Plant Guide To North Gate to Temecula Gorge, Santa Margarita Ecological Reserve

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

Some of the identifications below were based on dead plant remnants from the previous year, due to the drought in 2002. This trail has still not yet been done in the spring in a normal-rainfall year.
Introduction and Explanation of Plant Trail Guides
Introduction
Highlights of This Trail
Plant Communities and Floristics
Fieldwork Dates and Summary of List Changes With Time
Botanical Trip Reports
The Plant Guide
Comments On Specific Species
Introduction

(Introduction to be supplied.) For general information, see Santa Margarita Ecological Reserve.
Note that SMER is not open to the public except via pre-arranged tour.
Highlights of This Trail

Some of the botanical highlights of this trail are:

Plant Communities and Floristics

(info to be supplied.)
Number of Unique Taxa On This Trail

The following histogram gives the number of trails in my database that contain each taxon on this trail. I had 75 trails in my database when this histogram was made; 4 of those trails, including this one, are at the Santa Margarita Ecological Reserve. A number of "1" means the taxon has only been found on this trail among the trails in my database; numbers of "4" or smaller may indicate taxa found only at the Santa Margarita Ecological Reserve.

Number of Trails
Containing A Taxon Number Of Taxa
On This Trail % of Taxa
On This Trail
1 0 0%
2 4 3%
3 5 4%
4 2 2%
5 2 2%

1-5 13 11%
6-10 19 17%
11-15 27 23%
16-20 13 11%
21-25 15 13%
26-30 8 7%
31-35 9 8%
36-40 9 8%
41-45 2 2%
Total Taxa 115 100%

I found 12 additional species not in the above table, since they have not been identified yet. The unidentified ones are marked with ? or sp in the id? column in the guide, and do not have any number given in the #all column. One additional taxon, Lepidium virginicum, will not be included in the above table until its subspecies is identified.
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 Date Visit # # taxa # "?" # "sp" # "~" # "ssp"
3/31/2002 1 96 15
4/25/2002 2 99 12
4/27/2002 3 102 12
6/3/2002 4 112 11 1
6/9/2002 5 118 10 0
12/22/2003 6 125 4 8 1 1
7/9/2004 7 127 4 7 3 1

Prior to 12/22/03, the unknowns were not broken down into categories.
Botanical Trip Reports

9 July 2004
The Plant Guide

Version for printing, without lines and other text on this page (5 pages)

mile s # id Common Name Latin Name #here #all
0.00 North entrance gate; elevation 1180 feet (360 m)
0.00 l 1 *ripgut brome Bromus diandrus / 38
0.00 l 2 *soft chess Bromus hordeaceus / 28
0.00 b 3 *shortpod mustard Hirschfeldia incana 99 / 9 40
0.00 l 4 *Russian thistle Salsola tragus / 23
0.00 5 *white-stemmed filaree Erodium moschatum / 12
0.00 b 6 *tocalote Centaurea melitensis 99 / 9 34
0.00 7 *red brome Bromus madritensis ssp. rubens 99 / 9 40
0.00 r 8 saw-toothed goldenbush Hazardia squarrosa var. grindelioides / 28
0.00 b 9 white sage Salvia apiana 30 / 9 30
0.00 r 10 *narrowleaf filago Filago gallica 99 / 9 32
0.00 r 11 short-winged deerweed Lotus scoparius var. brevialatus 30 / 9 15
0.00 12 ssp *foxtail barley Hordeum murinum ssp. leporinum / 14
0.00 r 13 *creeping Australian saltbush Atriplex semibaccata 10 / 5 10
0.00 l 14 California buckwheat Eriogonum fasciculatum var. polifolium 20 / 9 12
0.00 15 *slender wild oats Avena barbata / 25
0.00 16 *wild oats Avena fatua / 16
0.00 17 white everlasting Gnaphalium canescens ssp. microcephalum 20 / 9 31
0.00 r 18 California-aster Lessingia filaginifolia var. filaginifolia 20 / 9 40
0.00 r 19 slender tarweed Hemizonia fasciculata 50 / 9 10
0.00 r sp (Eucalyptus sp.)
0.00 20 *little horseweed Conyza bonariensis / 10
0.00 b 21 California sagebrush Artemisia californica 30 / 9 34
0.00 r 22 narrowleaf bedstraw Galium angustifolium ssp. angustifolium 20 / 9 41
0.01 r 23 California everlasting Gnaphalium californicum / 28
0.01 r 24 sp Clarkia Clarkia sp. /
0.02 r 25 heartleaf penstemon Keckiella cordifolia / 21
0.02 r 26 *goldentop Lamarckia aurea 20 / 2 12
0.02 r Jct. road.
0.04 l 27 sp Pacific? sanicle Sanicula crassicaulis? 1 / 1
0.04 l 28 hollyleaf redberry Rhamnus ilicifolia 10 / 9 34
0.04 29 California dodder Cuscuta californica var. californica / 12
0.05 r 30 sp Eucalyptus Eucalyptus sp 1 / 1
0.05 l 31 telegraph weed Heterotheca grandiflora 30 / 9 23
0.05 l 32 cocklebur Xanthium strumarium 10 / 1 10
0.05 33 *scarlet pimpernel Anagallis arvensis / 17
0.05 l 34 mule fat Baccharis salicifolia 10 / 3 31
0.05 35 *nit grass Gastridium ventricosum / 15
0.06 b Fire hydrants
0.06 r 36 blue elderberry Sambucus mexicana⁺ 1 / 1 38
0.06 r 37 *tree tobacco Nicotiana glauca 1 / 1 17
0.09 b 38 San Diego wreathplant Stephanomeria diegensis 30 / 5 15
0.09 l (laurel sumac, Malosma laurina)
0.10 39 San Diego morning-glory Calystegia macrostegia ssp. tenuifolia 20 / 5 16
0.12 l Jct. Via Novilla.
0.14 l 40 coast live oak Quercus agrifolia var. agrifolia⁺ 2 / 2 33
0.15 l Jct. entrance for Via Novilla coming from south.
0.18 l Short side road to San Diego Aqueduct pipeline service point.
0.19 b 41 *prickly lettuce Lactuca serriola 10 / 9 25
0.20 l Jct. North Rim Trail; elevation 1150 feet (350 m). See separate field guide for that trail.
0.21 Short side road to San Diego Aqueduct pipeline service point.
l 42 purple needlegrass Nassella pulchra 5 / 1 10
0.22 l 43 California poppy Eschscholzia californica 5 / 1 20
0.22 Local high point on road; begin steep descent.
0.25 l 44 coastal goldenbush Isocoma menziesii⁺ 2 / 1 9
0.29 r (coyote bush, Baccharis pilularis)
0.33 l Jct. bulldozer "dump" path from regrading road.
0.33 l 45 *bermuda grass Cynodon dactylon 30 / 9 18
46 sp purple vetch Vicia sp. 1 / 1
0.35 Cross very small drainage
0.35 l Short side road to San Diego Aqueduct pipeline service point.
0.37 47 ? dwarf lupine? Lupinus bicolor? /
0.38 l 48 horseweed Conyza canadensis 10 / 5 24
0.38 49 *sow thistle Sonchus oleraceus / 25
0.38 Local low point on road.
0.39 l 50 unk dead annual like Eriogonum davidsonii in habit, but no involucre.11
0.40 l Jct road to North Field Station, uphill; stay right.
0.41 l 51 *horehound Marrubium vulgare 5 / 1 22
0.41 Gate across road before descent to Temecula Gorge; elevation ~1080 feet (330 m)
0.43 r 52 laurel sumac Malosma laurina 1 / 1 31
0.43 b 53 slender wreathplant Stephanomeria exigua ssp. deanei 30 / 9 9
0.44 r 54 *high mallow Malva sylvestris 2 / 1 2
0.45 l 55 California buckwheat Eriogonum fasciculatum var. foliolosum 20 / 9 39
0.46 r 56 bicolored everlasting Gnaphalium bicolor 20 / 5 25
0.46 r 57 California four o'clock Mirabilis californica 30 / 9 15
0.47 r (bird's-foot fern, Pellaea mucronata var. mucronata)
0.48 r 58 Bigelow's spike-moss Selaginella bigelovii 10 / 4 15
0.48 r 59 California chalk lettuce Dudleya pulverulenta ssp. pulverulenta 5 / 3 8
0.48 r 60 ladies fingers Dudleya edulis 1 / 1 7
0.48 r 61 bur-ragweed Ambrosia acanthicarpa 30 / 9 13
0.49 r 62 sp annual Phacelia Phacelia sp. 10 / 1
0.49 r 63 giant needlegrass Achnatherum coronatum 10 / 9 19
0.49 r 64 meally white pincushion Chaenactis artemisiifolia 30 / 9 11
0.49 65 *sourclover Melilotus indicus / 15
0.50 66 *redstem filaree Erodium cicutarium / 40
r 67 sp *white? goosefoot Chenopodium album? /
0.51 r First California chalk lettuce, Dudleya pulverulenta ssp. pulverulenta, in 2003.
0.51 r 68 golden yarrow Eriophyllum confertiflorum var. confertiflorum 30 / 9 44
0.53 Road curves gradually right
0.55 l 69 California suncup Camissonia californica 30 / 9 17
0.56 Cross under powerlines.
0.56 70 stinging lupine Lupinus hirsutissimus 10 / 5 12
0.58 r 71 ~ cottony fern Cheilanthes newberryi 2 / 1 3
0.58 r First ladies fingers, Dudleya edulis, in 2003.
0.58 r 72 bush monkeyflower Mimulus aurantiacus 5 / 2 33
0.58 l 73 sugar bush Rhus ovata 1 / 1 21
0.58 r 74 bird's-foot fern Pellaea mucronata var. mucronata 5 / 2 20
0.58 75 wild canterbury bells Phacelia minor / 14
0.58 r (lanceleaf dudleya, Dudleya lanceolata)
0.58 r 76 sweetbush Bebbia juncea var. aspera 20 / 9 6
0.58 l 77 chamise Adenostoma fasciculatum⁺ 1 / 1 30
0.59 r 78 ? unk grass
0.60 79 sacred datura Datura wrightii 5 / 5 14
0.60 80 *California burclover Medicago polymorpha / 28
0.60 r 81 California brickellbush Brickellia californica 10 / 9 24
0.61 82 Bishop's lotus Lotus strigosus / 25
0.63 83 *Mediterranean schismus Schismus barbatus / 14
0.64 84 small-seeded spurge Chamaesyce polycarpa 5 / 3 11
0.64 r 85 ~ wild pepper-grass Lepidium virginicum 10 / 4
0.65 86 popcorn flower Cryptantha intermedia / 21
0.65 r 87 odora Porophyllum gracile 5 / 3 4
r (chaparral yucca, Yucca whipplei)
0.66 Switchback left.
0.66 88 coffee fern Pellaea andromedifolia 5 / 3 19
0.67 r 89 chaparral bush mallow Malacothamnus fasciculatus 3 / 1 11
0.67 r 90 California bee plant Scrophularia californica ssp. floribunda 5 / 3 10
r 91 chaparral yucca Yucca whipplei / 23
0.68 r Small concrete road drainage
0.69 r Small concrete road drainage
0.70 r 92 California croton Croton californicus 20 / 4 6
0.72 l Road drainage grate.
0.76 r Small concrete road drainage
0.76 r Pole with 3 cameras pointing to Gorge.
93 purple snapdragon Antirrhinum nuttallianum ssp. nuttallianum 3 / 1 12
0.77 r 94 brittlebush Encelia farinosa 10 / 2 5
0.78 b First sacred datura, Datura wrightii, in 2003.
0.81 r 95 wild-cucumber Marah macrocarpus var. macrocarpus / 36
0.81 r 96 branching phacelia Phacelia ramosissima var. latifolia 5 / 2 25
0.81 Switchback right. The old road (on the USGS Topo Map) continued straight, across the river.
0.81 b 97 Engelmann oak Quercus engelmannii 2 / 1 14
0.81 l 98 Spanish clover Lotus purshianus var. purshianus 5 / 1 17
0.81 r 99 toyon Heteromeles arbutifolia 1 / 1 37
0.82 100 collar lupine Lupinus truncatus 10 / 2 18
0.82 101 *winter vetch Vicia villosa ssp. varia 10 / 1 11
0.82 l 102 Fremont cottonwood Populus fremontii ssp. fremontii 10 / 3 7
0.82 l mule fat (male and female side by side)
0.82 103 *curly dock Rumex crispus / 15
0.82 l 104 western ragweed Ambrosia psilostachya 20 / 2 26
0.82 l 105 *white sweetclover Melilotus albus 20 / 2 6
0.84 l 106 silky lotus Lotus heermannii var. heermannii 2 / 1 6
l 107 seaside heliotrope Heliotropium curassavicum 3 / 1 7
0.85 l Rain gauge and weather station
0.86 Road turns left 90° to cross River on an Arizona crossing.
0.86 l 108 narrowleaf willow Salix exigua 2 / 1 5
0.87 l 109 arroyo willow Salix lasiolepis 1 / 1 27
0.87 l 110 smooth scouring rush Equisetum laevigatum 10 / 1 2
0.88 l 111 red willow Salix laevigata 1 / 1 16
0.88 l 112 *tall fescue Festuca arundinacea 5 / 1 2
0.88 r 113 *English plantain Plantago lanceolata 5 / 1 15
0.88 l 114 American tule Scirpus americanus 10 / 1 3
0.88 b 115 *rabbits-foot grass Polypogon monspeliensis 10 / 1 13
0.88 l 116 ~ broadleaf cattail Typha latifolia 10 / 1 4
0.88 r 117 *rattail fescue Vulpia myuros var. myuros 10 / 1 11
0.88 r 118 western goldenrod Euthamia occidentalis 10 / 1 2
0.88 b 119 water cress Rorippa nasturtium-aquaticum 10 / 1 9
0.88 l 120 *brass-buttons Cotula coronopifolia / 3
0.88 l 121 knot grass Paspalum distichum 5 / 1 3
0.88 r 122 willowherb Epilobium ciliatum ssp. ciliatum 5 / 1 15
0.88 r 123 common monkeyflower Mimulus guttatus 1 / 1 8
0.88 Water of the Santa Margarita River; elevation ~775 feet (235 m); the following species are reached by a brief excursion on the bedrock just upstream; end guide.

0.88 124 *celery Apium graveolens 1 / 1 3
0.88 125 black willow Salix gooddingii 1 / 1 6
0.88 126 ? low juncus / sedge ? 10 / 1
0.88 127 ? unk sedge ? 10 / 1

Comments On Specific Species

Sambucus mexicana. The one on the trail looked dead on 7/9/04. There are 1-2 plants just off trail still alive.
Quercus agrifolia var. agrifolia. The first specimen is a young plant; a mature specimen is at mile 0.20.
Isocoma menziesii. Distinguishing var. menziesii from var. vernonioides seems problematic using either the Munz key or the JM key. See Comments on the Jepson Manual and A Flora of Southern California by Munz.
Adenostoma fasciculatum. The specimen is quite old, and may be approaching its maximum lifetime of 100-200 years. It probably one was of a few survivors of the last fire here sometime around 1960.
It is odd that there are no younger plants around, since chamise typically forms large stands post-fire, except for plants in the immediately vicinity of the Field Station on the hill above this specimen. Perhaps the non-native annual grasses prevented seedling re-establishment; perhaps a drought year following germination killed off most of the plants; or perhaps this is just not a favorable location for chamise.

Number of Trails Containing A Taxon	Number Of Taxa On This Trail	% of Taxa On This Trail
1	0	0%
2	4	3%
3	5	4%
4	2	2%
5	2	2%

1-5	13	11%
6-10	19	17%
11-15	27	23%
16-20	13	11%
21-25	15	13%
26-30	8	7%
31-35	9	8%
36-40	9	8%
41-45	2	2%
Total Taxa	115	100%

Visit Date	Visit #	# taxa	# "?"	# "sp"	# "~"	# "ssp"
3/31/2002	1	96	15
4/25/2002	2	99	12
4/27/2002	3	102	12
6/3/2002	4	112	11			1
6/9/2002	5	118	10			0
12/22/2003	6	125	4	8	1	1
7/9/2004	7	127	4	7	3	1

mile	s	#	id	Common Name	Latin Name	#here	#all
0.00				North entrance gate; elevation 1180 feet (360 m)
0.00	l	1		*ripgut brome	Bromus diandrus	/	38
0.00	l	2		*soft chess	Bromus hordeaceus	/	28
0.00	b	3		*shortpod mustard	Hirschfeldia incana	99 / 9	40
0.00	l	4		*Russian thistle	Salsola tragus	/	23
0.00		5		*white-stemmed filaree	Erodium moschatum	/	12
0.00	b	6		*tocalote	Centaurea melitensis	99 / 9	34
0.00		7		*red brome	Bromus madritensis ssp. rubens	99 / 9	40
0.00	r	8		saw-toothed goldenbush	Hazardia squarrosa var. grindelioides	/	28
0.00	b	9		white sage	Salvia apiana	30 / 9	30
0.00	r	10		*narrowleaf filago	Filago gallica	99 / 9	32
0.00	r	11		short-winged deerweed	Lotus scoparius var. brevialatus	30 / 9	15
0.00		12	ssp	*foxtail barley	Hordeum murinum ssp. leporinum	/	14
0.00	r	13		*creeping Australian saltbush	Atriplex semibaccata	10 / 5	10
0.00	l	14		California buckwheat	Eriogonum fasciculatum var. polifolium	20 / 9	12
0.00		15		*slender wild oats	Avena barbata	/	25
0.00		16		*wild oats	Avena fatua	/	16
0.00		17		white everlasting	Gnaphalium canescens ssp. microcephalum	20 / 9	31
0.00	r	18		California-aster	Lessingia filaginifolia var. filaginifolia	20 / 9	40
0.00	r	19		slender tarweed	Hemizonia fasciculata	50 / 9	10
0.00	r		sp	(Eucalyptus sp.)
0.00		20		*little horseweed	Conyza bonariensis	/	10
0.00	b	21		California sagebrush	Artemisia californica	30 / 9	34
0.00	r	22		narrowleaf bedstraw	Galium angustifolium ssp. angustifolium	20 / 9	41
0.01	r	23		California everlasting	Gnaphalium californicum	/	28
0.01	r	24	sp	Clarkia	Clarkia sp.	/
0.02	r	25		heartleaf penstemon	Keckiella cordifolia	/	21
0.02	r	26		*goldentop	Lamarckia aurea	20 / 2	12
0.02	r			Jct. road.
0.04	l	27	sp	Pacific? sanicle	Sanicula crassicaulis?	1 / 1
0.04	l	28		hollyleaf redberry	Rhamnus ilicifolia	10 / 9	34
0.04		29		California dodder	Cuscuta californica var. californica	/	12
0.05	r	30	sp	Eucalyptus	Eucalyptus sp	1 / 1
0.05	l	31		telegraph weed	Heterotheca grandiflora	30 / 9	23
0.05	l	32		cocklebur	Xanthium strumarium	10 / 1	10
0.05		33		*scarlet pimpernel	Anagallis arvensis	/	17
0.05	l	34		mule fat	Baccharis salicifolia	10 / 3	31
0.05		35		*nit grass	Gastridium ventricosum	/	15
0.06	b			Fire hydrants
0.06	r	36		blue elderberry	Sambucus mexicana⁺	1 / 1	38
0.06	r	37		*tree tobacco	Nicotiana glauca	1 / 1	17
0.09	b	38		San Diego wreathplant	Stephanomeria diegensis	30 / 5	15
0.09	l			(laurel sumac, Malosma laurina)
0.10		39		San Diego morning-glory	Calystegia macrostegia ssp. tenuifolia	20 / 5	16
0.12	l			Jct. Via Novilla.
0.14	l	40		coast live oak	Quercus agrifolia var. agrifolia⁺	2 / 2	33
0.15	l			Jct. entrance for Via Novilla coming from south.
0.18	l			Short side road to San Diego Aqueduct pipeline service point.
0.19	b	41		*prickly lettuce	Lactuca serriola	10 / 9	25
0.20	l			Jct. North Rim Trail; elevation 1150 feet (350 m). See separate field guide for that trail.
0.21				Short side road to San Diego Aqueduct pipeline service point.
	l	42		purple needlegrass	Nassella pulchra	5 / 1	10
0.22	l	43		California poppy	Eschscholzia californica	5 / 1	20
0.22				Local high point on road; begin steep descent.
0.25	l	44		coastal goldenbush	Isocoma menziesii⁺	2 / 1	9
0.29	r			(coyote bush, Baccharis pilularis)
0.33	l			Jct. bulldozer "dump" path from regrading road.
0.33	l	45		*bermuda grass	Cynodon dactylon	30 / 9	18
		46	sp	purple vetch	Vicia sp.	1 / 1
0.35				Cross very small drainage
0.35	l			Short side road to San Diego Aqueduct pipeline service point.
0.37		47	?	dwarf lupine?	Lupinus bicolor?	/
0.38	l	48		horseweed	Conyza canadensis	10 / 5	24
0.38		49		*sow thistle	Sonchus oleraceus	/	25
0.38				Local low point on road.
0.39	l	50		unk dead annual like Eriogonum davidsonii in habit, but no involucre.11
0.40	l			Jct road to North Field Station, uphill; stay right.
0.41	l	51		*horehound	Marrubium vulgare	5 / 1	22
0.41				Gate across road before descent to Temecula Gorge; elevation ~1080 feet (330 m)
0.43	r	52		laurel sumac	Malosma laurina	1 / 1	31
0.43	b	53		slender wreathplant	Stephanomeria exigua ssp. deanei	30 / 9	9
0.44	r	54		*high mallow	Malva sylvestris	2 / 1	2
0.45	l	55		California buckwheat	Eriogonum fasciculatum var. foliolosum	20 / 9	39
0.46	r	56		bicolored everlasting	Gnaphalium bicolor	20 / 5	25
0.46	r	57		California four o'clock	Mirabilis californica	30 / 9	15
0.47	r			(bird's-foot fern, Pellaea mucronata var. mucronata)
0.48	r	58		Bigelow's spike-moss	Selaginella bigelovii	10 / 4	15
0.48	r	59		California chalk lettuce	Dudleya pulverulenta ssp. pulverulenta	5 / 3	8
0.48	r	60		ladies fingers	Dudleya edulis	1 / 1	7
0.48	r	61		bur-ragweed	Ambrosia acanthicarpa	30 / 9	13
0.49	r	62	sp	annual Phacelia	Phacelia sp.	10 / 1
0.49	r	63		giant needlegrass	Achnatherum coronatum	10 / 9	19
0.49	r	64		meally white pincushion	Chaenactis artemisiifolia	30 / 9	11
0.49		65		*sourclover	Melilotus indicus	/	15
0.50		66		*redstem filaree	Erodium cicutarium	/	40
	r	67	sp	*white? goosefoot	Chenopodium album?	/
0.51	r			First California chalk lettuce, Dudleya pulverulenta ssp. pulverulenta, in 2003.
0.51	r	68		golden yarrow	Eriophyllum confertiflorum var. confertiflorum	30 / 9	44
0.53				Road curves gradually right
0.55	l	69		California suncup	Camissonia californica	30 / 9	17
0.56				Cross under powerlines.
0.56		70		stinging lupine	Lupinus hirsutissimus	10 / 5	12
0.58	r	71	~	cottony fern	Cheilanthes newberryi	2 / 1	3
0.58	r			First ladies fingers, Dudleya edulis, in 2003.
0.58	r	72		bush monkeyflower	Mimulus aurantiacus	5 / 2	33
0.58	l	73		sugar bush	Rhus ovata	1 / 1	21
0.58	r	74		bird's-foot fern	Pellaea mucronata var. mucronata	5 / 2	20
0.58		75		wild canterbury bells	Phacelia minor	/	14
0.58	r			(lanceleaf dudleya, Dudleya lanceolata)
0.58	r	76		sweetbush	Bebbia juncea var. aspera	20 / 9	6
0.58	l	77		chamise	Adenostoma fasciculatum⁺	1 / 1	30
0.59	r	78	?	unk grass
0.60		79		sacred datura	Datura wrightii	5 / 5	14
0.60		80		*California burclover	Medicago polymorpha	/	28
0.60	r	81		California brickellbush	Brickellia californica	10 / 9	24
0.61		82		Bishop's lotus	Lotus strigosus	/	25
0.63		83		*Mediterranean schismus	Schismus barbatus	/	14
0.64		84		small-seeded spurge	Chamaesyce polycarpa	5 / 3	11
0.64	r	85	~	wild pepper-grass	Lepidium virginicum	10 / 4
0.65		86		popcorn flower	Cryptantha intermedia	/	21
0.65	r	87		odora	Porophyllum gracile	5 / 3	4
	r			(chaparral yucca, Yucca whipplei)
0.66				Switchback left.
0.66		88		coffee fern	Pellaea andromedifolia	5 / 3	19
0.67	r	89		chaparral bush mallow	Malacothamnus fasciculatus	3 / 1	11
0.67	r	90		California bee plant	Scrophularia californica ssp. floribunda	5 / 3	10
	r	91		chaparral yucca	Yucca whipplei	/	23
0.68	r			Small concrete road drainage
0.69	r			Small concrete road drainage
0.70	r	92		California croton	Croton californicus	20 / 4	6
0.72	l			Road drainage grate.
0.76	r			Small concrete road drainage
0.76	r			Pole with 3 cameras pointing to Gorge.
		93		purple snapdragon	Antirrhinum nuttallianum ssp. nuttallianum	3 / 1	12
0.77	r	94		brittlebush	Encelia farinosa	10 / 2	5
0.78	b			First sacred datura, Datura wrightii, in 2003.
0.81	r	95		wild-cucumber	Marah macrocarpus var. macrocarpus	/	36
0.81	r	96		branching phacelia	Phacelia ramosissima var. latifolia	5 / 2	25
0.81				Switchback right. The old road (on the USGS Topo Map) continued straight, across the river.
0.81	b	97		Engelmann oak	Quercus engelmannii	2 / 1	14
0.81	l	98		Spanish clover	Lotus purshianus var. purshianus	5 / 1	17
0.81	r	99		toyon	Heteromeles arbutifolia	1 / 1	37
0.82		100		collar lupine	Lupinus truncatus	10 / 2	18
0.82		101		*winter vetch	Vicia villosa ssp. varia	10 / 1	11
0.82	l	102		Fremont cottonwood	Populus fremontii ssp. fremontii	10 / 3	7
0.82	l			mule fat (male and female side by side)
0.82		103		*curly dock	Rumex crispus	/	15
0.82	l	104		western ragweed	Ambrosia psilostachya	20 / 2	26
0.82	l	105		*white sweetclover	Melilotus albus	20 / 2	6
0.84	l	106		silky lotus	Lotus heermannii var. heermannii	2 / 1	6
	l	107		seaside heliotrope	Heliotropium curassavicum	3 / 1	7
0.85	l			Rain gauge and weather station
0.86				Road turns left 90° to cross River on an Arizona crossing.
0.86	l	108		narrowleaf willow	Salix exigua	2 / 1	5
0.87	l	109		arroyo willow	Salix lasiolepis	1 / 1	27
0.87	l	110		smooth scouring rush	Equisetum laevigatum	10 / 1	2
0.88	l	111		red willow	Salix laevigata	1 / 1	16
0.88	l	112		*tall fescue	Festuca arundinacea	5 / 1	2
0.88	r	113		*English plantain	Plantago lanceolata	5 / 1	15
0.88	l	114		American tule	Scirpus americanus	10 / 1	3
0.88	b	115		*rabbits-foot grass	Polypogon monspeliensis	10 / 1	13
0.88	l	116	~	broadleaf cattail	Typha latifolia	10 / 1	4
0.88	r	117		*rattail fescue	Vulpia myuros var. myuros	10 / 1	11
0.88	r	118		western goldenrod	Euthamia occidentalis	10 / 1	2
0.88	b	119		water cress	Rorippa nasturtium-aquaticum	10 / 1	9
0.88	l	120		*brass-buttons	Cotula coronopifolia	/	3
0.88	l	121		knot grass	Paspalum distichum	5 / 1	3
0.88	r	122		willowherb	Epilobium ciliatum ssp. ciliatum	5 / 1	15
0.88	r	123		common monkeyflower	Mimulus guttatus	1 / 1	8
0.88				Water of the Santa Margarita River; elevation ~775 feet (235 m); the following species are reached by a brief excursion on the bedrock just upstream; end guide.

0.88		124		*celery	Apium graveolens	1 / 1	3
0.88		125		black willow	Salix gooddingii	1 / 1	6
0.88		126	?	low juncus / sedge	?	10 / 1
0.88		127	?	unk sedge	?	10 / 1

Go to:

Field Guide to San Diego County: Santa Margarita Ecological Reserve
Plants of Southern California: Trail Guides

Copyright © 2002-2004 by Tom Chester.
Permission is freely granted to reproduce any or all of this page as long as credit is given to me at this source:
http://tchester.org/sd/plants/guides/smer/north_gate_to_gorge.html
Comments and feedback: Tom Chester
Last update: 11 July 2004.