Plant Guide to Sylvan Meadows Road / Shivela / Stevenson Canyon / Fenceline Trails, Santa Rosa Plateau

This is a working list, about which we make no guarantees at all until we officially release it. Use at your own risk!

Introduction and Explanation of Plant Trail Guides

Highlights of This Trail
Fieldwork Dates and Summary of List Changes With Time
The Plant Guide
Comments On Specific Species


This guide begins at the Sylvan Meadows parking area, which is across Clinton Keith Road from the Hidden Valley parking area. This is on the north side of Clinton Keith, and is where the horse trailers park. This parking area is 0.7 miles southwest from the Visitor Center along Clinton Keith Road.

The guide includes the first 0.60 miles of the Sylvan Meadows Road, to its junction with the Shivela Trail. The Shivela Trail meets the Stevenson Canyon Trail after 0.39 miles. This guide then follows the Stevenson Canyon Trail to near its end, including the alternate trail in the middle, and then resumes on the Shivela Trail to its end at Sierra Elena Road. It crosses Clinton Keith Road, and then takes the Fenceline Trail back to the parking area.

The entire loop trip is ~3.9 miles, with about 500 feet of elevation gain. Most of that gain, 400 feet, is on the Stevenson Canyon Trail.

Ranger Kevin Smith pronounces Shivela as shiv a lah, and we follow his lead.

Highlights of This Trail

The botanical highlights of this trail are:

Number of Unique Taxa On This Trail

The following histogram gives the number of trails in our database that contain each taxon on this trail. There were 90 trails in our database when this histogram was made; 16 of those trails, including this one, are at the Santa Rosa Plateau Ecological Reserve. A number of "1" means the taxon has only been found only on this list, among all the trails in our database; numbers of "16" or smaller may indicate taxa found only in this area.

Number of Trails
Containing A Taxon
Number Of Taxa
On This Trail
% of Taxa
On This Trail
Total Taxa230100%

We found 1 additional species not in the above table, since it has not been positively identified yet. The unidentified ones are marked with ? or sp in the id? column in the guide, and have no entries in the #all column.

Fieldwork Dates and Summary of List Changes With Time

The following table gives the dates the trail was walked and taxa recorded. After each visit, the table gives the total number of taxa on the list and the breakdown of the taxa without positive identification. See Explanation of Plant Trail Guides to understand the symbols below.

Visit DateVisit ## taxa# "?"# "sp"# "~"# "ssp"

The fieldwork was incomplete after mile 2.25 on 11/27/04, since it began raining on us then. Only the last 0.84 miles was covered on 12/23/04. The walk on 1/7/06 was fast-paced, so little botanical work was done.

The Plant Guide

Version for printing, without lines and other text on this page: html (10 pages), or pdf Clickbook booklet (3 double-sided pages). (See printing instructions for an explanation of these options)

The mileages have been adjusted to GPS measurements of these trails, up to mile 3.02. Typical errors should be 0.01-0.02 miles.

MileS#id?Common NameLatin Name#here#all
0.00   Begin Sylvan Meadows Road on nw side of parking lot; elevation 1880 feet (573 m). Guide begins at gate. The first three off-trail species are best seen just before the gate.
0.00r  (California buckwheat, Eriogonum fasciculatum var. foliolosum; Emory's baccharis, Baccharis emoryi; mule fat, Baccharis salicifolia)
0.00l  (California peony, Paeonia californica)
0.00b1 *soft chessBromus hordeaceus99 / 940
0.00b2 *wild oatsAvena fatua99 / 926
0.00b3 *shortpod mustardHirschfeldia incana99 / 951
0.00r4 California-asterLessingia filaginifolia var. filaginifolia50 / 951
0.00b5 *foxtail barleyHordeum murinum ssp. leporinum50 / 315
0.00l6 Spanish cloverLotus purshianus var. purshianus99 / 931
0.00l7 *short-fruited filareeErodium brachycarpum99 / 914
0.00r8 small-flowered fiddleneckAmsinckia menziesii var. menziesii50 / 98
0.00b9 *red bromeBromus madritensis ssp. rubens99 / 953
0.00l10 *ripgut bromeBromus diandrus99 / 952
0.00b11 *prickly lettuceLactuca serriola99 / 942
0.00l12 rusty-haired popcorn flowerPlagiobothrys nothofulvus99 / 913
0.00l13 *narrowleaf filagoFilago gallica99 / 945
0.00l14 sharp-toothed sanicleSanicula arguta20 / 916
0.00r15 vinegar weedTrichostema lanceolatum40 / 915
0.00l16 California poppyEschscholzia californica10 / 229
0.00l17 checkerbloomSidalcea malviflora ssp. sparsifolia99 / 925
0.00l18 graceful tarplantHolocarpha virgata ssp. elongata99 / 915
0.00l  (splendid mariposa lily, Calochortus splendens)
0.00l19 purple needlegrassNassella pulchra99 / 920
0.00r20 *knotweedPolygonum arenastrum30 / 921
0.00r21 *sand spurreySpergularia bocconei / 14
0.00l22 coast-range melicMelica imperfecta50 / 943
0.00r23 *scarlet pimpernelAnagallis arvensis99 / 933
0.00l24 California fuchsiaEpilobium canum ssp. canum20 / 421
0.00l25 *smooth cat's earHypochaeris glabra99 / 935
0.00r26 *windmill pinkSilene gallica99 / 933
0.00b27 *redstem filareeErodium cicutarium99 / 955
0.00l28 *California burcloverMedicago polymorpha99 / 940
0.00l29 *hairy rattail fescueVulpia myuros var. hirsuta99 / 919
0.00l30 common bedstrawGalium aparine99 / 738
0.00l31 low barleyHordeum depressum10 / 21
0.00l32 purple clarkiaClarkia purpurea ssp. quadrivulnera99 / 926
0.00l33 johnny jump-upViola pedunculata99 / 916
0.00r34 Mexican rushJuncus mexicanus99 / 516
0.00b35 western ragweedAmbrosia psilostachya50 / 938
0.00l36 *Italian rye-grassLolium multiflorum99 / 918
0.00l37 *rose cloverTrifolium hirtum10 / 113
0.01l38 *smilo grassPiptatherum miliaceum+1 / 120
0.01b39 *cut-leaved geraniumGeranium dissectum99 / 513
0.01b40 clustered field sedgeCarex praegracilis99 / 55
0.01c41 toad rushJuncus bufonius var. bufonius99 / 914
0.01l42 *weak blue grassPoa infirma10 / 16
0.01b43 *curly dockRumex crispus50 / 923
0.01b44 *grass polyLythrum hyssopifolia99 / 915
0.01l45 *prickly sow thistleSonchus asper ssp. asper20 / 930
0.01l46 wrinkled rushJuncus rugulosus20 / 313
0.01r47 *Bermuda grassCynodon dactylon30 / 332
0.01l48 *whorled dockRumex conglomeratus20 / 311
0.01r  Check for saltgrass
0.01l49 common spikerushEleocharis macrostachya99 / 512
0.01   Cross drainage, seasonally wet and very muddy
0.01r50 *common cudweedGnaphalium luteo-album2 / 217
0.01l51 wire rushJuncus balticus10 / 12
0.01l52 *goldentopLamarckia aurea30 / 522
0.01l53 *rabbits-foot grassPolypogon monspeliensis20 / 224
0.01l  (Engelmann oak, Quercus engelmannii)
0.02l54 common fiddleneckAmsinckia menziesii var. intermedia30 / 915
0.03l55 San Diego birdsfoot lotusLotus hamatus20 / 524
0.03l56 dove weedEremocarpus setigerus10 / 325
0.03l  Check for wild celery, Apiastrum angustifolium
0.03l57 rattlesnake weedDaucus pusillus / 29
0.04l58 dwarf lupineLupinus bicolor99 / 929
0.05l59 Indian milkweedAsclepias eriocarpa30 / 918
0.05l60 tree cloverTrifolium ciliolatum / 12
0.08r61 elk thistleCirsium scariosum50 / 912
0.08l62 long-stemmed buckwheatEriogonum elongatum var. elongatum50 / 928
0.08l63 Pomona locoweedAstragalus pomonensis30 / 911
0.09l  Sign: "Trail closed"
0.10r64 *slender wild oatsAvena barbata / 40
0.10l65 saltgrassDistichlis spicata50 / 316
0.11l66 deergrassMuhlenbergia rigens30 / 521
0.11   Cross drainage (check trees upstream for id, cottonwood or willows)
0.11l  (willow-leaved dock, Rumex salicifolius var. denticulatus)
0.11l67 seaside heliotropeHeliotropium curassavicum10 / 110
0.11l  (Vasey's prickly-pear, Opuntia vaseyi)
0.11l68~Carolina geraniumGeranium carolinianum10 / 15
0.11r69 *hedge mustardSisymbrium officinale99 / 520
0.11 70 *horehoundMarrubium vulgare1 / 132
0.12r  (Palmer's goldenbush, Ericameria palmeri var. pachylepis)
0.14c71 *pineapple weedChamomilla suaveolens5 / 119
0.15l72 Engelmann oakQuercus engelmannii20 / 923
0.15l73 miner's lettuceClaytonia perfoliata ssp. perfoliata99 / 422
0.17l  About 30 plants of the unusual purple clarkia, Clarkia purpurea ssp. quadrivulnera, variant without petals and with a very congested terminal inflorescence.
0.19r  (mouse-ear chickweed, Cerastium glomeratum)
0.22r  (western sycamore, Platanus racemosa; big leaf mistletoe, Phoradendron macrophyllum)
0.22r  A dense field of long-stemmed buckwheat, Eriogonum elongatum var. elongatum
0.24r74 western sycamorePlatanus racemosa3 / 327
0.24r75 chaparral yuccaYucca whipplei3 / 331
0.25l  Jct. old road; Sign: "Authorized personnel only"
0.25l76 pin-point cloverTrifolium gracilentum var. gracilentum / 8
0.25l77 chick lupineLupinus microcarpus var. microcarpus50 / 99
0.25l78 silver puffsUropappus lindleyi / 26
0.26l79 California lotusLotus wrangelianus / 4
0.27l80 Palmer's goldenbushEricameria palmeri var. pachylepis10 / 310
0.30   Cross drainage
0.30b81 *bull thistleCirsium vulgare20 / 420
0.30r82 *milk thistleSilybum marianum+1 / 111
0.30r  (weeded out gazania, Gazania X (mounding hybrid))
0.31r83 splendid mariposa lilyCalochortus splendens50 / 920
0.39l84 variegated cloverTrifolium variegatum / 5
0.39l85 balloon cloverTrifolium depauperatum var. truncatum / 7
0.42l86 *annual blue grassPoa annua / 12
0.42   Cross drainage
0.42l87 clustered toad rushJuncus bufonius var. congestus20 / 19
0.44l88 owl's-cloverCastilleja densiflora10 / 17
0.46l89 blue dicksDichelostemma capitatum ssp. capitatum50 / 946
0.49l90 slender tarweedHemizonia fasciculata99 / 918
0.60l  Jct. Shivela Trail; go left on it; elevation 1920 feet (585 m). Sign: "Shivela Trail to Sierra Elena Road 1.2 mi (left); Sycamore Meadows Road to Visitor Center 1.4 mi (right)"
0.63r  (yerba mansa, Anemopsis californica)
0.63r91 horseweedConyza canadensis30 / 939
0.64r92 *nit grassGastridium ventricosum99 / 926
0.64r  (A field of rigid hedge-nettle, Stachys ajugoides var. rigida, in the drainage)
0.64   Long switchback left
0.67r93 soap plantChlorogalum pomeridianum var. pomeridianum50 / 919
0.69r  (chamise, Adenostoma fasciculatum)
0.71r  (black sage, Salvia mellifera)
0.77r94 Gambel's dwarf milk-vetchAstragalus gambelianus10 / 14
0.77r95 *sow thistleSonchus oleraceus3 / 142
0.78r96 leafy daisyErigeron foliosus var. foliosus20 / 944
0.79   The bush lupine makes a fabulous display here when it is in full bloom:
0.79r97 bush lupineLupinus excubitus var. hallii30 / 910
0.79b98 *tocaloteCentaurea melitensis99 / 945
0.79r99 angel's giliaGilia angelensis20 / 314
0.82r  (coast live oak, Quercus agrifolia var. agrifolia)
0.82l100 black sageSalvia mellifera20 / 540
0.82r101 strigose lotusLotus strigosus / 33
0.83   Cross drainage
0.86r102 California sagebrushArtemisia californica20 / 547
0.86   Cross small drainage and curve right
0.86l103 *hedge parsleyTorilis nodosa99 / 914
0.87l104 stinking gourdCucurbita foetidissima3 / 28
0.87r105 southern miner's lettuceClaytonia perfoliata ssp. mexicana30 / 327
0.87r106 coast live oakQuercus agrifolia var. agrifolia10 / 942
0.87r107 chaparral beard-tongueKeckiella antirrhinoides var. antirrhinoides2 / 210
0.88   Trail curves left
0.89r  (purple head, Acourtia microcephala)
0.91   (closest California peony, Paeonia californica, so far)
0.91r108 tomcat cloverTrifolium willdenovii / 17
0.94r  (short-winged deerweed, Lotus scoparius var. brevialatus)
0.94r109 San Diego tarweedHemizonia paniculata30 / 58
0.94r110 California buckwheatEriogonum fasciculatum var. foliolosum20 / 551
0.94   Cross small wide drainage
0.95r111 popcorn flowerCryptantha intermedia10 / 127
0.95r112 red maidsCalandrinia ciliata1 / 120
0.97b113 small-head field cloverTrifolium microcephalum / 10
0.97   Leave last of grassland; enter solid chaparral
0.97r114 chamiseAdenostoma fasciculatum50 / 937
0.97r115 *common chickweedStellaria media10 / 127
0.98r116 wild-cucumberMarah macrocarpus var. macrocarpus10 / 444
0.98r117 hollyleaf redberryRhamnus ilicifolia10 / 543
0.98b118 Pacific sanicleSanicula crassicaulis40 / 920
0.98r119 purple everlastingGnaphalium purpureum5 / 15
0.98r120 threadstemPterostegia drymarioides20 / 530
0.99r  Jct. Stevenson Canyon Trail; go right on it; elevation ~1960 feet (597 m).
0.99l  Sign: "Shivela Trail (to left and to right); to Sylvan Meadows Road 0.4 mi (right); to Sierra Elena Road 0.8 mi (left): Stevenson Canyon Trail (forward); to Calle de Suenos Road 0.8 mi"
1.00l121 short-winged deerweedLotus scoparius var. brevialatus20 / 923
1.00l122 Torrey's scrub oakQuercus acutidens5 / 226
1.00l123 poison oakToxicodendron diversilobum30 / 943
1.01r124 foothill needlegrassNassella lepida20 / 921
1.01r125 intermediate sun-cupsCamissonia intermedia / 6
1.01r126 California filagoFilago californica / 21
1.02r127~woolly-fruited lomatiumLomatium dasycarpum ssp. dasycarpum3 / 17
1.02r128 golden yarrowEriophyllum confertiflorum var. confertiflorum20 / 755
1.02r129 prostrate spineflowerChorizanthe procumbens10 / 14
1.02r130 everlasting nest-strawStylocline gnaphaloides / 12
1.02r131 climbing bedstrawGalium nuttallii ssp. nuttallii10 / 930
1.02r132 southern honeysuckleLonicera subspicata var. denudata3 / 340
1.03r133 sapphire woolly-starEriastrum sapphirinum50 / 37
1.04r134 white sageSalvia apiana5 / 538
1.04l135 saw-toothed goldenbushHazardia squarrosa var. grindelioides10 / 335
1.04   Switchback left.
1.04l136 white-flowering currantRibes indecorum8 / 523
1.04r ~(poison sanicle, Sanicula bipinnata)
1.04r137~seashore bentgrassAgrostis pallens10 / 112
1.04r138 goldenrodSolidago californica50 / 535
1.04r139 purple snapdragonAntirrhinum nuttallianum ssp. nuttallianum / 19
1.06l140 *crabgrassDigitaria sanguinalis+1 / 11
1.06   Cross drainage
1.06b141 *sourcloverMelilotus indicus / 24
1.08b142 bristly bird's beakCordylanthus rigidus ssp. setigerus30 / 528
1.08   Cross old fenceline
1.09r143 redberryRhamnus crocea2 / 215
1.09r144 fragrant everlastingGnaphalium canescens ssp. beneolens5 / 323
1.10l145 three spotOsmadenia tenella20 / 115
1.10b146 fringed spineflowerChorizanthe fimbriata var. fimbriata30 / 48
1.11l  Jct. old lower end of alternate trail, now closed.
1.14l  Jct. new lower end of alternate trail; stay right.
1.15l147 bush monkeyflowerMimulus aurantiacus10 / 942
1.20r148~*Mediterranean schismusSchismus barbatus20 / 222
1.22l149 prickly cryptanthaCryptantha muricata / 16
1.25b150 hooked skunkweedNavarretia hamata ssp. hamata99 / 711
1.28r151 canchalaguaCentaurium venustum40 / 515
1.28r152 purple headAcourtia microcephala2 / 219
1.31l153 goldfieldsLasthenia californica3 / 112
1.34   Local high point on trail
1.35l154 yellow pincushionChaenactis glabriuscula var. glabriuscula3 / 113
1.36l  (California chicory, Rafinesquia californica)
1.36l155 slender woolly marblesPsilocarphus tenellus var. tenellus10 / 15
1.36l156 common skullcapScutellaria tuberosa10 / 14
1.36l157 *mouse-ear chickweedCerastium glomeratum / 19
1.36l158 pygmy-weedCrassula connata10 / 128
1.36l159 *Italian thistleCarduus pycnocephalus+1 / 120
1.36l160 Tejon cryptanthaCryptantha microstachys / 6
1.36   Local low point on trail
1.36l161 California peonyPaeonia californica5 / 217
1.36l162 blue wildryeElymus glaucus ssp. glaucus30 / 921
1.36r163 canyon clarkiaClarkia epilobioides5 / 111
1.36r164 California chicoryRafinesquia californica1 / 122
1.36r165 snapdragon campionSilene antirrhina5 / 17
1.36r166 eucryptaEucrypta chrysanthemifolia var. chrysanthemifolia5 / 125
1.37b167 laurel sumacMalosma laurina5 / 542
1.38l  Jct. upper end of alternate trail; stay right
1.38l168 *little horseweedConyza bonariensis1 / 123
1.38r169 toyonHeteromeles arbutifolia5 / 544
1.38b170 San Diego peaLathyrus vestitus var. alefeldii10 / 321
1.38r171 slender madiaMadia gracilis20 / 919
1.40   Trail turns left 90°
1.40r172 California everlastingGnaphalium californicum20 / 943
1.40r173 narrowleaf bedstrawGalium angustifolium ssp. angustifolium3 / 350
1.40b174 grand mountain dandelionAgoseris grandiflora3 / 211
1.40   Fencepost and old fence
1.40r175 California chalk lettuceDudleya pulverulenta ssp. pulverulenta5 / 110
1.40r176 goldback fernPentagramma triangularis ssp. triangularis5 / 224
1.40r177 Bigelow's spike-mossSelaginella bigelovii2 / 219
1.40r178 bird's-foot fernPellaea mucronata var. mucronata3 / 230
1.40r179 caterpillar phaceliaPhacelia cicutaria var. hispida20 / 216
1.40r180 California four o'clockMirabilis californica1 / 123
1.40r181 purple owl's cloverCastilleja exserta ssp. exserta / 13
1.40r  (wild canterbury bells, Phacelia minor)
1.40r182 gray sageSalvia apiana X S. mellifera1 / 15
1.42r183 coffee fernPellaea andromedifolia2 / 222
1.43   Local high point on trail
1.43r184 wide-throated yellow monkeyflowerMimulus brevipes5 / 112
1.43r185 wild canterbury bellsPhacelia minor2 / 121
1.43r186 mustang mintMonardella lanceolata10 / 17
1.43r187 Ramona clarkiaClarkia similis5 / 13
1.44r188 meadow-rueThalictrum fendleri var. polycarpum50 / 56
1.44l189 California bromeBromus carinatus var. carinatus10 / 324
1.44r190 *tumble pigweedAmaranthus albus+1 / 114
1.44r191 witchgrassPanicum capillare5 / 13
1.44   Begin first of three Stevenson Canyon Stream crossings on wooden planks.
1.44r192 *Crete weedHedypnois cretica2 / 120
1.44l  The arroyo willows at each of the next 3 stream crossings are extremely old. Note their very thick trunks and height.
1.44l193 arroyo willowSalix lasiolepis20 / 235
1.44r194 willowherbEpilobium ciliatum ssp. ciliatum1 / 118
1.44   End first Stream crossing
1.44b  Many green 6 inch to 1 foot high baby arroyo willow plants in July 2005, but most were dead in September 2005 and 2 were left on 3/27/06.
1.44r195 *green bentgrassAgrostis viridis5 / 14
1.46   Second Stevenson Canyon Stream crossing
1.46r196 mule fatBaccharis salicifolia2 / 239
1.49r197 slender sunflowerHelianthus gracilentus1 / 114
1.49   Third Stevenson Canyon Stream crossing
1.49l198 sand spikerushEleocharis montevidensis1 / 17
1.49l199 rigid hedge-nettleStachys ajugoides var. rigida3 / 113
1.49l  (sticky cinquefoil, Potentilla glandulosa ssp. glandulosa)
1.49b200 basketbushRhus trilobata1 / 124
1.53l201 *English plantainPlantago lanceolata1 / 119
1.53l202~wild celeryApiastrum angustifolium5 / 113
1.53l203 heartleaf penstemonKeckiella cordifolia5 / 328
1.53l204 giant wild-ryeLeymus condensatus5 / 527
1.54l  Cross through open gate; sign: "Stephenson Canyon Trail (facing other direction)"; stake: "Santa Rosa Plateau Ecological Reserve Boundary".
1.55   Trail curves left 45°
1.55r205 *purple wild radishRaphanus sativus2 / 111
1.57r  Sign: "Harold Davis Hill"
1.59   Large infestation of bull thistle, Cirsium vulgare
1.59l  Sign: End Sylvan Meadows; Private Property Ahead"; elevation ~2200 feet (670 m). Turnaround here and descend the way you came.
1.80r  Jct. upper end of alternate trail; take it to the right.
1.80   Fourth Stevenson Canyon Stream crossing
1.80l  Check for different clover
 r206 coast jepsoniaJepsonia parryi30 / 315
1.82l  (common monkeyflower, Mimulus guttatus)
1.84r207 slender vetchVicia hassei / 6
1.84l208~poison sanicleSanicula bipinnata99 / 92
1.85l209 sticky cinquefoilPotentilla glandulosa ssp. glandulosa1 / 117
1.86l210 long-leaved rushJuncus macrophyllus5 / 16
1.90   Fifth Stevenson Canyon Stream crossing
1.93l211 California oxalisOxalis albicans ssp. californica1 / 14
1.95l212 Parish's purple nightshadeSolanum parishii1 / 120
1.96   Cross first of two small side drainages
1.97   Cross second of two small side drainages
1.97l213 southern Indian pinkSilene laciniata ssp. major2 / 120
2.00l214 triangular-fruit sedgeCarex triquetra1 / 117
2.06r  (An infestation of ~200 soap aloe, Aloe saponaria, was removed in 2005, that probably came from a single plant just 5-11 years earlier.)
2.07   T-jct. with main Stevenson Canyon Trail; go right on it.
2.22   T-jct. with Shivela Trail; go right on it; elevation ~1960 feet (597 m).
2.25   Large bridge; sixth Stevenson Canyon Stream crossing
2.25l215 willow-leaved dockRumex salicifolius var. denticulatus1 / 19
2.26r216 Chinese housesCollinsia heterophylla / 12
2.27r217spspurgeEuphorbia sp.1 / 1 
2.30b218 *darnelLolium temulentum / 4
2.30r219spvetchVicia villosa ssp. varia or V. sativa /  
2.32   Cross small drainage
2.32r220 blue larkspurDelphinium parryi ssp. parryi10 / 114
2.35l  (A huge western sycamore with 5 big trunks)
2.35   Trail curves right 90°
2.45   Trail curves right and briefly goes uphill
2.47   Local high point on trail
2.48   Trail curves left
2.53l221 nodding needlegrassNassella cernua / 18
    Trail is close to Tenaja Road now; trail curves right
2.56   Local low point on trail
2.63l222 *Australian bromeBromus arenarius10 / 14
2.65   Cross seasonally-wet drainage
2.65r223 bicolored everlastingGnaphalium bicolor1 / 134
2.69l  Second patch of jepsonia
2.74   Local low point on trail
2.75   Local high point on trail; second common skullcap, Scutellaria tuberosa location
2.79   Local low point on trail
2.80   Local high point on trail
2.86   Cross seasonally-moist drainage and go uphill
2.90   Local high point on trail
2.92   Trail turns left 90° and crosses bridge over another drainage
2.92b224 common monkeyflowerMimulus guttatus10 / 115
3.02   End Shivela Trail at T-jct. with Sierra Elena Road. Go left; elevation ~1975 feet (600 m).
3.05c225 pit-seed goosefootChenopodium berlandieri3 / 28
3.06   Cross Tenaja Road
3.07   Jct. Fenceline Trail; go left
3.13l226 telegraph weedHeterotheca grandiflora10 / 537
3.18b  *winter vetchVicia villosa ssp. varia+50 / 319
3.23r  (blue elderberry, Sambucus mexicana)
3.33   Cross small drainage from right
3.34l  (Large patch of Italian thistle, Carduus pycnocephalus)
3.36b227 *spring vetchVicia sativa ssp. sativa10 / 16
3.44   Begin short uphill on trail
3.48   Second of two closely-spaced local high points on trail
3.53r228 *Russian thistleSalsola tragus1 / 125
3.55r229 coyote bushBaccharis pilularis1 / 125
3.58r230 *yellow salsifyTragopogon dubius+1 / 113
3.62l231 *Harding grassPhalaris aquatica2 / 12
3.78   Cross wood-plank bridge at drainage
3.83   Pass through open gate; jct. Hidden Valley Parking Lot; cross Tenaja Road to return to trailhead
3.86   End guide back at Sylvan Meadows Parking Area

Comments On Specific Species

Piptatherum miliaceum, Silybum marianum, Digitaria sanguinalis, Carduus pycnocephalus, Amaranthus albus, Tragopogon dubius. These weeds are eliminated when seen, so we hope you do not see any of them. If you do, yank them out!

Vicia villosa ssp. varia. This specimen is not numbered, since it is highly likely that the previous Vicia sp. is this species.

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Copyright © 2004-2006 by Tom Chester and Kay Madore.
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
Updated 4 April 2006.