Flora of Northeast Vallecito Mountains and Adjacent Lower Borrego Valley
Panorama of the entrance to the Elephant Tree Area, which is the alluvial fan beyond the gap between the low hills on the left and right. Above the alluvial fan is the main mass of the Vallecito Mountains in the distance. The photograph was taken from Split Mountain Road at the San Diego / Imperial County Line about six miles south of Ocotillo Wells, looking west, on 1 December 2009. The dirt road to the Elephant Tree Discovery Trail is in the foreground.
See also a panorama of six photographs looking north and east from the lower end of Starfish Cove taken on 27 December 2009. The largest green blotches on the hillside in that panorama are Elephant Trees.
Michael Charters' Photo Galleries from 11 March 2010 and 13 February 2010 contain many beautiful photographs from this area.
The Checklist has been updated from all 10 days of fieldwork through 21 February 2013, but the text has not yet been updated. 11 additional species have been included from a survey of a nearby area of the Fish Creek Mountains
This checklist is a start at a true flora of the northeast Vallecito Mountains and the adjacent Lower Borrego Valley.
There are several botanical highlights of the flora here, which we will detail in the future. Perhaps the most interesting is that so far our surveys have not found a single non-native species in Alma Canyon and Alma Wash, nor are there any vouchers of non-native species there. The closest non-native species found so far are along Split Mountain Road near Ocotillo Wells. However, since we haven't botanized this area in prime time, we may yet find a few non-native species.
The Vallecito Mountains are somewhat curiously defined. The Vallecito Mountains, the Pinyon Mountains, and the North Pinyon Mountains form a fairly clear mountainous block, and hence logically should have a single name. But somehow the northwestern part of this block has been given the separate names of the Pinyon Mountains and the North Pinyon Mountains.
As a result, the Vallecito Mountains consist of a northeastern portion and a southern portion. The southern portion of the Vallecito Mountains trends mostly east-west, from Whale Peak on the west to Split Mountain on the east, with Hapaha Flat in the middle.
The northeastern portion is sandwiched between the Pinyon Mountains and Yaqui Ridge to the west, and the Fish Creek Mountains to the east. This northeastern portion trends northwest to southeast, following the fault along the southern edge of Lower Borrego Valley. It includes Sunset Mountain, Harper Canyon, Harper Flat, Starfish Cove, and the Elephant Tree Area.
In this flora, we include the adjacent portion of Lower Borrego Valley south of Old Kane Spring Road and west of Split Mountain Road. The Cactus Garden area at the mouth of Harper Canyon is in this area.
Although we haven't settled on exact boundaries of this area, our current concept is described in words as follows, and shown on the first map below. The northern boundary of this area is Old Kane Spring Road, and the eastern boundary is Split Mountain Road to Split Mountain. The southeastern boundary is roughly along a line from Split Mountain to the southeastern edge of the Mescal Bajada. Southeast of Harper Flat, this southeastern boundary is the same as the boundary used by Gander in his Floristic Regions of San Diego County to separate the Borrego Desert area from the Vallecito Area.
The northeastern boundary will probably be something like the southeastern edge of the Mescal Bajada to the junction of SR78 and Old Kane Spring Road. The area northwest of this northeastern boundary probably is better associated with The Narrows and Mescal Bajada, since that area drains into those regions.
The elevation of this area ranges from the benchmark elevation of 67 feet at Split Mountain Road just north of Halfhill Lake (see second map below) to 3657 feet at Sunset Mountain. Almost the entire area drains to the Lower Borrego Valley and then the Salton Sea via northeast or east-flowing drainages. In this respect, this area is similar to the Extreme Northeast San Diego County area.
The species on this checklist come from three sources:
- A search for vouchers in the area close to the Starfish Cove / Elephant Tree Area, done as advance preparation for our first trip to Starfish Cove / Elephant Tree Area on 1 December 2009.
- A Checklist for Starfish Cove by Jon Rebman, which includes the Elephant Tree Area and contains six additional species not found in the voucher list, mostly Opuntia.
- Four checklists compiled in the field for the following areas:
- the Elephant Tree / Alma Wash area on 1 December 2009 by Tom Chester, Mike Crouse, and RT Hawke;
- the lower Alma Canyon Area on 9 December 2009 by Tom Chester and Mike Crouse; and
- the middle Alma Canyon Area on 15 December 2009 by Tom Chester, Mike Crouse, and RT Hawke.
- the upper Alma Canyon Area below the east end of Starfish Cove on 27 December 2009 by Tom Chester, RT Hawke, Shaun Hawke and Pam Pallette.
The floristic area denoted here is plotted in the following large-scale map:
Voucher locations from this area and nearby are plotted as blue diamonds. The northwest group of vouchers come from the Cactus Garden area; the northeast group from the Old Kane Spring / Split Mountain Road area; the extreme southeast group is at Fish Creek near Split Mountain Road; and the southwest group is from the Dave McCain Spring Area northeast of Hapaha Flat. Future revisions of this checklist will probably remove the southwest group, if they are outside our final choice of the floral area boundary.
The vouchers within the rectangle outlined in black are from the Alma Canyon / Alma Wash area from Starfish Cove on the west and the Elephant Tree Area on the east. The rectangle gives the approximate location of the detail map shown below.
The vouchers come from a search on 29 November 2009 of the Consortium of California Herbaria.
The Consortium records were searched for vouchers with coordinates between 33.027 and 33.126° N. Latitude, and -116.259 and -116.083 E. Longitude. Localities of those vouchers were examined, and additional searches were made to find ones in San Diego County from those localities, including Starfish Cove; Elephant Tree; Kane Springs Road. The detailed localities of those vouchers were examined and ones not definitely in the target area were eliminated. In particular, I eliminated all vouchers whose localities placed them as being along SR78. (A few vouchers plot on SR78 east of Ocotillo Wells, but their localities are Old Kane Springs Road which is probably different.)
339 vouchers were found of 148 taxa. Four collectors were responsible for 243 (72%) of those vouchers:
# Vouchers Collector 96 Jon Rebman, Larry Hendrickson 69 Frank F. Gander 49 Joe Barth 29 Margaret R. Mulligan, Thomas Rottler
December 2009 Field Surveys
We compiled separate detailed plant checklists for all species encountered along the four routes shown in the following map:
The approximate location of this detail map is given by the rectangle outlined by black in the large-scale map near the top of this page.
The survey on 1 December 2009 was confined to the alluvial fan / Alma Wash area, and included a small loop near the mouth of Alma Canyon and a larger loop in the middle portion. The total unique mileage surveyed was 4.0 miles. A total of 55 species was found in our 1 December 2009 field survey, of which an amazing 36 (65%) had at least one specimen in bloom. The large number of blooming species was due entirely to a monsoonal thunderstorm on 5 September 2009.
We hiked through roughly, but not exactly, the same route on 9 and 15 December 2009 and found four additional species in this area, for a total of 59 species observed in this area.
The survey on 9 December 2009 covered 0.6 miles above the mouth of Alma Canyon. That survey found a total of 56 species in the Canyon, of which 41 were also found in the 1 December 2009 survey. We hiked through the same route on 15 December 2009 and found two additional species for this area, for a total of 58 species for this section.
The survey on 15 December 2009 covered 0.43 miles above the end point of the 9 December 2009 survey. It found a total of 55 species, including eight species not found in either of the previous two surveys.
The survey on 27 December 2009 covered 1.31 miles above the end point of the 15 December 2009 survey. This was not as thorough a survey as the other surveys, since we spent most of our time just hiking to get to Starfish Cove. Nonetheless, this survey found a total of 57 species.
Eight additional species were found in brief surveys made in two stops also shown on the above map, surveyed briefly on 1 and 9 December 2009.
All surveys together found a total of 94 taxa.
Note that many of the normal winter / spring annuals and perennials are missing from our surveys due to the time of year.
Some of the species we found could not be reliably determined, either because the observed plants were dead (annuals) or were not in bloom and showing their key characteristics. Two of them are identified only to the genera level in the table below: Cuscuta sp. and Ephedra sp. (2 lv'd). Other taxa that need confirmation from plants in bloom are: Descurainia pinnata ssp. glabra; Eriogonum thomasii; Lupinus arizonicus; and Sphaeralcea ambigua var. ambigua. All of these have vouchers from this area, making these the likely determinations, but one never knows for sure without doing a proper determination.
Perhaps the most amazing thing revealed by our surveys is that we did not find a single non-native species in Alma Canyon and Alma Wash. The only non-native species we found were in our stops along Split Mountain Road.
Number of Species in the Combined Checklist
The combined checklist contains 182 taxa, although two of the vouchered species may not be correctly determined and perhaps three or four additional entries may not represent distinct taxa (see below). Of the 182 taxa, 149 are vouchered, 94 were found in our three December surveys, and 62 are present in Rebman's Checklist. Our surveys found 26 species not vouchered from this area or recorded in Rebman's Checklist, an increase of 17% in the total checklist.
Checklist for Northeast Vallecito Mountains
The Checklist follows the 2012 Jepson Manual Second Edition with only a few exceptions.
The Checklist is sorted first by the eight evolutionary categories (clades) used in the 2012 Second Edition Jepson Manual - lycophytes, ferns, etc., to eudicots and monocots - and then by family and scientific name. The clades are labeled in the Checklist. Note that this changes the order of presentation of the taxa from that of the 1993 First Edition.
The family name is abbreviated to the first five characters in order to save space in the table rows.
An asterisk before the Common Name indicates a non-native taxon.
The scientific name is linked to the latest online Jepson Manual description for each species, which also gives the months in which each species flowers. That link also gives a map of where the species occurs in California; a plot of elevation vs. latitude for California; and a histogram of the voucher collections by month.
A few species may not have working links, if their names have been updated more recently (such as Mimulus diffusus, which is still listed under M. palmeri in the online flora), or if they are reserved-judgment taxa which are listed in the entry for another taxon name. However, as of 16 January 2013, the Jepson Manual links have all been updated to link to the parent species for the taxa without their own entries. Taxa linked to anything other than the Jepson Manual link for the full scientific name used below have been indicated with a ^ after the scientific name, and are discussed here.
The common name for most species in the checklist is linked to Calphotos to give pictures of most taxa. Of course, there is no guarantee that the Calphotos pictures are correctly identified.
Note that the link will not always return pictures, since not every species has pictures at Calphotos, and a number of species still have their Calphotos pictures under the Jepson Manual First Edition Names. Some links have been made to the Calphotos pictures using the First Edition Jepson Manual name, if there are no pictures under the Second Edition name. Of course, that may result in a link with no pictures if those the names of those Calphotos pix are updated in the future to the Second Edition names.
Note also that the links below will return only the specified taxon at Calphotos, and not any subtaxa; i.e., a link to Cryptantha barbigera will not return photos of Cryptantha barbigera var. barbigera. There may be additional pictures at Calphotos under a different scientific name such as the First Edition Jepson Manual name.
Some links go to special pages with more information on those species.
The column #Plants gives a rough estimate of the minimum number of plants that we saw, with a maximum value of 99 plants. The main intent of this column is to indicate the species for which we found very few plants. Separate estimates are given for Alma Canyon (header AC); and for the rest of the area in the Elephant Tree area, as shown on the above map (header (El).
The columns with header #V give the number of vouchers found in this area. In the list below, the vouchers for Glorietta Canyon and Yaqui Meadows were combined to save space, under the header of Gl. The header YP gives the number of vouchers in the Yaqui Pass Area.
The column #V is the number of vouchers for each taxon from the Consortium, with a maximum value of 9. An entry of Rb is a species that appears on the Rebman checklist for Starfish Cove that has no vouchers here.
All Gutierrezia plants in our surveys have been assigned to G. californica. Plants called G. sarothrae here are the same taxon, intermediate between those two species found outside southern California.
We have assigned all Aristida purpurea plants just to the species name.
Notes for some of the taxa:
- The vouchered Camissonia brevipes may not be correctly determined. Jon Rebman informed us that other vouchers previously determined to be this species in San Diego County turned out to be misdetermined.
- The vouchered Chaenactis xantiana may not be correctly determined. Jon Rebman informed us that two of the three reported vouchers of this species in San Diego County turned out to be misdetermined, and this third voucher has not yet been reexamined.
- The vouchered Ditaxis californica is probably just a glabrous form of D. neomexicana and thus is not a separate species. See the 2006 Rebman and Simpson Checklist of the Vascular Plants of San Diego County.
- The Menodora scoparia reported on Rebman's Starfish Cove checklist is the same as the vouchered Menodora scabra. Although these two species have been combined since Rebman did his checklist, the specimens here almost surely conform to the Menodora scoparia species concept in the 1993 Jepson Manual. Hence we have chosen to list both species here.
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# Family Scientific Name (*)Common Name #V # Plants AC El Lycopods 1 Selag Selaginella eremophila desert spike-moss 1 Ferns 2 Pteri Cheilanthes parryi woolly lipfern 3 24 11 3 Pteri Notholaena californica California cloak fern 1 Gymnosperms 4 Cupre Juniperus californica California juniper 3 5 Ephed Ephedra aspera Mormon tea 3 57 11 Eudicots 6 Acant Justicia californica chuparosa 3 99 99 7 Amara Amaranthus albus *tumble pigweed 8 Amara Amaranthus fimbriatus fringed amaranth 8 30 9 Amara Tidestromia suffruticosa var. oblongifolia Arizona honeysweet 1 10 Apocy Asclepias albicans white-stemmed milkweed 1 11 Apocy Funastrum hirtellum rambling milkweed 2 99 99 12 Aster Adenophyllum porophylloides San Felipe dogweed 2 4 4 13 Aster Ambrosia dumosa burroweed 2 99 99 14 Aster Ambrosia salsola var. salsola cheesebush 4 99 15 Aster Baccharis brachyphylla short-leaved baccharis 1 16 Aster Bahiopsis parishii Parish's viguiera 7 1 17 Aster Baileya pauciradiata Colorado Desert marigold 1 18 Aster Bebbia juncea var. aspera sweetbush 5 99 99 19 Aster Brickellia atractyloides var. arguta California spear-leaved brickellia 1 20 Aster Brickellia desertorum desert brickellia 1 21 Aster Calycoseris wrightii white tackstem 5 4 69 22 Aster Chaenactis carphoclinia var. carphoclinia pebble pincushion 2 99 23 Aster Chaenactis fremontii Fremont pincushion 10 24 Aster Chaenactis stevioides desert pincushion 2 99 25 Aster Chaenactis xantiana Xantus' chaenactis 1 26 Aster Dicoria canescens desert dicoria 1 27 Aster Encelia farinosa brittlebush 82 99 28 Aster Encelia frutescens button encelia 4 29 Aster Geraea canescens hairy desert-sunflower 3 30 Aster Gutierrezia californica California matchweed 1 5 31 Aster Isocoma acradenia var. eremophila solitary-leaved alkali goldenbush 1 32 Aster Logfia arizonica Arizona herba impia 1 60 33 Aster Logfia depressa dwarf filago 1 1 34 Aster Logfia filaginoides California filago 35 35 Aster Malacothrix glabrata desert dandelion 2 1 11 36 Aster Malperia tenuis brown turbans 3 99 99 37 Aster Monoptilon bellioides desert star 3 1 99 38 Aster Palafoxia arida var. arida desert needle 4 99 39 Aster Pectis papposa var. papposa chinch-weed 1 99 40 Aster Perityle emoryi Emory's rock-daisy 4 7 99 41 Aster Pleurocoronis pluriseta arrow-leaf 2 99 66 42 Aster Prenanthella exigua bright-white 2 43 Aster Rafinesquia neomexicana desert chicory 1 1 99 44 Aster Senecio mohavensis Mojave ragwort 4 99 45 Aster Sonchus oleraceus *sow thistle 1 46 Aster Stephanomeria pauciflora wire-lettuce 2 52 99 47 Aster Stylocline intertexta tangled nest-straw 1 48 Aster Trichoptilium incisum yellow-head 1 1 99 49 Aster Trixis californica var. californica California trixis 1 7 1 50 Aster Xylorhiza orcuttii Orcutt's woody-aster 1 51 Borag Cryptantha angustifolia narrow-leaved cryptantha 2 99 52 Borag Cryptantha barbigera bearded cryptantha 99 99 53 Borag Cryptantha decipiens gravel cryptantha 99 30 54 Borag Cryptantha holoptera winged cryptantha 5 55 Borag Cryptantha maritima Guadalupe cryptantha 1 99 99 56 Borag Cryptantha pterocarya wing-nut cryptantha 99 57 Borag Cryptantha racemosa bushy cryptantha 3 63 15 58 Borag Cryptantha utahensis scented cryptantha 40 10 59 Borag Emmenanthe penduliflora var. penduliflora whispering bells 1 99 60 Borag Nama demissum var. demissum purple mat 1 61 Borag Nama hispidum var. spathulatum hispid nama 1 62 Borag Pectocarya heterocarpa chuckwalla pectocarya 1 99 63 Borag Pectocarya peninsularis Baja pectocarya 50 64 Borag Pectocarya platycarpa broad-fruited combseed 1 20 65 Borag Pectocarya recurvata curvenut combseed 1 99 66 Borag Phacelia cicutaria var. hispida caterpillar phacelia 30 30 67 Borag Phacelia crenulata var. crenulata heliotrope phacelia 2 68 Borag Phacelia crenulata var. minutiflora little-flowered heliotrope phacelia 6 1 99 69 Borag Phacelia distans common phacelia 1 7 99 70 Borag Phacelia pedicellata pedicellate phacelia 1 1 99 71 Borag Tiquilia palmeri Palmer's coldenia 3 31 72 Borag Tiquilia plicata plicate coldenia 2 73 Brass Boechera perennans perennial rock-cress 1 74 Brass Brassica tournefortii *Asian mustard 1 99 75 Brass Caulanthus cooperi Cooper's jewel-flower 1 10 76 Brass Caulanthus lasiophyllus California mustard 99 77 Brass Descurainia pinnata ssp. glabra smooth western tansy-mustard 1 20 25 78 Brass Dithyrea californica spectacle-pod 1 5 79 Brass Draba cuneifolia wedge-leaved draba 60 80 Brass Lepidium lasiocarpum ssp. lasiocarpum hairy-podded pepper-grass 4 99 81 Brass Lyrocarpa coulteri Coulter's lyrepod 3 26 11 82 Burse Bursera microphylla elephant tree 3 99 94 83 Cacta Cylindropuntia bigelovii teddy-bear cholla Rb 55 20 84 Cacta Cylindropuntia echinocarpa silver cholla 2 99 85 Cacta Cylindropuntia ganderi Gander's cholla Rb 99 99 86 Cacta Cylindropuntia ramosissima pencil cholla 50 87 Cacta Ferocactus cylindraceus California barrel cactus 1 99 99 88 Cacta Mammillaria dioica California fish-hook cactus 3 15 95 89 Cacta Mammillaria tetrancistra fish-hook cactus 1 8 90 Cacta Opuntia basilaris var. basilaris beavertail cactus Rb 9 99 91 Campa Nemacladus glanduliferus glandular nemacladus 99 92 Campa Nemacladus rubescens desert nemacladus 2 93 Campa Nemacladus tenuis var. tenuis desert threadplant 1 94 Caryo Achyronychia cooperi frost mat 1 1 95 Cheno Atriplex canescens var. canescens (s.l.) four-wing saltbush 96 Cheno Atriplex hymenelytra desert holly 2 97 Cheno Atriplex polycarpa cattle saltbush 98 Cheno Chenopodium murale *nettle-leaved goosefoot 3 99 Cheno Suaeda nigra bush seepweed 100 Cleom Cleomella obtusifolia Mojave cleomella 1 101 Convo Cuscuta californica var. papillosa papillate dodder 10 102 Crass Dudleya arizonica Arizona chalk dudleya 1 103 Cucur Cucurbita palmata coyote melon 1 2 104 Eupho Chamaesyce abramsiana Abrams' prostrate spurge 105 Eupho Chamaesyce melanadenia red-gland spurge 1 106 Eupho Chamaesyce micromera Sonoran spurge 1 21 5 107 Eupho Chamaesyce polycarpa small-seeded spurge 6 57 99 108 Eupho Chamaesyce setiloba Yuma spurge 99 99 109 Eupho Croton californicus California croton 3 2 110 Eupho Ditaxis lanceolata narrowleaf ditaxis 1 99 99 111 Eupho Ditaxis neomexicana New Mexico ditaxis 5 22 112 Eupho Ditaxis serrata var. californica California ditaxis 1 113 Eupho Ditaxis serrata var. serrata Yuma ditaxis 114 Eupho Euphorbia eriantha beetle spurge 1 6 20 115 Eupho Stillingia linearifolia linear-leaved stillingia 1 116 Fabac Acmispon maritimus var. brevivexillus short-bannered coastal lotus 31 11 117 Fabac Acmispon maritimus var. maritimus coastal lotus 2 118 Fabac Acmispon rigidus desert lotus 1 85 22 119 Fabac Acmispon strigosus strigose lotus 2 1 99 120 Fabac Astragalus aridus annual desert milk-vetch 1 121 Fabac Astragalus crotalariae Salton milk-vetch 6 122 Fabac Astragalus palmeri Palmer's milk-vetch 1 123 Fabac Calliandra eriophylla fairyduster 2 124 Fabac Dalea mollis silky dalea 14 125 Fabac Dalea mollissima downy dalea 3 1 126 Fabac Hoffmannseggia microphylla narrow hoffmannseggia 1 127 Fabac Lupinus arizonicus Arizona lupine 2 25 99 128 Fabac Lupinus concinnus bajada lupine 5 17 129 Fabac Marina parryi Parry's marina 2 130 Fabac Olneya tesota ironwood 14 131 Fabac Prosopis glandulosa var. torreyana honey mesquite 132 Fabac Psorothamnus emoryi Emory's indigo-bush 3 133 Fabac Psorothamnus schottii indigo bush 5 23 99 134 Fabac Psorothamnus spinosus smoke tree 99 135 Fabac Senegalia greggii catclaw Rb 99 99 136 Fouqu Fouquieria splendens ssp. splendens ocotillo 9 99 99 137 Geran Erodium cicutarium *redstem filaree 3 4 138 Geran Erodium texanum Texas filaree 1 17 139 Krame Krameria bicolor white rhatany 5 23 99 140 Krame Krameria erecta Pima rhatany 12 1 141 Lamia Hyptis emoryi desert-lavender 6 99 99 142 Lamia Salvia columbariae chia 1 143 Lamia Salvia vaseyi Vasey's sage 8 2 144 Loasa Mentzelia albicaulis white-stemmed blazing star 3 1 145 Loasa Mentzelia involucrata bracted blazing star 11 16 146 Loasa Petalonyx thurberi ssp. thurberi Thurber's sandpaper-plant 1 147 Malva Ayenia compacta ayenia 2 148 Malva Eremalche rotundifolia desert five-spot 4 40 149 Malva Hibiscus denudatus rock hibiscus 2 67 99 150 Malva Horsfordia newberryi Newberry's velvet mallow 2 72 45 151 Malva Sphaeralcea ambigua var. ambigua apricot mallow 5 6 152 Malva Sphaeralcea angustifolia copper globemallow 1 153 Malva Sphaeralcea emoryi var. emoryi Emory's globemallow 154 Monti Calyptridium monandrum sand cress 1 155 Monti Cistanthe ambigua desert red maids 1 156 Nycta Abronia villosa var. villosa hairy sand-verbena 2 157 Nycta Allionia incarnata var. incarnata trailing four o'clock 4 1 99 158 Nycta Boerhavia triquetra var. intermedia fivewing spiderling 87 75 159 Nycta Boerhavia wrightii Wright's spiderling 1 99 160 Nycta Mirabilis laevis var. retrorsa Bigelow's desert four-o'clock 2 1 99 161 Nycta Mirabilis tenuiloba slender-lobed four o'clock 6 99 74 162 Oleac Menodora scabra var. glabrescens broom twinberry Rb 163 Oleac Menodora scabra var. scabra rough desert olive 1 164 Onagr Camissoniopsis pallida ssp. pallida pale sun-cup 1 165 Onagr Chylismia brevipes yellow cups 2 166 Onagr Chylismia cardiophylla ssp. cardiophylla heartleaf sun-cup 1 50 21 167 Onagr Chylismia claviformis ssp. peirsonii brown-eyed primrose 6 99 168 Onagr Eremothera boothii ssp. condensata Booth's evening primrose 3 99 169 Onagr Eremothera refracta narrow-leaf sun-cup 2 99 170 Onagr Eulobus californicus California suncup 99 99 171 Onagr Oenothera deltoides ssp. deltoides dune primrose 172 Oroba Orobanche cooperi Cooper's broom-rape 2 2 173 Papav Argemone munita prickly poppy 1 174 Papav Eschscholzia minutiflora ssp. minutiflora small-flowered poppy 4 99 175 Papav Eschscholzia parishii Parish's poppy 2 99 176 Phrym Mimulus bigelovii var. bigelovii Bigelow's monkeyflower 1 99 177 Plant Mohavea confertiflora ghost flower 1 99 178 Plant Penstemon clevelandii var. clevelandii Cleveland's beardtongue 2 3 179 Plant Plantago ovata desert plantain 4 99 180 Polem Aliciella latifolia ssp. latifolia broad-leaf gilia 25 181 Polem Eriastrum eremicum ssp. eremicum desert woolly-star 20 182 Polem Gilia stellata star gilia 3 99 183 Polem Langloisia setosissima ssp. setosissima bristly langloisia 1 4 184 Polyg Chorizanthe brevicornu var. brevicornu brittle spineflower 2 3 20 185 Polyg Chorizanthe corrugata wrinkled spineflower 1 186 Polyg Chorizanthe rigida devil's spineflower 2 99 187 Polyg Eriogonum deflexum var. deflexum flat-topped buckwheat 2 188 Polyg Eriogonum fasciculatum var. polifolium California buckwheat 2 5 8 189 Polyg Eriogonum inflatum desert trumpet 4 55 72 190 Polyg Eriogonum thomasii Thomas' buckwheat 4 99 191 Polyg Eriogonum wrightii var. nodosum Wright's buckwheat 1 2 192 Polyg Pterostegia drymarioides threadstem 42 193 Resed Oligomeris linifolia lineleaf whitepuff 1 1 194 Rosac Prunus fremontii desert apricot 1 1 195 Rubia Galium stellatum star-flowered bedstraw 7 196 Rutac Thamnosma montana turpentine broom 2 197 Simmo Simmondsia chinensis jojoba 2 15 198 Solan Datura discolor desert thornapple 1 99 199 Solan Datura wrightii sacred datura 200 Solan Lycium andersonii Anderson's desert-thorn 2 3 201 Solan Lycium fremontii Fremont's boxthorn 202 Solan Nicotiana obtusifolia desert tobacco 4 21 15 203 Solan Physalis crassifolia thick-leaved ground cherry 2 10 94 204 Tamar Tamarix ramosissima *saltcedar 1 205 Urtic Parietaria hespera var. hespera pellitory 40 206 Visca Phoradendron californicum desert mistletoe 3 50 99 207 Zygop Fagonia pachyacantha sticky fagonia 4 1 99 208 Zygop Kallstroemia californica California caltrop 2 209 Zygop Larrea tridentata creosote bush 10 99 99 210 Zygop Tribulus terrestris *puncture-vine Monocots 211 Agava Agave deserti var. deserti desert agave 1 99 6 212 Agava Hesperocallis undulata desert lily 2 5 213 Poace Aristida adscensionis six-weeks three-awn 3 12 99 214 Poace Aristida purpurea purple three-awn 53 2 215 Poace Aristida purpurea var. parishii Parish three-awn 3 216 Poace Bouteloua aristidoides var. aristidoides needle grama 2 6 99 217 Poace Bouteloua barbata var. barbata six-weeks grama 1 50 218 Poace Dasyochloa pulchella fluff grass 2 21 219 Poace Festuca bromoides *brome fescue 53 220 Poace Hilaria rigida big galleta 5 53 99 221 Poace Muhlenbergia microsperma littleseed muhly 1 2 222 Poace Schismus barbatus *Mediterranean schismus 99
Identifying Notes for Some Taxa
# FAM Scientific Name Notes 1 Asteraceae Chaenactis xantiana longest phyllaries 10-18 mm, bases glabrous, tips densely puberulent, glands 0; corollas radial; peduncles not glandular 2 Asteraceae Filago arizonica heads in forks and tips of branches 3 Fabaceae Caesalpinia virgata hairy shrub 0.5-2 m, branches gen lfless, rush-like, green; lf odd-2 ternate-pinnate, 1 deg lflets 3; fr sickle-shaped, 1.5-2.5 cm 4 Fabaceae Calliandra eriophylla shrub < 30 cm; lvs even 2-pinnate; fr 5 cm, flat 5 Hydrophyllaceae Nama hispidum var. spathulatum st ascending to erect; seeds fusiform, yellow to orange 6 Malvaceae Sphaeralcea angustifolia lvs linear-lanceolate 7 Oleaceae Menodora scabra herbage rough-puberulent to scabrous; calyx lobes 8-11; upper lf length < 4 x width 8 Oleaceae Menodora scoparia herbage ~glabrous; calyx lobes 5-8; upper lf length > 5 x width 9 Onagraceae Camissonia brevipes Voucher may be C. cardiophylla. C. cardiophylla is a perennial with cauline, simple lvs, and sepals with non-free tips; C. brevipes is an annual gen with a well-developed basal rosette, with simple to 1-pinnate leaves, and sepals with free tips.
Voucher data provided by the participants of the Consortium of California Herbaria (ucjeps.berkeley.edu/consortium/)
Copyright © 2009-2015 by Tom Chester, Mike Crouse, RT Hawke, Shaun Hawke, Michael Charters, Kate Harper, Adrienne Ballwey and Pam Pallette.
Permission is freely granted to reproduce any or all of this page as long as credit is given to us at this source:
Comments and feedback: Tom Chester
Last update: 12 January 2015