Flora of Idyllwild Park, San Jacinto Mountains

Flora of Idyllwild Park, San Jacinto Mountains

Fig. 1. Lilly Creek in Idyllwild Park, looking downstream just below beginning of steep portion (see text below). This location is just southwest of the Nature Center. Click on the picture for a larger version.

Introduction
Fieldwork Dates
Floral Regions
Species Checklist
Notes on Some Species

Fig. 2. The flora of Idyllwild Park contains flowers large and small. Note the fingers for scale in the upper pictures, and the pine needles, branches and one incense-cedar twig for scale in the linked version of the lower picture. Click on the pictures for larger versions.

Upper left: the almost-unnoticeable teeny-tiny 3 mm (0.1 inch) flower of Parikh's threadstem, Nemacladus parikhiae, a species only described in 2020.
Upper right: the large showy flower of lemon lily, Lilium parryi, ~12 cm (5 inches) across, the probable namesake of Lilly Creek. (Picture from Tahquitz Valley since we do not yet have a picture of a lemon lily flower from Idyllwild Park.)
Lower: a field of flowers of volcanic gilia, Gilia ochroleuca ssp. exilis, and Palomar monkeyflower, Mimulus diffusus (called M. palmeri in the Jepson Manual), covering an area.
See Michael Charters' Field Trips Photo Gallery: Idyllwild County Park, San Jacinto Mountains, June 2010 for other pictures of flowers from Idyllwild Park.

Introduction

Idyllwild Park, a Riverside County Park, is located on the west side of Idyllwild. The Park contains a Nature Center on the north side, and a campground on the south side. Day use fees of $3 per adult, $2 per child and $1 per dog are charged.
The Park is roughly one mile long in the north-south direction at its maximum extent, and one half mile long in the east-west direction at its maximum extent. Its shape is roughly rectangular, with a rectangular piece missing on its northwest corner and a triangular piece missing on its southeast corner, with a total area of 202 acres.
Lilly Creek is the main feature of the western part of the Park, essentially forming the western boundary in the north Park and cutting a steep and deep gorge through the south Park as erosion has proceeded upstream from Strawberry Creek. There is over 560 feet of relief from the bottom of Lilly Creek to the top of the knolls above its banks (5200 feet elevation to over 5760 feet).
The USGS Topo Map uses the name Lilly Creek, although it is given as Lily Creek in other sources. The origin of the name is unknown. But since lemon lilies grow in the creek, it is probable that is the origin of the name. Historic references often spell lily as lillies, so the difference in the spelling is not significant.
Idyllwild Creek is the main topographic feature of the eastern and southeastern sides of the park, although most of the northern part of the creek is on private property to the east. The name Idyllwild Creek appears on a local Idyllwild map, but not on the USGS Topographic Map. Idyllwild Creek has a steep western bank extending to Idyllwild Park, and a gentle eastern bank that is essentially a relatively minor feature in Strawberry Creek Valley. Because of the latter, Idyllwild Creek is flatter in elevation profile along its course than Lilly Creek. Idyllwild Creek forms the southeastern boundary of the park and joins Lilly Creek near the southern end of the Park.
The topography of the Park is shown in the Google Earth image in Fig. 3:

Fig. 3. Google Earth View of Idyllwild Park (approximately the shaded green area) looking northwest. The gorge of Lilly Creek is visible in the center, with the campground road contouring up Lilly Creek to cross the Creek. Lilly Creek has created the steep slopes in the southern half of the park. In contrast, the northern half of the park is much flatter. The steep western bank of Idyllwild Creek is mostly to the east of the Park. It is probably not a coincidence that the meadow visible just above the confluence of Lilly and Idyllwild creeks is located there, due to the presumed-higher water table in that area. Click on the picture for a larger unlabeled version.

The elevation profile of Lilly Creek in Idyllwild Park confirms what is seen in Fig. 3. The erosional nick point, shown by the yellow circle in the middle of the profile, occurs just southwest of the Nature Center, at the location shown in Fig. 1. Above that, the creek elevation profile has a constant slope of about 450 feet per mile. Below that the creek has an elevation profile of about 1200 feet per mile until it levels out in the flattish Strawberry Creek area.
Idyllwild Park has a rich vascular-plant flora due to its many different habitats resulting from its topography, and the fairly well-watered Lilly Creek, at least before it was dammed at Foster Lake with upstream diversions for the Idyllwild Water District.
Fieldwork Dates

Our main plant surveys occurred on all-day trips on 15, 21 and 25 June 2010, and 20 November 2012, by the following people:
Table 1. Major floral surveys of Idyllwild Park

Date Surveyed Area of Park Participants
15 June 2010 Northwest, mostly on trail Tom Chester, Dave Stith and Kay Madore
21 June 2010 Northwest, mostly in Lilly Creek Tom Chester, Dave Stith and Michael Charters
25 June 2010 Southwest, mostly on trail, and Northeast Tom Chester, Dave Stith and Michael Charters
20 November 2012 Southeast and Northeast Tom Chester and Dave Stith

On each survey, every species encountered was recorded, with its first location recorded by GPS. Abundances were estimated for each species at the end of each survey, by estimating the minimum number of plants we saw along our entire survey up to a maximum of 99 plants.
In addition:

Dave Stith did shorter surveys on 1 and 5 September 2010; 19 and 20 April 2011; 13 June 2011; 8 July 2011; 31 December 2011; 2 May 2013; and 16 June 2013, usually with one or two species as targets.
Bruce Watts did bloom surveys on 22 and 29 April 2017, recording all species in bloom, as well as finding Collomia on 17 June 2013 and teasel in 2012, and counting the Calochortus on 26 June 2016.
Tom Chester and Nancy Accola surveyed most of the Park on 2 May 2017, with Bruce Watts joining us for the first half of the survey, looking for additions to the flora, checking on some species observed in the past, and updating abundances for some species.
Tom Chester, Keir Morse, Don Rideout, and Bruce Watts botanized the park on 22 May 2017 to check on a number of species that needed further work.
Tom Chester botanized the park on 21 September and on 7 October 2020 to check on some species and to look for additions to the flora that might be visible at this time of year.

Floral Regions

Our surveys showed dramatic differences in the flora between different areas of the park, so we decided to present the flora separately for three different areas of the park. Our division is shown in Fig. 4, which also shows the hiking trails of the Park. As is almost always the case, boundaries between areas are sometimes somewhat arbitrary.

Fig. 4. Map showing Idyllwild Park, its hiking trails, and division into three floral areas (larger version). Base map from Riverside County Parks

The Southwest area has the clearest delineation, being the only part of Idyllwild Park significantly west of Lilly Creek, with a large area of chaparral plants not present in the rest of the Park. Its boundary with the southeast section is taken to be between the Hillside Trail and the Campground Road.
The Southeast area has extensive flattish moist areas not present in the rest of the Park; the only meadow in the Park; significant human disturbance from the 88 site campground; and borders an extensively-developed residential area. Its northern boundary is taken to be approximately along the top of the steep area to the north. This roughly corresponds to the northern boundary of the southwest section. Trails from the Nature Center that lead to the campground allow a fairly clear delineation on the north, except along the Perimeter Trail. Fortunately, the flora doesn't vary much in that section of the Perimeter Trail, so it makes little difference exactly where the boundary is placed.
The southeast portion has south-facing slopes similar to those of the southwest portion.
The North area is distinctive due to its terrain being above the erosional nick point, and hence not as steep as in the other two sections. Probably as a result of its gentler topography, it is covered by pine forest with no significant chaparral component. It contains the upper portion of Lilly Creek, which has a flatter elevation profile in the north.
The routes we have surveyed as of 24 November 2012, along with the GPS points where the first occurrence of species were recorded, are shown in this map (The GPS points shown on the north side of State Route 243 were not used for the Park Flora.) Although our surveys were not done with these divisions into flora areas in mind, our surveys were perhaps not-coincidentally usually confined to one area.
A few surveys crossed boundaries of the floral areas. For those, it was straightforward to use the GPS locations to assign the first location of species to floral areas. However, plant abundance estimates from those surveys could not be ex post facto separated into the floral areas.
Another effect from surveys that crossed boundaries is a possible loss of completeness in the checklist for the second floral area traversed. This occurs when species are present in both floral areas, since those species would be recorded only from their first location, which would be in the first floral area traversed. Fortunately, we have enough surveys beginning in each area that this loss of completeness is probably not high.
Now that we have the floral areas defined, future surveys can produce better abundance estimates and species lists for each area.
Species Checklist

The following is the latest plant checklist for the park from all surveys to 21 September 2020. One species, Orobanche fasciculata (= Aphyllon fasciculatum), came from an iNaturalist observation, and might in fact be an undescribed species, since its flowers are white, not yellow.
We would have included vouchers from Idyllwild Park, but there are no vouchers online that we can be certain have come from the Park itself. There are no online vouchers as of 29 November 2012 whose locality is Idyllwild Park. There are many vouchers with a locality of Idyllwild; we have collected those separately in a Voucher Flora of the Idyllwild Area. However, some of those vouchers are not in fact even from Idyllwild itself, since vouchers often just list the nearest city within 20 miles or even more.
Basic information about the checklist presentation and links:

Notes on the Scientific Names Used At This Site and
Information about the links from the Scientific Name and Common Name.

Three species have qualifiers given in front of the scientific name, indicating that the species determination is not 100%. Notes on some of those species are given in the next section.
An asterisk before the Common Name indicates a non-native taxon.
The three columns under the header #Plants give a minimum estimate of the number of plants we saw along our entire survey in each area (up to a maximum of 99 plants). The southwest area (SW) is presented first, since its flora is significantly different from the other two areas, being dominated by chaparral. The other two areas, the north half of the park (N) and the southeast part of the park (SE), have significant riparian areas and are dominated by the pine forest.
For photographs of many of the species from here, see:

Field Trips Photo Gallery: Idyllwild County Park, San Jacinto Mountains, June 2010 by Michael Charters for photographs of many of these species from 6/21/10 and 6/25/10.
iNaturalist observations for Idyllwild Park. As of 20 September 2020, there are 304 observations from this area. Don Rideout has contributed the most observations, 45 observations of 44 species, with 77 other observers contributing observations. Be aware that we have not reviewed the determination of most of these observations. Many are not identified to species, and some are incorrectly identified.

This checklist, the version as of 9 March 2021, is also in PlantID.net (except for one species, Nemacladus parikhiae). The list there allows different displays of this checklist, including an illustrated one, and allows searches on some plant characteristics; see Information about PlantID.net.
The PlantID.net platform provides the following information about the lifeforms of the species on this checklist. It contains:

22 trees, of which 15 are broadleaf trees and 7 are conifers.
24 shrubs. Some plants can sometimes be trees, and sometimes shrubs, so there is overlap in the numbers of shrubs and trees.
5 vines.
165 herbaceous plants.
6 ferns.
39 grasses, sedges, and rushes.

Update on 4 July 2021: Deborah Burroughs found three to five Garrya flavescens plants on the south side of the small peak that is immediately south/southwest of the Visitor Center. This will be added to the checklist the next time it is updated.
Version for printing, without other text on this page: html (8 pages) or pdf Clickbook booklet (2 double-sided pages). (See printing instructions for an explanation of these options)

# Famil Scientific Name
Link goes to the Jepson eFlora (*)Common Name
Link goes to Calphotos # Plants
SW N SE
Ferns
1 Denns Pteridium aquilinum var. pubescens bracken 99 90
2 Equis Equisetum arvense field horsetail 10
3 Equis Equisetum laevigatum smooth scouring rush 99
4 Pteri Cheilanthes covillei beady lipfern 5
5 Pteri Pellaea mucronata var. mucronata bird's-foot fern 15 2
6 Woods Cystopteris fragilis brittle bladder fern 1
Gymnosperms
7 Cupre Calocedrus decurrens incense-cedar 99 99 80
8 Cupre ~Hesperocyparis stephensonii Stephenson cypress 10
9 Pinac Abies concolor white fir 2 2
10 Pinac Pinus coulteri Coulter pine 50 30 99
11 Pinac Pinus jeffreyi Jeffrey pine 17 1
12 Pinac Pinus lambertiana sugar pine 10 40 20
13 Pinac Pinus ponderosa var. pacifica ponderosa pine 6 99 99
Magnoliids
14 Laura Umbellularia californica California bay 10
Eudicots
15 Adoxa Sambucus nigra ssp. caerulea blue elderberry 2
16 Anaca Rhus aromatica basketbush 30
17 Apiac Tauschia parishii Parish's tauschia 50 50
18 Apocy Asclepias californica California milkweed 8
19 Apocy Asclepias eriocarpa Indian milkweed 80 25 35
20 Apocy Vinca major *greater periwinkle 2 99
21 Aster Achillea millefolium yarrow 20 50 20
22 Aster Agoseris retrorsa spear-leaved mountain dandelion 99 2 99
23 Aster Ambrosia acanthicarpa bur-ragweed 25 2
24 Aster Artemisia douglasiana mugwort 99 99
25 Aster Artemisia dracunculus wild tarragon 1 35
26 Aster Artemisia ludoviciana ssp. incompta mountain mugwort 5 20 30
27 Aster Artemisia tridentata big sagebrush 7
28 Aster Cirsium occidentale var. californicum California thistle 10 11
29 Aster Cirsium vulgare *bull thistle 25
30 Aster Corethrogyne filaginifolia California-aster 2 20 99
31 Aster Ericameria cuneata var. cuneata rock goldenbush 1
32 Aster Ericameria nauseosa var. bernardina San Bernardino rubber rabbitbrush 1 8
33 Aster Ericameria pinifolia pine goldenbush 1
34 Aster Erigeron foliosus var. foliosus leafy daisy 99 99 50
35 Aster Eriophyllum confertiflorum var. confertiflorum golden yarrow 50 10 99
36 Aster Gnaphalium palustre western marsh cudweed 99
37 Aster Helianthus californicus California sunflower 47
38 Aster Hemizonella minima dwarf madia 99
39 Aster Heterotheca sessiliflora ssp. echioides bristly goldenaster 1
40 Aster Hulsea vestita ssp. callicarpha beautiful hulsea 20 5 2
41 Aster Lactuca serriola *prickly lettuce 3
42 Aster Lessingia glandulifera var. glandulifera sticky lessingia 99
43 Aster Madia gracilis slender madia 20
44 Aster Malacothrix clevelandii annual malacothrix 1
45 Aster Pentachaeta aurea golden daisy 99 99
46 Aster Pseudognaphalium californicum California everlasting 1 1
47 Aster Pseudognaphalium thermale slender everlasting 10 99 99
48 Aster Rafinesquia californica California chicory 5
49 Aster Solidago velutina ssp. californica goldenrod 50 99 99
50 Aster Sonchus asper ssp. asper *prickly sow thistle 1
51 Aster Sonchus oleraceus *sow thistle 2
52 Aster Stephanomeria exigua ssp. deanei slender wreathplant 1
53 Aster Symphyotrichum defoliatum San Bernardino aster 99
54 Aster Tanacetum parthenium *feverfew 99 99
55 Aster Tragopogon dubius *yellow salsify 7
56 Aster Uropappus lindleyi silver puffs 20 5
57 Betul Alnus rhombifolia white alder 20 15
58 Borag Cryptantha affinis common cryptantha 5 10
59 Borag Cryptantha micrantha var. lepida mountain red-root cryptantha 99 99 99
60 Borag Cryptantha muricata var. jonesii Jones' prickly-nut cryptantha 99 20
61 Borag Cryptantha simulans pine cryptantha 1 99
62 Borag Phacelia imbricata var. patula imbricate phacelia 99
63 Borag Phacelia minor wild canterbury bells 17
64 Borag Plagiobothrys collinus var. fulvescens California popcorn flower 5
65 Borag Plagiobothrys collinus var. ursinus Bear Valley popcorn flower 30
66 Borag Plagiobothrys tenellus slender popcorn flower 99 99
67 Brass Arabidopsis thaliana *Mouse-ear cress 50
68 Brass Boechera californica California elegant rock-cress 50 99 50
69 Brass Cardamine hirsuta *hairy toothwort 20
70 Brass Draba verna *spring draba 99 99
71 Brass Erysimum capitatum var. capitatum western wallflower 17
72 Brass Hirschfeldia incana *shortpod mustard 99
73 Brass Lepidium virginicum ssp. menziesii wild pepper-grass 99
74 Brass Rorippa curvisiliqua curvepod yellow-cress 2
75 Brass Sisymbrium altissimum *tumble-mustard 5 99
76 Brass Thysanocarpus curvipes ssp. curvipes fringe-pod 5
77 Campa Heterocodon rariflorum few-flowered heterocodon 99
78 Campa Nemacladus longiflorus var. longiflorus thread plant 40 99
79 Campa Nemacladus parikhiae Parikh's threadstem 99
80 Capri Lonicera subspicata var. denudata southern honeysuckle 99 70 65
81 Caryo Cerastium fontanum ssp. vulgare *perennial mouse-ear chickweed 2 20
82 Caryo Lychnis coronaria *rose campion 5 1
83 Caryo Silene verecunda white catch-fly 1 99
84 Caryo Spergularia rubra *red sandspurry 20
85 Caryo Stellaria media *common chickweed 10
86 Convo Calystegia occidentalis ssp. fulcrata western morning-glory 30
87 Datis Datisca glomerata Durango root 60
88 Dipsa Dipsacus sativus *Fuller's teasel 1
89 Erica Arctostaphylos glandulosa Eastwood manzanita 40
90 Erica Arctostaphylos pringlei ssp. drupacea pink-bracted manzanita 99 99 99
91 Erica Arctostaphylos pungens Mexican manzanita 2 10
92 Erica Chimaphila menziesii little prince's pine 25
93 Erica Rhododendron occidentale western azalea 60 30
94 Erica Sarcodes sanguinea snow-plant 2 18
95 Eupho Euphorbia lurida woodland spurge 1
96 Fabac Acmispon americanus var. americanus Spanish clover 99
97 Fabac Acmispon heermannii var. heermannii silky lotus 50 50 10
98 Fabac Acmispon nevadensis var. nevadensis Sierra Nevada lotus 30 1
99 Fabac Acmispon strigosus strigose lotus 50 99 99
100 Fabac Astragalus douglasii var. parishii Parish' Jacumba milk-vetch 10 99 40
101 Fabac Hosackia crassifolia var. crassifolia broad-leaved lotus 4 50
102 Fabac Lathyrus latifolius *perennial sweet pea 1
103 Fabac Lathyrus vestitus var. vestitus wild sweetpea 10 99
104 Fabac Lupinus bicolor dwarf lupine 30 20
105 Fabac Lupinus concinnus ssp. optatus showy bajada lupine 5 99 70
106 Fabac Lupinus excubitus var. austromontanus mountain grape-soda lupine 99 99 35
107 Fabac Lupinus formosus western lupine 99 5
108 Fabac Lupinus latifolius var. parishii Parish's lupine 10
109 Fabac ~Melilotus indicus *sourclover 1
110 Fabac Trifolium microcephalum small-head field clover 99 99
111 Fabac Trifolium monanthum ssp. grantianum mountain carpet clover 5
112 Fabac Trifolium variegatum variegated clover 99 30
113 Fabac Trifolium willdenovii tomcat clover 99 99 5
114 Fagac Quercus chrysolepis canyon live oak 50 99 99
115 Fagac Quercus kelloggii California black oak 10 70 55
116 Fagac Quercus wislizeni var. frutescens interior live oak 99 99
117 Fagac Quercus Xmorehus oracle oak 1 1 4
118 Genti Frasera parryi Parry's green-gentian 16 9
119 Geran Erodium cicutarium *redstem filaree 99
120 Gross Ribes nevadense mountain pink currant 80 60
121 Hyper Hypericum scouleri Scouler's St. Johnswort 10
122 Lamia Mentha spicata *spearmint 20
123 Lamia Monardella breweri ssp. lanceolata mustang mint 50 10 10
124 Lamia Scutellaria siphocampyloides curve-flowered skullcap 99 10
125 Lamia Stachys rigida rigid hedge-nettle 99 99
126 Lamia Trichostema austromontanum ssp. austromontanum southern bluecurls 99
127 Loasa Mentzelia dispersa scattered blazing star 10
128 Malva Sidalcea sparsifolia checkerbloom 20
129 Monti Calyptridium monandrum sand cress 30 10 3
130 Monti Claytonia parviflora ssp. utahensis narrow-leaved miner's lettuce 2 20
131 Monti Claytonia parviflora ssp. viridis green miner's lettuce 30 99 99
132 Monti Claytonia rubra ssp. rubra red-stemmed miner's lettuce 99 40
133 Onagr Camissonia strigulosa strigose suncup 2
134 Onagr Camissoniopsis confusa San Bernardino suncup 30 3 99
135 Onagr Clarkia rhomboidea diamond-petaled clarkia 10 99 99
136 Onagr Epilobium brachycarpum autumn willowweed 5
137 Onagr Epilobium canum ssp. latifolium mountain California-fuchsia 18 30 45
138 Onagr Epilobium ciliatum ssp. ciliatum willowherb 99 99
139 Onagr Epilobium densiflorum spike primrose 10
140 Onagr Epilobium glaberrimum ssp. glaberrimum glaucus willowherb 15
141 Onagr Gayophytum heterozygum zig-zag gayophytum 50
142 Onagr Gayophytum oligospermum pinegrove groundsmoke 1 50 30
143 Onagr Oenothera elata ssp. hirsutissima Hooker's evening-primrose 30
144 Oroba Castilleja applegatei ssp. martinii Martin's paintbrush 10 20
145 Oroba Castilleja minor ssp. spiralis lesser paintbrush 99
146 Oroba Cordylanthus rigidus ssp. setiger bristly bird's beak 99 99
147 Oroba Orobanche fasciculata clustered broomrape iN
148 Phrym Mimulus aurantiacus var. pubescens hairy bush monkeyflower 20 23
149 Phrym Mimulus brevipes wide-throated yellow monkeyflower 99 2
150 Phrym Mimulus cardinalis scarlet monkeyflower 70
151 Phrym Mimulus diffusus Palomar monkeyflower 99 99
152 Phrym Mimulus floribundus floriferous monkeyflower 50 99
153 Phrym Mimulus fremontii var. fremontii Fremont's monkeyflower 99 50
154 Phrym Mimulus guttatus common monkeyflower 99
155 Phrym Mimulus pilosus false monkeyflower 90 99
156 Plant Antirrhinum coulterianum Coulter's snapdragon 1 5
157 Plant Keckiella ternata var. ternata whorledleaf penstemon 99 20 7
158 Plant Penstemon centranthifolius scarlet bugler 50 20 75
159 Plant Penstemon labrosus San Gabriel beardtongue 2 60 10
160 Plant Veronica americana American speedwell 99
161 Plata Platanus racemosa western sycamore 1
162 Polem Allophyllum glutinosum sticky false-gilia 10
163 Polem Collomia grandiflora large-flowered collomia 61
164 Polem Eriastrum sapphirinum sapphire woolly-star 99
165 Polem Gilia capitata ssp. abrotanifolia globe gilia x
166 Polem Gilia diegensis coastal gilia 42 30
167 Polem Gilia ochroleuca ssp. exilis volcanic gilia 99 99
168 Polem Leptosiphon ciliatus whisker-brush 10 99 99
169 Polem Leptosiphon lemmonii Lemmon's linanthus 99
170 Polem Saltugilia australis southern gilia 99
171 Polem Saltugilia splendens ssp. splendens splendid gilia 45 99
172 Polyg Eriogonum apiculatum San Jacinto buckwheat 99
173 Polyg Eriogonum davidsonii Davidson's buckwheat 2
174 Polyg Eriogonum gracile var. incultum slender buckwheat 99
175 Polyg Eriogonum molestum pineland buckwheat 99
176 Polyg Eriogonum wrightii var. membranaceum Wright's buckwheat 20 30 40
177 Polyg Polygonum aviculare ssp. depressum *knotweed 1
178 Polyg Rumex acetosella *common sheep sorrel 50
179 Polyg Rumex californicus willow-leaved dock 50 40
180 Polyg Rumex conglomeratus *whorled dock 1
181 Polyg Rumex crispus *curly dock 2 3
182 Polyg Sidotheca trilobata three-lobed oxytheca 99
183 Ranun Aquilegia formosa western columbine 80 80
184 Ranun Clematis ligusticifolia virgin's bower 1
185 Ranun Thalictrum fendleri var. fendleri Fendler's meadow-rue 60 60
186 Rhamn Ceanothus leucodermis chaparral whitethorn 16 3 5
187 Rhamn Ceanothus palmeri Palmer's ceanothus 1
188 Rhamn Frangula californica California coffeeberry 8 6
189 Rhamn Rhamnus ilicifolia hollyleaf redberry 4
190 Rosac Adenostoma fasciculatum chamise 99
191 Rosac Amelanchier utahensis Utah service-berry 2
192 Rosac Cercocarpus betuloides var. betuloides birch-leaf mountain-mahogany 99 6
193 Rosac Drymocallis glandulosa var. viscida sticky cinquefoil 2 99
194 Rosac Drymocallis lactea var. lactea Nevada cinquefoil 4
195 Rosac Fragaria vesca woodland strawberry 99 99
196 Rosac Horkelia clevelandii var. clevelandii Cleveland's horkelia 99 5
197 Rosac Potentilla gracilis var. fastigiata slender cinquefoil 30
198 Rosac Prunus virginiana var. demissa western choke-cherry 20
199 Rosac Rosa californica California wild rose 99 99
200 Rubia Galium angustifolium ssp. angustifolium narrowleaf bedstraw 15 70 70
201 Rubia Galium aparine common bedstraw 60 99
202 Salic Populus fremontii ssp. fremontii Fremont cottonwood 10
203 Salic Salix gooddingii black willow 20
204 Salic Salix laevigata red willow 1 3
205 Salic Salix lasiandra var. lasiandra shining willow 11
206 Salic Salix lasiolepis arroyo willow 15 60
207 Scrop Verbascum thapsus *common mullein 12
208 Urtic Urtica dioica ssp. holosericea stinging nettle 99 99
209 Viola Viola purpurea ssp. quercetorum goosefoot yellow violet 20 2 60
210 Visca Arceuthobium campylopodum pine dwarf-mistletoe 5 99 99
211 Visca Phoradendron serotinum ssp. tomentosum oak mistletoe 20 50
Monocots
212 Agava Hesperoyucca whipplei chaparral yucca 20 5
213 Cyper Carex fracta fragile sheath sedge 99
214 Cyper Carex multicaulis forest sedge 10 30 3
215 Cyper Carex praegracilis clustered field sedge 99
216 Cyper Carex senta swamp sedge 70
217 Cyper ~Carex subfusca brown sedge 12
218 Cyper Scirpus microcarpus panicled bulrush 99 99
219 Irida Iris germanica *iris 1
220 Junca Juncus bryoides moss rush 99
221 Junca Juncus bufonius var. occidentalis western toad rush 99
222 Junca Juncus effusus ssp. austrocalifornicus Sonoran rush 70 90
223 Junca Juncus mexicanus Mexican rush 20 2 99
224 Junca Juncus oxymeris pointed rush 99
225 Lilia Calochortus palmeri var. munzii San Jacinto mariposa lily 73
226 Lilia Lilium parryi lemon lily 30
227 Orchi Piperia elongata dense-flowered rein orchid 10 20 25
228 Poace Agrostis exarata spike bentgrass 5 20
229 Poace Agrostis pallens seashore bentgrass 3 50
230 Poace Agrostis scabra rough bentgrass 5
231 Poace Bromus carinatus var. carinatus California brome 10 99
232 Poace Bromus diandrus *ripgut brome 1 12 22
233 Poace Bromus hallii Hall's brome 20 60
234 Poace Bromus madritensis ssp. rubens *red brome 1
235 Poace Bromus tectorum *downy brome 99 99 99
236 Poace Cynodon dactylon *Bermuda grass 1
237 Poace Deschampsia elongata slender hairgrass 3 6
238 Poace Elymus elymoides squirreltail 30 99 90
239 Poace Elymus glaucus ssp. glaucus blue wildrye 20 99
240 Poace Elymus hispidus *intermediate wheatgrass 1
241 Poace Elymus triticoides creeping wild rye 99
242 Poace Festuca microstachys small fescue 99
243 Poace Festuca myuros *rattail fescue 99 99 99
244 Poace Hordeum murinum *foxtail barley 30
245 Poace Koeleria macrantha June grass 99 99
246 Poace Melica imperfecta coast-range melic 75 16
247 Poace Muhlenbergia rigens deergrass 99 20 70
248 Poace Phalaris canariensis *canarygrass 2
249 Poace Poa bulbosa ssp. vivipara *bulbous blue grass 99 99
250 Poace Poa pratensis ssp. agassizensis Kentucky blue grass 20 99
251 Poace Poa secunda ssp. secunda one-sided bluegrass 50 99
252 Poace Secale cereale *rye 5 1
253 Poace Stipa coronata giant needlegrass 30
254 Poace Stipa occidentalis var. pubescens Elmer's needlegrass 5 30
255 Themi Bloomeria crocea goldenstar 20 60
256 Themi Dichelostemma capitatum ssp. capitatum blue dicks 50 99 8

Notes on Some Species

Hesperocyparis stephensonii. There are about 10 mature trees that have been planted along the southernmost boundary of the park next to a residential area. Since these are planted trees, they could be Hesperocyparis arizonica, or some hybrid between those two species.
Mimulus diffusus. The Jepson Manual First and Second Editions combined this species with the similar M. palmeri species found in the Transverse Ranges and north. M. diffusus is endemic to the Peninsular Ranges and was considered separate from M. palmeri in Munz 1974. Fraga (2012) demonstrated that there were actually five separate species lumped under the name M. palmeri, and restored M. diffusus as a separate species. Fraga updated the Jepson eFlora treatment in 2018 and restored this species, now under the name of Erythranthe diffusa.
Helianthus californicus. This species is found in only one spot, just below the trail southwest of the Visitor Center where it crosses Lilly Creek. It is short rhizomed, and therefore produces a lot of stems, each spaced a few inches apart. Tom's count was 47 live stems in 2020, not all of which produced flowers.

We thank Deborah Burroughs for the minimum estimate of the number of plants of Umbellularia californica, California bay.

Date	Surveyed Area of Park	Participants
15 June 2010	Northwest, mostly on trail	Tom Chester, Dave Stith and Kay Madore
21 June 2010	Northwest, mostly in Lilly Creek	Tom Chester, Dave Stith and Michael Charters
25 June 2010	Southwest, mostly on trail, and Northeast	Tom Chester, Dave Stith and Michael Charters
20 November 2012	Southeast and Northeast	Tom Chester and Dave Stith

#	Famil	Scientific Name Link goes to the Jepson eFlora	(*)Common Name Link goes to Calphotos	# Plants
SW	N	SE
Ferns
1	Denns	Pteridium aquilinum var. pubescens	bracken		99	90
2	Equis	Equisetum arvense	field horsetail			10
3	Equis	Equisetum laevigatum	smooth scouring rush		99
4	Pteri	Cheilanthes covillei	beady lipfern	5
5	Pteri	Pellaea mucronata var. mucronata	bird's-foot fern	15		2
6	Woods	Cystopteris fragilis	brittle bladder fern		1
Gymnosperms
7	Cupre	Calocedrus decurrens	incense-cedar	99	99	80
8	Cupre	~Hesperocyparis stephensonii	Stephenson cypress			10
9	Pinac	Abies concolor	white fir	2	2
10	Pinac	Pinus coulteri	Coulter pine	50	30	99
11	Pinac	Pinus jeffreyi	Jeffrey pine		17	1
12	Pinac	Pinus lambertiana	sugar pine	10	40	20
13	Pinac	Pinus ponderosa var. pacifica	ponderosa pine	6	99	99
Magnoliids
14	Laura	Umbellularia californica	California bay	10
Eudicots
15	Adoxa	Sambucus nigra ssp. caerulea	blue elderberry			2
16	Anaca	Rhus aromatica	basketbush	30
17	Apiac	Tauschia parishii	Parish's tauschia	50	50
18	Apocy	Asclepias californica	California milkweed	8
19	Apocy	Asclepias eriocarpa	Indian milkweed	80	25	35
20	Apocy	Vinca major	*greater periwinkle		2	99
21	Aster	Achillea millefolium	yarrow	20	50	20
22	Aster	Agoseris retrorsa	spear-leaved mountain dandelion	99	2	99
23	Aster	Ambrosia acanthicarpa	bur-ragweed		25	2
24	Aster	Artemisia douglasiana	mugwort		99	99
25	Aster	Artemisia dracunculus	wild tarragon		1	35
26	Aster	Artemisia ludoviciana ssp. incompta	mountain mugwort	5	20	30
27	Aster	Artemisia tridentata	big sagebrush			7
28	Aster	Cirsium occidentale var. californicum	California thistle	10		11
29	Aster	Cirsium vulgare	*bull thistle			25
30	Aster	Corethrogyne filaginifolia	California-aster	2	20	99
31	Aster	Ericameria cuneata var. cuneata	rock goldenbush	1
32	Aster	Ericameria nauseosa var. bernardina	San Bernardino rubber rabbitbrush	1	8
33	Aster	Ericameria pinifolia	pine goldenbush	1
34	Aster	Erigeron foliosus var. foliosus	leafy daisy	99	99	50
35	Aster	Eriophyllum confertiflorum var. confertiflorum	golden yarrow	50	10	99
36	Aster	Gnaphalium palustre	western marsh cudweed		99
37	Aster	Helianthus californicus	California sunflower		47
38	Aster	Hemizonella minima	dwarf madia		99
39	Aster	Heterotheca sessiliflora ssp. echioides	bristly goldenaster			1
40	Aster	Hulsea vestita ssp. callicarpha	beautiful hulsea	20	5	2
41	Aster	Lactuca serriola	*prickly lettuce		3
42	Aster	Lessingia glandulifera var. glandulifera	sticky lessingia			99
43	Aster	Madia gracilis	slender madia		20
44	Aster	Malacothrix clevelandii	annual malacothrix		1
45	Aster	Pentachaeta aurea	golden daisy	99	99
46	Aster	Pseudognaphalium californicum	California everlasting	1		1
47	Aster	Pseudognaphalium thermale	slender everlasting	10	99	99
48	Aster	Rafinesquia californica	California chicory	5
49	Aster	Solidago velutina ssp. californica	goldenrod	50	99	99
50	Aster	Sonchus asper ssp. asper	*prickly sow thistle		1
51	Aster	Sonchus oleraceus	*sow thistle			2
52	Aster	Stephanomeria exigua ssp. deanei	slender wreathplant	1
53	Aster	Symphyotrichum defoliatum	San Bernardino aster			99
54	Aster	Tanacetum parthenium	*feverfew		99	99
55	Aster	Tragopogon dubius	*yellow salsify			7
56	Aster	Uropappus lindleyi	silver puffs	20	5
57	Betul	Alnus rhombifolia	white alder		20	15
58	Borag	Cryptantha affinis	common cryptantha		5	10
59	Borag	Cryptantha micrantha var. lepida	mountain red-root cryptantha	99	99	99
60	Borag	Cryptantha muricata var. jonesii	Jones' prickly-nut cryptantha	99	20
61	Borag	Cryptantha simulans	pine cryptantha	1	99
62	Borag	Phacelia imbricata var. patula	imbricate phacelia			99
63	Borag	Phacelia minor	wild canterbury bells	17
64	Borag	Plagiobothrys collinus var. fulvescens	California popcorn flower		5
65	Borag	Plagiobothrys collinus var. ursinus	Bear Valley popcorn flower			30
66	Borag	Plagiobothrys tenellus	slender popcorn flower	99	99
67	Brass	Arabidopsis thaliana	*Mouse-ear cress		50
68	Brass	Boechera californica	California elegant rock-cress	50	99	50
69	Brass	Cardamine hirsuta	*hairy toothwort		20
70	Brass	Draba verna	*spring draba		99	99
71	Brass	Erysimum capitatum var. capitatum	western wallflower		17
72	Brass	Hirschfeldia incana	*shortpod mustard			99
73	Brass	Lepidium virginicum ssp. menziesii	wild pepper-grass			99
74	Brass	Rorippa curvisiliqua	curvepod yellow-cress		2
75	Brass	Sisymbrium altissimum	*tumble-mustard	5		99
76	Brass	Thysanocarpus curvipes ssp. curvipes	fringe-pod	5
77	Campa	Heterocodon rariflorum	few-flowered heterocodon		99
78	Campa	Nemacladus longiflorus var. longiflorus	thread plant	40	99
79	Campa	Nemacladus parikhiae	Parikh's threadstem		99
80	Capri	Lonicera subspicata var. denudata	southern honeysuckle	99	70	65
81	Caryo	Cerastium fontanum ssp. vulgare	*perennial mouse-ear chickweed		2	20
82	Caryo	Lychnis coronaria	*rose campion		5	1
83	Caryo	Silene verecunda	white catch-fly	1	99
84	Caryo	Spergularia rubra	*red sandspurry			20
85	Caryo	Stellaria media	*common chickweed			10
86	Convo	Calystegia occidentalis ssp. fulcrata	western morning-glory	30
87	Datis	Datisca glomerata	Durango root		60
88	Dipsa	Dipsacus sativus	*Fuller's teasel			1
89	Erica	Arctostaphylos glandulosa	Eastwood manzanita	40
90	Erica	Arctostaphylos pringlei ssp. drupacea	pink-bracted manzanita	99	99	99
91	Erica	Arctostaphylos pungens	Mexican manzanita		2	10
92	Erica	Chimaphila menziesii	little prince's pine			25
93	Erica	Rhododendron occidentale	western azalea		60	30
94	Erica	Sarcodes sanguinea	snow-plant	2	18
95	Eupho	Euphorbia lurida	woodland spurge		1
96	Fabac	Acmispon americanus var. americanus	Spanish clover		99
97	Fabac	Acmispon heermannii var. heermannii	silky lotus	50	50	10
98	Fabac	Acmispon nevadensis var. nevadensis	Sierra Nevada lotus		30	1
99	Fabac	Acmispon strigosus	strigose lotus	50	99	99
100	Fabac	Astragalus douglasii var. parishii	Parish' Jacumba milk-vetch	10	99	40
101	Fabac	Hosackia crassifolia var. crassifolia	broad-leaved lotus	4	50
102	Fabac	Lathyrus latifolius	*perennial sweet pea			1
103	Fabac	Lathyrus vestitus var. vestitus	wild sweetpea	10		99
104	Fabac	Lupinus bicolor	dwarf lupine		30	20
105	Fabac	Lupinus concinnus ssp. optatus	showy bajada lupine	5	99	70
106	Fabac	Lupinus excubitus var. austromontanus	mountain grape-soda lupine	99	99	35
107	Fabac	Lupinus formosus	western lupine	99		5
108	Fabac	Lupinus latifolius var. parishii	Parish's lupine		10
109	Fabac	~Melilotus indicus	*sourclover			1
110	Fabac	Trifolium microcephalum	small-head field clover	99	99
111	Fabac	Trifolium monanthum ssp. grantianum	mountain carpet clover		5
112	Fabac	Trifolium variegatum	variegated clover	99	30
113	Fabac	Trifolium willdenovii	tomcat clover	99	99	5
114	Fagac	Quercus chrysolepis	canyon live oak	50	99	99
115	Fagac	Quercus kelloggii	California black oak	10	70	55
116	Fagac	Quercus wislizeni var. frutescens	interior live oak	99		99
117	Fagac	Quercus Xmorehus	oracle oak	1	1	4
118	Genti	Frasera parryi	Parry's green-gentian		16	9
119	Geran	Erodium cicutarium	*redstem filaree			99
120	Gross	Ribes nevadense	mountain pink currant		80	60
121	Hyper	Hypericum scouleri	Scouler's St. Johnswort		10
122	Lamia	Mentha spicata	*spearmint			20
123	Lamia	Monardella breweri ssp. lanceolata	mustang mint	50	10	10
124	Lamia	Scutellaria siphocampyloides	curve-flowered skullcap	99		10
125	Lamia	Stachys rigida	rigid hedge-nettle		99	99
126	Lamia	Trichostema austromontanum ssp. austromontanum	southern bluecurls		99
127	Loasa	Mentzelia dispersa	scattered blazing star	10
128	Malva	Sidalcea sparsifolia	checkerbloom			20
129	Monti	Calyptridium monandrum	sand cress	30	10	3
130	Monti	Claytonia parviflora ssp. utahensis	narrow-leaved miner's lettuce		2	20
131	Monti	Claytonia parviflora ssp. viridis	green miner's lettuce	30	99	99
132	Monti	Claytonia rubra ssp. rubra	red-stemmed miner's lettuce		99	40
133	Onagr	Camissonia strigulosa	strigose suncup			2
134	Onagr	Camissoniopsis confusa	San Bernardino suncup	30	3	99
135	Onagr	Clarkia rhomboidea	diamond-petaled clarkia	10	99	99
136	Onagr	Epilobium brachycarpum	autumn willowweed		5
137	Onagr	Epilobium canum ssp. latifolium	mountain California-fuchsia	18	30	45
138	Onagr	Epilobium ciliatum ssp. ciliatum	willowherb		99	99
139	Onagr	Epilobium densiflorum	spike primrose		10
140	Onagr	Epilobium glaberrimum ssp. glaberrimum	glaucus willowherb		15
141	Onagr	Gayophytum heterozygum	zig-zag gayophytum	50
142	Onagr	Gayophytum oligospermum	pinegrove groundsmoke	1	50	30
143	Onagr	Oenothera elata ssp. hirsutissima	Hooker's evening-primrose			30
144	Oroba	Castilleja applegatei ssp. martinii	Martin's paintbrush	10		20
145	Oroba	Castilleja minor ssp. spiralis	lesser paintbrush		99
146	Oroba	Cordylanthus rigidus ssp. setiger	bristly bird's beak	99		99
147	Oroba	Orobanche fasciculata	clustered broomrape		iN
148	Phrym	Mimulus aurantiacus var. pubescens	hairy bush monkeyflower	20		23
149	Phrym	Mimulus brevipes	wide-throated yellow monkeyflower	99		2
150	Phrym	Mimulus cardinalis	scarlet monkeyflower		70
151	Phrym	Mimulus diffusus	Palomar monkeyflower	99	99
152	Phrym	Mimulus floribundus	floriferous monkeyflower	50	99
153	Phrym	Mimulus fremontii var. fremontii	Fremont's monkeyflower	99	50
154	Phrym	Mimulus guttatus	common monkeyflower		99
155	Phrym	Mimulus pilosus	false monkeyflower	90	99
156	Plant	Antirrhinum coulterianum	Coulter's snapdragon	1		5
157	Plant	Keckiella ternata var. ternata	whorledleaf penstemon	99	20	7
158	Plant	Penstemon centranthifolius	scarlet bugler	50	20	75
159	Plant	Penstemon labrosus	San Gabriel beardtongue	2	60	10
160	Plant	Veronica americana	American speedwell			99
161	Plata	Platanus racemosa	western sycamore			1
162	Polem	Allophyllum glutinosum	sticky false-gilia	10
163	Polem	Collomia grandiflora	large-flowered collomia			61
164	Polem	Eriastrum sapphirinum	sapphire woolly-star			99
165	Polem	Gilia capitata ssp. abrotanifolia	globe gilia			x
166	Polem	Gilia diegensis	coastal gilia		42	30
167	Polem	Gilia ochroleuca ssp. exilis	volcanic gilia	99	99
168	Polem	Leptosiphon ciliatus	whisker-brush	10	99	99
169	Polem	Leptosiphon lemmonii	Lemmon's linanthus			99
170	Polem	Saltugilia australis	southern gilia	99
171	Polem	Saltugilia splendens ssp. splendens	splendid gilia	45	99
172	Polyg	Eriogonum apiculatum	San Jacinto buckwheat		99
173	Polyg	Eriogonum davidsonii	Davidson's buckwheat	2
174	Polyg	Eriogonum gracile var. incultum	slender buckwheat			99
175	Polyg	Eriogonum molestum	pineland buckwheat		99
176	Polyg	Eriogonum wrightii var. membranaceum	Wright's buckwheat	20	30	40
177	Polyg	Polygonum aviculare ssp. depressum	*knotweed			1
178	Polyg	Rumex acetosella	*common sheep sorrel			50
179	Polyg	Rumex californicus	willow-leaved dock		50	40
180	Polyg	Rumex conglomeratus	*whorled dock	1
181	Polyg	Rumex crispus	*curly dock		2	3
182	Polyg	Sidotheca trilobata	three-lobed oxytheca	99
183	Ranun	Aquilegia formosa	western columbine		80	80
184	Ranun	Clematis ligusticifolia	virgin's bower			1
185	Ranun	Thalictrum fendleri var. fendleri	Fendler's meadow-rue		60	60
186	Rhamn	Ceanothus leucodermis	chaparral whitethorn	16	3	5
187	Rhamn	Ceanothus palmeri	Palmer's ceanothus		1
188	Rhamn	Frangula californica	California coffeeberry		8	6
189	Rhamn	Rhamnus ilicifolia	hollyleaf redberry	4
190	Rosac	Adenostoma fasciculatum	chamise	99
191	Rosac	Amelanchier utahensis	Utah service-berry		2
192	Rosac	Cercocarpus betuloides var. betuloides	birch-leaf mountain-mahogany	99		6
193	Rosac	Drymocallis glandulosa var. viscida	sticky cinquefoil	2	99
194	Rosac	Drymocallis lactea var. lactea	Nevada cinquefoil		4
195	Rosac	Fragaria vesca	woodland strawberry		99	99
196	Rosac	Horkelia clevelandii var. clevelandii	Cleveland's horkelia		99	5
197	Rosac	Potentilla gracilis var. fastigiata	slender cinquefoil			30
198	Rosac	Prunus virginiana var. demissa	western choke-cherry		20
199	Rosac	Rosa californica	California wild rose		99	99
200	Rubia	Galium angustifolium ssp. angustifolium	narrowleaf bedstraw	15	70	70
201	Rubia	Galium aparine	common bedstraw		60	99
202	Salic	Populus fremontii ssp. fremontii	Fremont cottonwood			10
203	Salic	Salix gooddingii	black willow			20
204	Salic	Salix laevigata	red willow		1	3
205	Salic	Salix lasiandra var. lasiandra	shining willow			11
206	Salic	Salix lasiolepis	arroyo willow		15	60
207	Scrop	Verbascum thapsus	*common mullein			12
208	Urtic	Urtica dioica ssp. holosericea	stinging nettle		99	99
209	Viola	Viola purpurea ssp. quercetorum	goosefoot yellow violet	20	2	60
210	Visca	Arceuthobium campylopodum	pine dwarf-mistletoe	5	99	99
211	Visca	Phoradendron serotinum ssp. tomentosum	oak mistletoe	20	50
Monocots
212	Agava	Hesperoyucca whipplei	chaparral yucca	20		5
213	Cyper	Carex fracta	fragile sheath sedge		99
214	Cyper	Carex multicaulis	forest sedge	10	30	3
215	Cyper	Carex praegracilis	clustered field sedge			99
216	Cyper	Carex senta	swamp sedge		70
217	Cyper	~Carex subfusca	brown sedge		12
218	Cyper	Scirpus microcarpus	panicled bulrush		99	99
219	Irida	Iris germanica	*iris		1
220	Junca	Juncus bryoides	moss rush	99
221	Junca	Juncus bufonius var. occidentalis	western toad rush		99
222	Junca	Juncus effusus ssp. austrocalifornicus	Sonoran rush		70	90
223	Junca	Juncus mexicanus	Mexican rush	20	2	99
224	Junca	Juncus oxymeris	pointed rush		99
225	Lilia	Calochortus palmeri var. munzii	San Jacinto mariposa lily	73
226	Lilia	Lilium parryi	lemon lily		30
227	Orchi	Piperia elongata	dense-flowered rein orchid	10	20	25
228	Poace	Agrostis exarata	spike bentgrass		5	20
229	Poace	Agrostis pallens	seashore bentgrass	3		50
230	Poace	Agrostis scabra	rough bentgrass		5
231	Poace	Bromus carinatus var. carinatus	California brome	10	99
232	Poace	Bromus diandrus	*ripgut brome	1	12	22
233	Poace	Bromus hallii	Hall's brome	20		60
234	Poace	Bromus madritensis ssp. rubens	*red brome			1
235	Poace	Bromus tectorum	*downy brome	99	99	99
236	Poace	Cynodon dactylon	*Bermuda grass		1
237	Poace	Deschampsia elongata	slender hairgrass		3	6
238	Poace	Elymus elymoides	squirreltail	30	99	90
239	Poace	Elymus glaucus ssp. glaucus	blue wildrye	20	99
240	Poace	Elymus hispidus	*intermediate wheatgrass			1
241	Poace	Elymus triticoides	creeping wild rye			99
242	Poace	Festuca microstachys	small fescue	99
243	Poace	Festuca myuros	*rattail fescue	99	99	99
244	Poace	Hordeum murinum	*foxtail barley			30
245	Poace	Koeleria macrantha	June grass	99		99
246	Poace	Melica imperfecta	coast-range melic	75		16
247	Poace	Muhlenbergia rigens	deergrass	99	20	70
248	Poace	Phalaris canariensis	*canarygrass		2
249	Poace	Poa bulbosa ssp. vivipara	*bulbous blue grass	99		99
250	Poace	Poa pratensis ssp. agassizensis	Kentucky blue grass		20	99
251	Poace	Poa secunda ssp. secunda	one-sided bluegrass	50	99
252	Poace	Secale cereale	*rye	5	1
253	Poace	Stipa coronata	giant needlegrass	30
254	Poace	Stipa occidentalis var. pubescens	Elmer's needlegrass	5	30
255	Themi	Bloomeria crocea	goldenstar	20	60
256	Themi	Dichelostemma capitatum ssp. capitatum	blue dicks	50	99	8

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Voucher Flora of the Idyllwild Area
Plants of Southern California: Regional Floras

Copyright © 2010-2020 by Tom Chester, Dave Stith, Bruce Watts, Michael Charters, Keir Morse, Don Rideout, Kay Madore, and Nancy Accola.
Commercial rights reserved. Permission is granted to reproduce any or all of this page for individual or non-profit institutional internal use as long as credit is given to us at this source:
http://tchester.org/sj/flora/idyllwild_park.html
Comments and feedback: Tom Chester
Last update: 11 October 2020; link to PlantID.net added 9 March 2021; links to Riverside County Parks removed on 17 May 2021 since the county broke all the links; update to mention Garrya flavescens on 4 July 2021



Fig. 2. The flora of Idyllwild Park contains flowers large and small. Note the fingers for scale in the upper pictures, and the pine needles, branches and one incense-cedar twig for scale in the linked version of the lower picture. Click on the pictures for larger versions. Upper left: the almost-unnoticeable teeny-tiny 3 mm (0.1 inch) flower of Parikh's threadstem, Nemacladus parikhiae, a species only described in 2020. Upper right: the large showy flower of lemon lily, Lilium parryi, ~12 cm (5 inches) across, the probable namesake of Lilly Creek. (Picture from Tahquitz Valley since we do not yet have a picture of a lemon lily flower from Idyllwild Park.) Lower: a field of flowers of volcanic gilia, Gilia ochroleuca ssp. exilis, and Palomar monkeyflower, Mimulus diffusus (called M. palmeri in the Jepson Manual), covering an area. See Michael Charters' Field Trips Photo Gallery: Idyllwild County Park, San Jacinto Mountains, June 2010 for other pictures of flowers from Idyllwild Park.