Plant Guide to Adobe Loop Trail, Santa Rosa Plateau

Mile	s	#	id?	Common Name	Latin Name	#here	#all
0.00				Begin the loop at the south entrance, immediately south of the largest Adobe / Porta-Potty / parking lot. Sign: "Adobe Loop Trail / Punta Mesa Trail; to Monument Hill Road 2.4 mi; to Adobe Loop Jct. 0.4 mi"; elevation 1840 feet (561 m)
0.00	b	1		*California burclover	Medicago polymorpha	99 / 9	40
0.00	b	2		*short-fruited filaree	Erodium brachycarpum	20 / 9	14
0.00	l			(bull thistle, Cirsium vulgare)
0.00	b	3		*shortpod mustard	Hirschfeldia incana	99 / 9	51
0.00	b	4		*redstem filaree	Erodium cicutarium	99 / 9	55
0.00	b	5		*soft chess	Bromus hordeaceus	99 / 9	40
0.00	r	6		*hairy rattail fescue	Vulpia myuros var. hirsuta	99 / 9	19
0.00	b	7		*Italian rye-grass	Lolium multiflorum	99 / 9	18
0.00	b	8		*wild oats	Avena fatua	99 / 9	26
0.00	r	9		*white-stemmed filaree	Erodium moschatum	30 / 2	20
0.00	b	10		*foxtail barley	Hordeum murinum ssp. glaucum	30 / 3	13
0.00	c	11		*narrowleaf filago	Filago gallica	99 / 9	45
0.00	b	12		*ripgut brome	Bromus diandrus	99 / 9	52
0.00	l	13		*prickly sow thistle	Sonchus asper ssp. asper	20 / 7	30
0.00	r	14		purple needlegrass	Nassella pulchra	50 / 9	20
0.00		15		California everlasting	Gnaphalium californicum	20 / 9	43
0.00	r	16		horseweed	Conyza canadensis	5 / 3	37
0.00	l	17		*horehound	Marrubium vulgare	50 / 9	32
0.00	r	18		coast live oak	Quercus agrifolia var. agrifolia	20 / 9	42
0.00	r	19		*tall fescue	Festuca arundinacea	1 / 1	3
0.00	b	20		*prickly lettuce	Lactuca serriola	99 / 9	42
0.00				Cross through opening in fence missing its gate.
0.00	c	21		*shepherd's purse	Capsella bursa-pastoris	30 / 2	10
0.00	r	22		*cheeseweed	Malva parviflora	20 / 2	17
0.01	r	23		*sow thistle	Sonchus oleraceus	10 / 5	42
0.02	c	24		*knotweed	Polygonum arenastrum	20 / 5	20
0.02	r			(stinking gourd, Cucurbita foetidissima)
0.02	b	25		*curly dock	Rumex crispus	20 / 9	23
0.03	r			(common fiddleneck, Amsinckia menziesii var. intermedia)
0.03	c	26		red maids	Calandrinia ciliata	/	17
0.03				Cross through open gate in fence
0.04	r	27		graceful tarplant	Holocarpha virgata ssp. elongata	50 / 9	15
0.05	l	28		hollyleaf redberry	Rhamnus ilicifolia	5 / 3	43
0.05	r	29		blue-eyed grass	Sisyrinchium bellum	20 / 9	19
0.05	l			Beware the bee's nest at the base of the hollyleaf redberry in 2002 and 2003!
0.05	l			New shed in 2004
0.06	l			(California buckwheat, Eriogonum fasciculatum var. foliolosum)
0.06	l	30		*windmill pink	Silene gallica	/	33
0.07	l	31		purple sanicle	Sanicula bipinnatifida	50 / 9	11
0.07	l	32		blue dicks	Dichelostemma capitatum ssp. capitatum	50 / 9	46
0.07	l	33		checkerbloom	Sidalcea malviflora ssp. sparsifolia	50 / 9	25
0.07	l			The Earl W. Lathrop Bench.
0.09	l	34		*slender wild oats	Avena barbata	10 / 1	40
0.11				Cross drainage
0.12	r	35		purple clarkia	Clarkia purpurea ssp. quadrivulnera	99 / 9	26
0.13	r	36		southern miner's lettuce	Claytonia perfoliata ssp. mexicana	40 / 9	25
0.13	r	37		western buttercup	Ranunculus occidentalis	99 / 9	6
0.14	r	38		dwarf lupine	Lupinus bicolor	50 / 9	29
0.14	c	39		shining peppergrass	Lepidium nitidum var. nitidum	/	6
0.14	b	40		California-aster	Lessingia filaginifolia var. filaginifolia	30 / 9	51
0.14	b	41		*smooth cat's ear	Hypochaeris glabra	99 / 9	35
0.14	b			Fenceposts
0.14	l	42		Engelmann oak	Quercus engelmannii	1 / 1	23
0.15	l	43		climbing bedstraw	Galium nuttallii ssp. nuttallii	10 / 9	30
0.15	b	44		*hedge parsley	Torilis nodosa	99 / 9	14
0.15	r	45		slender madia	Madia gracilis	50 / 9	19
0.15	r	46		sticky cinquefoil	Potentilla glandulosa ssp. glandulosa	10 / 2	17
0.15	r	47		southern honeysuckle	Lonicera subspicata var. denudata	20 / 9	40
0.15	r	48		coast-range melic	Melica imperfecta	50 / 9	43
0.15	b	49		toyon	Heteromeles arbutifolia	3 / 3	44
0.15	r	50		common bedstraw	Galium aparine	99 / 9	38
0.15	b	51		poison oak	Toxicodendron diversilobum	99 / 9	43
0.15	r	52		laurel sumac	Malosma laurina	10 / 3	42
0.15	b	53		California brome	Bromus carinatus var. carinatus	5 / 2	24
0.15	r			(heartleaf penstemon, Keckiella cordifolia)
0.15				Cross wooded drainage
0.15	b	54		California sweet-cicely	Osmorhiza brachypoda	50 / 9	6
0.15	r	55		blue wildrye	Elymus glaucus ssp. glaucus	40 / 9	21
0.15	r	56		*cut-leaved geranium	Geranium dissectum	50 / 4	13
0.15	r	57		*weak blue grass	Poa infirma	30 / 2	6
0.16	r	58		*common groundsel	Senecio vulgaris	2 / 1	18
0.16	r			Either an unusual coast live oak, or possibly a hybrid with interior live oak, Quercus agrifolia var. agrifolia X Quercus wislizeni var. frutescens+
0.16	l	59		leafy daisy	Erigeron foliosus var. foliosus	4 / 3	44
0.16	l	60		fragrant everlasting	Gnaphalium canescens ssp. beneolens	2 / 2	23
0.16	r	61		blue larkspur	Delphinium parryi ssp. parryi	20 / 2	14
0.17	l			A white-flowered "blue-eyed grass", Sisyrinchium bellum
0.17	b	62		dove weed	Eremocarpus setigerus	10 / 2	25
0.17	r	63		shooting star	Dodecatheon clevelandii ssp. clevelandii	50 / 5	11
0.17	r			Beautiful field of shooting stars.
0.17	l			(American vetch, Vicia americana var. americana; white-flowering currant, Ribes indecorum)
0.17	b	64		slender cottonweed	Micropus californicus var. californicus	99 / 5	7
0.17	r	65		California lotus	Lotus wrangelianus	99 / 5	4
0.17	l	66		Gambel's dwarf milk-vetch	Astragalus gambelianus	40 / 2	4
0.17	l	67		vinegar weed	Trichostema lanceolatum	10 / 2	15
0.17	b	68		*nit grass	Gastridium ventricosum	99 / 9	26
0.17	b	69		*red brome	Bromus madritensis ssp. rubens	/	53
0.17	l	70		*goldentop	Lamarckia aurea	10 / 1	24
0.18	l			(San Diego wreathplant, Stephanomeria diegensis)
0.19	r	71		johnny jump-up	Viola pedunculata	20 / 4	16
0.19	l	72		California buckwheat	Eriogonum fasciculatum var. foliolosum	3 / 2	51
0.19	r	73		California plantain	Plantago erecta	99 / 9	13
0.19	r	74		earth brodiaea	Brodiaea terrestris ssp. kernensis	10 / 1	7
0.19	r			Nice field of needlegrass.
0.21	b	75		*mouse-ear chickweed	Cerastium glomeratum	50 / 9	19
0.21	r			(Italian thistle, Carduus pycnocephalus)
0.21	r			(soap plant, Chlorogalum pomeridianum var. pomeridianum)
0.21	r	76		three spot	Osmadenia tenella	30 / 1	15
0.22	r	77		*sand spurrey	Spergularia bocconei	20 / 2	14
0.23	r	78		coast jepsonia	Jepsonia parryi	30 / 2	15
0.23	r	79		*barbgrass	Hainardia cylindrica	40 / 2	1
0.24	l	80		deerweed	Lotus scoparius var. scoparius	40 / 5	29
0.24	b	81		Torrey's scrub oak	Quercus acutidens	50 / 9	26
0.24	r	82		wild-cucumber	Marah macrocarpus var. macrocarpus	4 / 4	44
0.24	r	83		heartleaf penstemon	Keckiella cordifolia	10 / 3	28
0.24	r	84		splendid mariposa lily	Calochortus splendens	10 / 9	20
0.24	r	85		soap plant	Chlorogalum pomeridianum var. pomeridianum	50 / 9	19
0.24	r	86		white-flowering currant	Ribes indecorum	1 / 1	22
0.24	r	87		Pacific sanicle	Sanicula crassicaulis	30 / 9	20
0.24	r	88		holly-leaf navarretia	Navarretia atractyloides	50 / 9	9
0.24	r	89		*tiny bedstraw	Galium murale	99 / 9	2
0.24	r	90		California sagebrush	Artemisia californica	50 / 9	47
0.25	b	91		bristly bird's beak	Cordylanthus rigidus ssp. setigerus	50 / 9	28
0.25	r			(coyote bush, Baccharis pilularis)
0.25	r	92		chamise	Adenostoma fasciculatum	20 / 9	37
0.25	r	93		golden yarrow	Eriophyllum confertiflorum var. confertiflorum	20 / 9	55
0.25	r	94		saw-toothed goldenbush	Hazardia squarrosa var. grindelioides	3 / 2	35
0.25	r	95		Parish's purple nightshade	Solanum parishii	20 / 4	20
0.25	b	96		San Diego pea	Lathyrus vestitus var. alefeldii	4 / 3	21
0.25	r			(meadow-rue, Thalictrum fendleri var. polycarpum)
0.26	r	97		purple head	Acourtia microcephala	1 / 1	19
0.26	l	98		black sage	Salvia mellifera	10 / 5	40
0.26	r	99		slender vetch	Vicia hassei	10 / 2	6
0.26	r	100		narrowleaf bedstraw	Galium angustifolium ssp. angustifolium	2 / 2	50
0.26	r	101		southern foothill penstemon	Penstemon heterophyllus var. australis	20 / 2	2
0.26	r	102		white sage	Salvia apiana	10 / 5	38
0.27				(goldback fern, Pentagramma triangularis ssp. triangularis)
0.27	r	103		pygmy-weed	Crassula connata	99 / 9	28
0.27	r	104		goldfields	Lasthenia californica	2 / 1	12
0.27	r	105		toad rush	Juncus bufonius var. bufonius	/	14
0.28	r			Corestone eroding out of the Woodson Mountain granodiorite
0.30	r	106		western lady's mantle	Aphanes occidentalis	30 / 2	3
0.32	b	107		San Diego birdsfoot lotus	Lotus hamatus	30 / 2	24
0.32	r	108		goldenstar	Bloomeria crocea	2 / 2	12
0.34	l	109		*tocalote	Centaurea melitensis	20 / 9	45
0.34	c	110		*pineapple weed	Chamomilla suaveolens	1 / 1	19
0.34	r	111		slender wreathplant	Stephanomeria exigua ssp. deanei	2 / 2	14
0.34	r	112		San Diego mountain mahogany	Cercocarpus minutiflorus	4 / 2	12
0.35	r	113		*common chickweed (no petals in first location!)	Stellaria media+	30 / 2	25
0.35	l	114		*olive	Olea europaea	4 / 4	10
0.35	r	115		Eastwood manzanita	Arctostaphylos glandulosa ssp. zacaensis	2 / 1	11
0.37	b	116		bush monkeyflower	Mimulus aurantiacus	10 / 7	42
0.39	l	117		*scarlet pimpernel	Anagallis arvensis	50 / 9	33
0.39	r	118		long-leaf plantain	Plantago elongata	99 / 2	2
0.40	r	119		eucrypta	Eucrypta chrysanthemifolia var. chrysanthemifolia	20 / 3	25
0.41	b	120		rusty-haired popcorn flower	Plagiobothrys nothofulvus	40 / 3	13
0.42	l	121		*hedge mustard	Sisymbrium officinale	50 / 4	20
0.42	r			(Woodrat's nest in tree)
0.43	b	122		Pomona locoweed	Astragalus pomonensis	2 / 1	11
0.43	l	123		canchalagua	Centaurium venustum	3 / 1	15
0.43	r	124	~	canyon clarkia	Clarkia epilobioides	10 / 1	11
0.43	b	125		rattlesnake weed	Daucus pusillus	40 / 9	29
0.43	l			(white everlasting, Gnaphalium canescens ssp. microcephalum)
0.43	l	126		short-winged deerweed	Lotus scoparius var. brevialatus	2 / 1	23
0.44				Jct. with Punta Mesa Trail; go left; elevation 1800 feet (549 m); sign: "Adobe Loop / Punta Mesa Trail"; trail now descends
0.44	r	127		strigose lotus	Lotus strigosus	2 / 1	35
0.44	r	128		southern Indian pink	Silene laciniata ssp. major	/	20
0.45	l	129		Spanish clover	Lotus purshianus var. purshianus	/	31
0.45	l	130		Chinese houses	Collinsia heterophylla+	50 / 2	14
0.45	r	131		giant wild-rye	Leymus condensatus	2 / 2	27
0.45	b			common chickweed, Stellaria media, with petals
0.47	l	132		basketbush	Rhus trilobata	1 / 1	24
0.52	r			(Beehive in tree)
0.52	r	133		telegraph weed	Heterotheca grandiflora	/	37
0.53	l	134		tree clover	Trifolium ciliolatum	10 / 1	12
0.54	l	135	~	*yellow salsify	Tragopogon dubius+	1 / 1	13
0.54	r	136		western sycamore	Platanus racemosa	1 / 1	27
0.54	b	137		*bull thistle	Cirsium vulgare	30 / 9	19
0.55				Trail turns left 90°
0.55	r	138		western ragweed	Ambrosia psilostachya	50 / 9	37
0.56	l	139		*sourclover	Melilotus indicus	5 / 1	24
0.56	l			Field of autumn willowweed, Epilobium brachycarpum
0.56	l	140		autumn willowweed	Epilobium brachycarpum	10 / 1	4
0.56	r	141		arroyo willow	Salix lasiolepis	2 / 2	35
0.57	b	142		*Himalaya blackberry	Rubus discolor	10 / 3	3
0.58				Cross drainage; elevation 1760 feet (536 m); trail curves left
0.58	l	143		rigid hedge-nettle	Stachys ajugoides var. rigida	5 / 2	13
0.59	b	144		California poppy	Eschscholzia californica	10 / 2	29
0.60	r	145		creeping wild rye	Leymus triticoides	20 / 2	12
0.60	r			Field of slender madia, Madia gracilis
0.60	l	146		*field hedge-parsley	Torilis arvensis	50 / 1	6
0.60	r			(shining willow, Salix lucida ssp. lasiandra)
0.60	r	147		saltgrass	Distichlis spicata	20 / 2	17
0.60				Cross very small drainage
0.61	c	148		Mexican rush	Juncus mexicanus	10 / 3	16
0.62	r			Cross just above head of drainage
0.62		149		*fennel	Foeniculum vulgare+	1 / 1	13
0.66	l	150		blue elderberry	Sambucus mexicana	2 / 2	48
0.66	r			(hybrid wild-rye, Leymus Xmultiflorus = L. condensatus X L. triticoides)
0.67	r			(red willow, Salix laevigata+)
0.69	r			(In drainage: Pacific rush, Juncus effusus var. pacificus; wrinkled rush, Juncus rugulosus; sand spikerush, Eleocharis montevidensis; cocklebur, Xanthium strumarium; spike primrose, Epilobium densiflorum; narrow-leaf milkweed, Asclepias fascicularis; Emory's baccharis, Baccharis emoryi; mule fat, Baccharis salicifolia; water cress, Rorippa nasturtium-aquaticum)
0.69	r			(deergrass, Muhlenbergia rigens)
0.70	l			Sign: "Trail Closed" (for path leading to Reserve Resource Manager's House)
0.72	r			(pecan, Carya illinoensis)
0.72	r	151		*dallis grass	Paspalum dilatatum	1 / 1	10
0.73	l	152		Indian milkweed	Asclepias eriocarpa	10 / 2	18
0.73	r			(bristly ox-tongue, Picris echioides)
0.73				Enter riparian woodland.
0.76	r			Sign: "When Rock and Water Meet" (tenaja); go to the tenaja for the next two species
0.76	r	153		panicled bulrush	Scirpus microcarpus	30 / 2	2
0.76	r	154		*grass poly	Lythrum hyssopifolia	5 / 1	15
0.79	l			Red bench
0.81	l			Virginia C. House Bench
0.82				Begin bridge over Ranch Creek
0.82	l	155		narrow-leaf milkweed	Asclepias fascicularis	5 / 1	8
0.82	l	156		sand spikerush	Eleocharis montevidensis	10 / 1	7
0.82	l	157		Pacific rush	Juncus effusus var. pacificus	1 / 1	4
0.82	l	158		*English plantain	Plantago lanceolata	1 / 1	19
0.82	b	159		*spearmint	Mentha spicata var. spicata	10 / 1	4
0.82	l	160		water cress	Rorippa nasturtium-aquaticum	2 / 1	11
0.82	l	161		Hooker's evening-primrose	Oenothera elata ssp. hirsutissima+	2 / 1	10
0.82	l			(giant chain fern, Woodwardia fimbriata)
0.82	l	162		scarlet monkeyflower	Mimulus cardinalis	2 / 1	15
0.82				End bridge
0.82	r	163		clustered field sedge	Carex praegracilis	3 / 2	9
0.83				Trail turns left 90°
0.83	l	164		*little horseweed	Conyza bonariensis	1 / 1	16
0.85	l			(greater periwinkle, Vinca major, on far bank)
0.87	l	165		Vasey's prickly-pear	Opuntia vaseyi	1 / 1	24
0.89	l			Sign: "Sensitive wetland area. Do not enter".
0.89				Trail jogs right. Note granary branch on ground; it was hanging just above your head over the trail until 2006
0.90	l	166		*orchard-grass	Dactylis glomerata	20 / 2	3
0.90	l	167		*whorled dock	Rumex conglomeratus	1 / 1	11
0.95				End Adobe Loop Trail at jct. with Lomas Trail; elevation 1840 feet (561 m)

http://tchester.org/srp/plants/guides/adobe_loop.html
Updated 28 April 2006.