Plant Guide to S. Trans Preserve Trail, Santa Rosa Plateau

Mile	S	#	id?	Common Name	Latin Name	#here	#all
0.00				Beginning of guide at junction with Hidden Valley Road, heading south, toward the Vernal Pool Trail; elevation ~1885 feet (575 m).
0.00	b	1		*jointed goatgrass	Aegilops cylindrica	20 / 1	4
0.00	b	2		*wild oats	Avena fatua	99 / 9	26
0.00	b	3		*foxtail barley	Hordeum murinum ssp. leporinum	99 / 9	14
0.00	b	4		*Italian rye-grass	Lolium multiflorum	99 / 9	18
0.00	b	5		*short-fruited filaree	Erodium brachycarpum	99 / 9	14
0.00	b	6		*shortpod mustard	Hirschfeldia incana	50 / 9	51
0.00	b	7		graceful tarplant	Holocarpha virgata ssp. elongata	99 / 9	15
0.00	r	8		vinegar weed	Trichostema lanceolatum	50 / 9	15
0.00	b	9		*ripgut brome	Bromus diandrus	/	52
0.00	b	10		*California burclover	Medicago polymorpha	99 / 9	40
0.00	b	11		*soft chess	Bromus hordeaceus	99 / 9	40
0.00	r	12		*little horseweed	Conyza bonariensis	1 / 1	16
0.00	r	13		*sow thistle	Sonchus oleraceus	2 / 2	42
0.00	r			Sign: "Trans Preserve Trail (ahead and back); To Vernal Pools 1 mi; Hidden Valley Road (left-right)"
0.00	r	14		*windmill pink	Silene gallica	/	33
0.00	r	15		dove weed	Eremocarpus setigerus	99 / 9	25
0.00	r	16		dwarf lupine	Lupinus bicolor	/	29
0.00	b	17		purple needlegrass	Nassella pulchra	/	20
0.00	r	18		*hairy rattail fescue	Vulpia myuros var. hirsuta	/	19
0.00	b	19		blue-eyed grass	Sisyrinchium bellum	99 / 9	19
0.00	b	20		*smooth cat's ear	Hypochaeris glabra	/	35
0.00	r	21		*narrowleaf filago	Filago gallica	/	45
0.00	l	22		purple sanicle	Sanicula bipinnatifida	50 / 9	11
0.01	l	23		*prickly lettuce	Lactuca serriola	2 / 2	42
0.02	r	24		pin-point clover	Trifolium gracilentum var. gracilentum	/	8
0.02	r	25		*scarlet pimpernel	Anagallis arvensis	/	33
0.03	r	26		*mouse-ear chickweed	Cerastium glomeratum	/	19
0.03	r	27		tawny popcorn flower	Plagiobothrys fulvus	/	3
	r	28		California filago	Filago californica	/	21
0.06				Trail jags right.
0.06	r	29		checkerbloom	Sidalcea malviflora ssp. sparsifolia	50 / 9	25
0.07	r	30		leafy daisy	Erigeron foliosus var. foliosus	10 / 9	44
0.07	r	31		purple clarkia	Clarkia purpurea ssp. quadrivulnera	99 / 9	26
0.08	b	32		*red brome	Bromus madritensis ssp. rubens	/	53
0.08	l			(San Diego wreathplant, Stephanomeria diegensis)
0.09				Trail bends right slightly
0.09	l	33		western buttercup	Ranunculus occidentalis	50 / 9	6
0.09	r	34		sharp-toothed sanicle	Sanicula arguta	10 / 5	16
0.10	l	35		Engelmann oak	Quercus engelmannii	10 / 9	23
0.10	l	36		southern miner's lettuce	Claytonia perfoliata ssp. mexicana	50 / 5	25
0.10				Trail bends left.
0.10	l	37		common bedstraw	Galium aparine	50 / 5	38
0.10	l	38		poison oak	Toxicodendron diversilobum	99 / 9	43
0.10	l			(wild-cucumber, Marah macrocarpus var. macrocarpus)
0.10	l	39		white-flowering currant	Ribes indecorum	1 / 1	23
0.10	r	40		horseweed	Conyza canadensis	/	38
0.10	b	41		fragrant everlasting	Gnaphalium canescens ssp. beneolens	1 / 1	23
0.10	l	42		*horehound	Marrubium vulgare	1 / 1	32
0.10	l	43		*hedge parsley	Torilis nodosa	20 / 5	14
0.11	r	44		slender madia	Madia gracilis	10 / 3	19
0.11	b	45		splendid mariposa lily	Calochortus splendens	/	20
0.11				Trail begins to turn right 90°
0.11	l	46		coast live oak	Quercus agrifolia var. agrifolia	10 / 9	42
0.11	r	47		blue dicks	Dichelostemma capitatum ssp. capitatum	50 / 9	46
0.11	l	48		*bull thistle	Cirsium vulgare+	4 / 2	20
		49		big squirreltail	Elymus multisetus+	/	7
0.13	b	50		*winter vetch	Vicia villosa ssp. varia	20 / 1	19
0.13				Local high point on trail; elevation 1960 feet (597 m)
0.13	l	51		wild-cucumber	Marah macrocarpus var. macrocarpus	/	44
0.13	b	52		*Darnel	Lolium temulentum	40 / 9	4
0.13	l	53		California brome	Bromus carinatus var. carinatus	/	24
0.13				Trail bends left 90°
0.13	l	54	ssp	milk maids	Cardamine californica var. californica	10 / 2	6
0.13	l	55		climbing bedstraw	Galium nuttallii ssp. nuttallii	5 / 5	30
0.15	l	56		one-sided bluegrass	Poa secunda ssp. secunda	/	23
0.15	l			Check for different clover.
0.15	r	57		*tocalote	Centaurea melitensis	/	45
0.15	l	58		*cut-leaved geranium	Geranium dissectum	20 / 2	13
0.15	r	59		*common groundsel	Senecio vulgaris	10 / 1	18
	l			(blue larkspur, Delphinium parryi ssp. parryi)
0.15	l	60		warty spurge	Euphorbia spathulata	10 / 1	4
0.15	l	61		Spanish clover	Lotus purshianus var. purshianus	20 / 2	31
0.16	l	62		grand mountain dandelion	Agoseris grandiflora	1 / 1	11
0.16	l	63		soap plant	Chlorogalum pomeridianum var. pomeridianum	10 / 9	19
0.16				(Check for rusty-haired popcorn flower, Plagiobothrys nothofulvus.)
0.16	l	64		Indian milkweed	Asclepias eriocarpa	5 / 2	18
0.16	r			(laurel sumac, Malosma laurina)
0.17				"Double trail" section, with the upper portion used when the lower portion is a mudpit
0.18	l	65		California-aster	Lessingia filaginifolia var. filaginifolia	33 / 9	51
0.18	l	66		California everlasting	Gnaphalium californicum	/	43
0.19	l	67		johnny jump-up	Viola pedunculata	30 / 5	16
0.19	r	68		red maids	Calandrinia ciliata	/	17
0.20	b	69		silver puffs	Uropappus lindleyi+	/	26
0.20	b	70		brown microseris	Stebbinsoseris heterocarpa	/	3
0.20	l	71		fringe-pod	Thysanocarpus curvipes	50 / 4	9
0.21	l	72		slender cottonweed	Micropus californicus var. californicus	1 / 1	7
0.21	l	73		southern California morning-glory	Calystegia macrostegia ssp. arida+	2 / 2	9
0.21	l			(blue elderberry, Sambucus mexicana)
0.21		74		blue larkspur	Delphinium parryi ssp. parryi	5 / 3	14
0.21	l			Bench with back
0.22	l	75		*rattail fescue	Vulpia myuros var. myuros	/	20
0.22	l			(chocolate lily, Fritillaria biflora var. biflora)
0.24	l	76		June grass	Koeleria macrantha	1 / 1	2
	l	77		Douglas' microseris	Microseris douglasii ssp. douglasii	/	1
0.26	r	78		chocolate lily	Fritillaria biflora var. biflora+	5 / 2	5
0.27	r	79		*prickly sow thistle	Sonchus asper ssp. asper	1 / 1	30
0.27				Local low point on trail; elevation ~1925 feet (585 m); trail gradually turns left 90° and begins short steep uphill.
0.28	b	80		California poppy	Eschscholzia californica	2 / 1	29
0.29	l	81		bajada lupine	Lupinus concinnus	10 / 2	11
0.29	l	82		small-flowered fiddleneck	Amsinckia menziesii var. menziesii	10 / 1	8
0.30	l	83		Jepson's blue wildrye	Elymus glaucus ssp. jepsonii+	1 / 1	12
0.31	l	84		*olive	Olea europaea	1 / 1	10
0.32	l			First of two good patches of milk maids, Cardamine californica
0.32	b	85		California sweet-cicely	Osmorhiza brachypoda	10 / 2	6
0.32	l	86		blue wildrye	Elymus glaucus ssp. glaucus+	5 / 2	21
0.32	b	87		goldenrod	Solidago californica	10 / 2	35
0.32	b	88		sticky cinquefoil	Potentilla glandulosa ssp. glandulosa	5 / 1	17
0.32	r	89		giant wild-rye	Leymus condensatus	1 / 1	27
0.32	l	90		hollyleaf redberry	Rhamnus ilicifolia	2 / 2	43
0.32				Trail turns right 90°
0.33	b	91		eucrypta	Eucrypta chrysanthemifolia var. chrysanthemifolia	10 / 2	25
0.33	l	92		*hedge mustard	Sisymbrium officinale+	30 / 9	20
0.33				Cross very small drainage.
0.33	b	93		hoary bowlesia	Bowlesia incana	30 / 1	3
0.33	b	94		blue elderberry	Sambucus mexicana	2 / 1	48
0.33	r	95		*common chickweed	Stellaria media	/	25
0.33	l	96		fiesta flower	Pholistoma auritum var. auritum	3 / 1	11
0.33	l			Second good patch of milk maids, Cardamine californica
0.33	l	97		Pacific sanicle	Sanicula crassicaulis	30 / 9	20
0.33	l	98		tree clover	Trifolium ciliolatum	/	12
0.34	b	99		long-spurred plectritis	Plectritis ciliosa ssp. insignis	10 / 1	3
0.34		100		*wall bedstraw	Galium parisiense	/	7
0.34	l	101	sp	tiny clover	Trifolium sp.	/
0.34	l	102		slender vetch	Vicia hassei+	5 / 2	6
0.34	r			Western buttercup, Ranunculus occidentalis, with 8-9 petals, in midst of sea of plants with 5 petals
0.34	l			(woodland star, Lithophragma affine)
0.34	b	103		American vetch	Vicia americana var. americana	1 / 1	8
0.34				Trail curves left with a short steep uphill, then right and a gentle uphill; begin long stretch of trail with no new taxa
0.39				Local high point; trail continues to mostly ascend gently
	b	104		earth brodiaea	Brodiaea terrestris ssp. kernensis	/	7
	r			(bush lupine, Lupinus excubitus var. hallii)
0.49				Trail jags left.
0.49	l	105		*white-stemmed filaree	Erodium moschatum	/	20
0.49	l	106		California lotus	Lotus wrangelianus	5 / 1	4
0.49	l	107		tomcat clover	Trifolium willdenovii	/	17
0.49				(caterpillar phacelia, Phacelia cicutaria var. hispida)
0.49				Local high point; trail curves right.
0.49				Former field of fringe-pod in 1996-2001 is now a field of non-native grasses.
0.53	l	108		California bee plant	Scrophularia californica ssp. floribunda	3 / 1	17
0.54	l			(San Diego pea, Lathyrus vestitus var. alefeldii)
0.57	l	109		purple head	Acourtia microcephala	/	19
0.57	r	110		California fuchsia	Epilobium canum ssp. canum	/	21
0.59				Trail bends right slightly
0.59	l	111		San Diego birdsfoot lotus	Lotus hamatus	/	24
0.59	l	112		rattlesnake weed	Daucus pusillus	/	29
	l	113		nodding needlegrass	Nassella cernua	/	17
0.67	r			(broom baccharis, Baccharis sarothroides)
0.68				Trail turns left 90°
0.70	b	114		San Diego wreathplant	Stephanomeria diegensis	2 / 1	23
0.75	r	115		western ragweed	Ambrosia psilostachya	10 / 1	38
0.78				End trail at junction with Vernal Pool Trail; elevation 2060 feet (628 m)

http://tchester.org/srp/plants/guides/s_tp.html
Updated 4 March 2006.