Plant Guide to Manzanita Trail from top, Mt. Baden-Powell

Plant Guide to Manzanita Trail from top, Mt. Baden-Powell

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

For a guide to the non-botanical aspects of this trail, including directions to the trailhead, see Manzanita Trail.
The guide has been updated to mile 3.22 from 4/27/04 fieldwork, but nothing else on this page has been updated from it.
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. We had 69 trails in our database when this histogram was made; 6 of those trails, including this one, are in this same area of the San Gabriel Mountains. A number of "1" means the taxon has only been found on this trail among the trails in our database; numbers of "6" 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
1 8 7%
2 8 7%
3 14 13%
4 12 11%
5 9 8%

1-5 51 46%
6-10 28 25%
11-15 18 16%
16-20 8 7%
21-25 2 2%
26-30 2 2%
31-35 3 3%
36-40 2 2%
Total Taxa 112 100%

We found 5 additional taxa 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 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 Date Visit # # taxa # "?" # "sp" # "~" # "ssp"
6/15/2001 1
7/10/2001 2
7/25/2001 3
8/10/2001 4 74
9/9/2001 5
11/15/2001 6 82 29 11
5/31/2002 7 98 22 8
7/19/2002 8 99 10 2 3
6/4/2003 9 100 5 3 1 2
10/7/2003 10 117 5 3 1 1

On 6/4/03, we only covered the first 0.38 miles.
On 10/7/03, we extended the trail guide from mile 2.46 to mile 3.22. For comparison with 6/4/03, there were 109 taxa in the guide up to mile 2.46, an increase of 9 taxa over the number on the guide as of 6/4/03.
The Plant Guide

Version for printing, without lines and other text on this page: html (7 pages) or pdf Clickbook booklet (2 double-sided pages). (See printing instructions for an explanation of these options)

Mile S # id? Common Name Latin Name #here #all
0.00 Trailhead at Vincent Gap, elevation 6580 feet. Note the red soil, which is fault gouge.
0.00 l 1 San Bernardino rubber rabbitbrush Chrysothamnus nauseosus ssp. bernardinus 20 / 9 12
0.00 l 2 *downy brome Bromus tectorum 5 / 1 19
0.00 l 3 bur-ragweed Ambrosia acanthicarpa / 11
0.00 l 4 *shortpod mustard Hirschfeldia incana 2 / 1 35
0.00 l 5 leafy daisy Erigeron foliosus var. foliosus 20 / 9 27
0.00 b 6 mountain sagebrush Artemisia tridentata ssp. vaseyana 99 / 9 8
0.00 l 7 California squirreltail Elymus elymoides ssp. californicus / 5
0.00 8 *Jerusalem oak Chenopodium botrys⁺ 1 / 1 1
0.00 b 9 naked buckwheat Eriogonum nudum var. pauciflorum 99 / 9 6
0.00 r 10 curl-leaf mountain-mahogany Cercocarpus ledifolius var. intermontanus / 7
0.00 b 11 sulphur buckwheat Eriogonum umbellatum var. munzii 99 / 9 8
0.01 l 12 (Jeffrey pine, Pinus jeffreyi)
0.01 r 13 California fuchsia Epilobium canum / 10
0.01 l 14 Fremont's goosefoot Chenopodium fremontii 99 / 9 10
0.01 r 15 San Bernardino Mountain onion Allium monticola 90 / 3 3
0.01 l 16 one-sided bluegrass Poa secunda ssp. secunda 99 / 9 19
0.01 17 plain mariposa lily Calochortus invenustus 5 / 2 5
0.01 r 18 California buckwheat Eriogonum fasciculatum var. polifolium / 10
0.01 l 19 arched elegant rock-cress Arabis sparsiflora var. arcuata / 5
0.02 l 20 canyon live oak Quercus chrysolepis 99 / 9 18
0.02 l 21 southern mountain woolly-star Eriastrum densifolium ssp. austromontanum 10 / 1 8
r 22 santolina pincushion Chaenactis santolinoides 5 / 2 7
0.03 r 23 threadleaf common rabbitbrush Chrysothamnus nauseosus ssp. consimilis 1 / 1 1
0.03 r 24 birch-leaf mountain-mahogany Cercocarpus betuloides var. betuloides / 13
0.04 l 25 Wright's buckwheat Eriogonum wrightii var. subscaposum 10 / 1 10
0.04 l 26 Jeffrey pine Pinus jeffreyi 99 / 9 17
0.05 Trail turns left
0.05 r 27 western wallflower Erysimum capitatum ssp. capitatum 20 / 9 13
0.06 l 28 curve-stem phacelia Phacelia curvipes 20 / 1 1
0.06 b 29 volcanic gilia Gilia ochroleuca ssp. vivida / 4
0.06 r 30 blue dicks Dichelostemma capitatum ssp. capitatum / 26
0.06 r 31 Nevin's bird's beak Cordylanthus nevinii 10 / 1 4
0.08 Cross drainage, trail then turns right 90°.
0.08 l 32 wax currant Ribes cereum var. cereum / 10
0.08 33 nodding bedstraw Galium hallii 99 / 9 3
0.08 l 34 Martin's paintbrush Castilleja applegatei ssp. martinii 99 / 9 13
0.08 35 beaked penstemon Penstemon rostriflorus 99 / 9 9
0.09 l 36 white fir Abies concolor / 17
0.09 37 California dodder Cuscuta californica var. californica / 11
0.09 l 38 Sierra gooseberry Ribes roezlii var. roezlii / 8
39 giant blazing star Mentzelia laevicaulis 4 / 2 4
0.10 l Sign: "Adopt-A-Trail. AVTREC, as volunteers in cooperation with the USDA Forest Service, maintains the next 5 miles".
0.10 l 40 California coffeeberry Rhamnus californica ssp. californica 20 / 9 11
0.11 l (California black oak) (Quercus kelloggii) /
l 41 spreading larkspur Delphinium patens ssp. montanum 99 / 3 4
0.12 r 42 Utah service-berry Amelanchier utahensis 20 / 9 7
0.12 l 43 Orcutt's brome Bromus orcuttianus 30 / 3 6
0.13 l 44 miner's lettuce Claytonia perfoliata ssp. perfoliata 2 / 1 12
0.13 l Gold lichen on massive tree; on other side of canyon, blue rocks on top with red soil appearing 1/3 of the way down.
0.13 45 prickly cryptantha Cryptantha muricata 30 / 2 11
0.13 l 46 ? Laguna Mtns. jewel-flower Streptanthus bernardinus / 1
0.13 l 47 wild tarragon Artemisia dracunculus 50 / 9 20
0.13 l 48 mountain whitethorn Ceanothus cordulatus 99 / 9 12
0.14 l 49 sp California brickellbush Brickellia californica / 19
l 50 Parish's tauschia Tauschia parishii 5 / 3 4
l 51 rock melica Melica stricta 30 / 3 3
l 52 narrow-leaved miner's lettuce Claytonia parviflora ssp. parviflora / 8
0.15 b 53 blue wildrye Elymus glaucus ssp. glaucus / 14
(Coulter pine, Pinus coulteri)?
0.15 l 54 fir mistletoe Phoradendron pauciflorum / 7
0.20 55 ssp branching phacelia Phacelia ramosissima 2 / 1 2
0.20 b 56 pinegrove gayophytum Gayophytum oligospermum 99 / 9 3
0.20 r 57 western choke-cherry Prunus virginiana var. demissa 99 / 9 6
0.20 b 58 *intermediate wheatgrass Elytrigia intermedia ssp. intermedia 20 / 3 3
0.20 Cross first drainage pipe from SR2
0.23 l 59 narrowleaf monardella Monardella linoides ssp. stricta 30 / 5 1
0.24 r 60 Grinnell's beardtongue Penstemon grinnellii var. grinnellii / 12
0.35 r 61 blue elderberry Sambucus mexicana 3 / 3 33
62 mountain blazing star Mentzelia montana / 3
l 63 Wright's collinsia Collinsia torreyi var. wrightii 30 / 1 4
0.38 l 64 golden ear drops Dicentra chrysantha 1 / 1 4
0.40 Beautiful field of spreading larkspur, Delphinium patens ssp. montanum.
0.41 b 65 white catch-fly Silene verecunda ssp. platyota / 8
0.41 Trail turns left 90°; check for new fuzzy annual like Chaenactis (pix)
0.42 l 66 silky lupine Lupinus elatus 3 / 1 5
0.42 b 67 spineless horsebrush Tetradymia canescens 9 / 2 4
0.48 Cross second drainage pipe from SR2
0.52 r 68 spear-leaved mountain dandelion Agoseris retrorsa / 9
0.53 Cross third drainage pipe from SR2
0.60 69 woodland brome Bromus laevipes 20 / 2 2
0.63 70 sp phacelia Phacelia curvipes or davidsonii 30 / 2
(bigleaf maple, Acer macrophyllum)
0.71 Cross drainage
0.72 l 71 incense-cedar Calocedrus decurrens / 10
72 ? southern jewel-flower Streptanthus campestris / 2
0.78 r 73 flannelbush Fremontodendron californicum ssp. californicum 99 / 9 6
0.80 Switchback to right, #1
0.82 Switchback to left, #2
0.84 Switchback to left, #3
0.87 l 74 white-bark raspberry Rubus leucodermis 1 / 1 3
0.96 Trail turns right 90°
0.97 75 imbricate phacelia Phacelia imbricata ssp. patula 5 / 1 14
0.98 Enter first large drainage
76 Peirson's lupine Lupinus peirsonii 5 / 1 2
0.99 l 77 bigleaf maple Acer macrophyllum 10 / 2 5
1.02 Cross center of drainage
1.04 l 78 long-stalk phacelia Phacelia longipes 5 / 1 2
1.08 r A white fir that partially fell to the west when the drainage cut some of its roots when the tree was ~40' high, . Note the curve in its trunk at a height of ~40'.
1.28 Trail turns left 90°
1.29 Trail turns left 45°
r (Check for bracken)
1.36 l A field of (phacelia davidsonii?)
1.39 The saddle in the hills ahead is where the fault goes through.
1.40 79 prickly cryptantha Cryptantha echinella / 4
1.50 Trail curves left and starts to go up in elevation
1.54 r 80 narrowleaf bedstraw Galium angustifolium ssp. angustifolium 9 / 9 35
1.56 b 81 interior rose Rosa woodsii var. ultramontana 20 / 1 5
1.57 b 82 virgin's bower Clematis ligusticifolia 10 / 1 5
1.57 l 83 stinging nettle Urtica dioica ssp. holosericea 20 / 1 8
1.57 b 84 cobwebby hedge-nettle Stachys albens 20 / 1 2
1.57 85 scarlet monkeyflower Mimulus cardinalis 20 / 1 7
1.57 Cross second drainage, which has perennial running water.
1.57 86 *tumble-mustard Sisymbrium altissimum 1 / 1
1.57 r 87 willowherb Epilobium ciliatum ssp. ciliatum 10 / 1 14
1.57 88 giant red paintbrush Castilleja miniata ssp. miniata 10 / 1 4
1.58 r (mugwort, Artemisia douglasiana)
1.58 l 89 Tehachapi ragwort Senecio ionophyllus 3 / 1 3
1.61 l 90 sp Claytonia like viridis
91 ? Catchfly sp. Silene sp. /
1.72 b 92 cupped-leaf ceanothus Ceanothus greggii var. perplexans / 6
1.72 Local high point on trail on ridge; switchback left, #4, and resume descent
1.77 Trail curves right 45°.
1.79 l 93 arroyo willow Salix lasiolepis 3 / 1 23
1.79 Cross third drainage
1.79 l 94 goldenrod Solidago californica 10 / 1 23
1.79 l 95 sturdy sedge Carex alma 5 / 1 3
(white alder, Alnus rhombifolia, below in drainage)
1.83 Pink-purple rock along trail, showing slickenslides from fault movement
1.93 Trail curves left 90°
1.95 Young white fir tree with >90 degree bend in trunk
1.97 96 slender woodland star Lithophragma tenellum 10 / 1
1.98 Cross small drainage
1.99 l 97 Davidson's buckwheat Eriogonum davidsonii 10 / 2 12
1.99 l 98 ssp whispering bells Emmenanthe penduliflora var. penduliflora 5 / 2 5
1.99 l 99 little redstem monkeyflower Mimulus rubellus 10 / 1
1.99 l 100 sp Clarkia Clarkia sp. 10 / 1
2.00 Brown dirt
2.01 l 101 small-flowered melica Melica imperfecta /
2.01 b 102 Parish's needlegrass Achnatherum parishii⁺ 5 / 1 3
2.01 r 103 giant needlegrass Achnatherum coronatum⁺ 5 / 1 15
2.02 l 104 twiggy wreath plant Stephanomeria virgata 1 / 1 12
2.03 l 105 chaparral yucca Yucca whipplei 9 / 9 13
2.03 r (pinyon pine, Pinus monophylla)
2.03 r 106 ashy silk tassel Garrya flavescens 1 / 1 3
2.03 b 107 Mojave linanthus Linanthus breviculus 20 / 3 4
2.03 r 108 sp suncup Camissonia sp. /
2.04 Switchback left at ridge.
2.04 Field of poa secunda
2.08 Trail curves left 90° at ridge.
2.08 Small patch of red dirt.
2.10 Cross small drainage
2.12 Large patch of red dirt.
2.14 r 109 Tucker's oak Quercus john-tuckeri 2 / 1 2
2.17 r 110 bigberry manzanita Arctostaphylos glauca 20 / 2 7
2.19 l 111 chaparral honeysuckle Lonicera interrupta 10 / 3 3
2.19 l 112 pinyon pine Pinus monophylla / 2
2.20 b 113 Parry manzanita Arctostaphylos parryana 20 / 2 4
2.20 Cross small drainage
2.25 Switchback left, #5
2.28 Switchback right, #6; now just above the streambed but diverging from the streambed
2.31 b 114 bristly bird's beak Cordylanthus rigidus ssp. setigerus 20 / 2 19
2.31 l 115 green-leaf manzanita Arctostaphylos patula 5 / 1 9
2.32 l Good view of fault gouge.
2.33 r 116 California needlegrass Achnatherum occidentale ssp. californicum 5 / 1 5
2.34 Cross small side drainage
2.39 117 sand cress Calyptridium monandrum 99 / 3
2.40 Trail curves left; gray dirt
2.45 Switchback left, #7
2.46 Switchback right, #8; now in streambed, crossing to south side.
2.50 b 118 desert olive Forestiera pubescens 5 / 1
2.62 r (wrecked car)
2.63 Cross drainage
2.74 119 Menzies western tansy-mustard Descurainia pinnata ssp. menziesii 30 / 5
2.91 l Cut bank with many small soil slumps
2.99 Enter Dorr Canyon, the largest drainage here by far.
3.00 b 120 sp brickellbush hybrid Brickellia microphylla X B. nevinii 5 / 1 1
3.01 b 121 desert bitterbrush Purshia tridentata var. glandulosa 20 / 1 1
3.01 r 122 scale-broom Lepidospartum squamatum 20 / 1 3
3.05 b 123 wire-lettuce Stephanomeria pauciflora var. pauciflora 3 / 1 3
3.07 l 124 Heermann's buckwheat Eriogonum heermannii var. heermannii 1 / 1 1
3.16 l 125 white alder Alnus rhombifolia 1 / 1 8
3.20 Cross main drainage channel of Dorr Canyon
3.22 Leave drainage.
(Need to add rest of observations from 4/27/04, which includes Linanthus concinnus and Mimulus johnstonii at mile ~3.9.

Comments On Specific Species

Chenopodium botrys. In 2001, there were many of these plants on soil dumped at the eastern end of the Vincent Gap parking lot on the north side of SR2, and a few plants at the beginning of this trail. In 2002 and 2003, we saw no plants at all of this species, either on the trail or in the parking lot. It is possible that this altitude was too high to sustain this species here, or that all the seeds perished in the drought of 2001-2002.
Achnatherum parishii and Achnatherum coronatum. We sampled plants from the same location, and perhaps even the identical plant, on 7/19/02 and 10/07/03. On 7/19/02, only a single seed was available, which had an awn with two bends, and the measured basal leaf width was 6 mm, both of which clearly keyed to Achnatherum coronatum. However, on 10/7/03, we collected five seeds each with a single bend in their awn, which just as clearly key to Achnatherum parishii! Thus we need to do follow-up work to understand what is going on here.

Number of Trails Containing A Taxon	Number Of Taxa On This Trail	% of Taxa On This Trail
1	8	7%
2	8	7%
3	14	13%
4	12	11%
5	9	8%

1-5	51	46%
6-10	28	25%
11-15	18	16%
16-20	8	7%
21-25	2	2%
26-30	2	2%
31-35	3	3%
36-40	2	2%
Total Taxa	112	100%

Visit Date	Visit #	# taxa	# "?"	# "sp"	# "~"	# "ssp"
6/15/2001	1
7/10/2001	2
7/25/2001	3
8/10/2001	4	74
9/9/2001	5
11/15/2001	6	82	29			11
5/31/2002	7	98	22			8
7/19/2002	8	99	10		2	3
6/4/2003	9	100	5	3	1	2
10/7/2003	10	117	5	3	1	1

Mile	S	#	id?	Common Name	Latin Name	#here	#all
0.00				Trailhead at Vincent Gap, elevation 6580 feet. Note the red soil, which is fault gouge.
0.00	l	1		San Bernardino rubber rabbitbrush	Chrysothamnus nauseosus ssp. bernardinus	20 / 9	12
0.00	l	2		*downy brome	Bromus tectorum	5 / 1	19
0.00	l	3		bur-ragweed	Ambrosia acanthicarpa	/	11
0.00	l	4		*shortpod mustard	Hirschfeldia incana	2 / 1	35
0.00	l	5		leafy daisy	Erigeron foliosus var. foliosus	20 / 9	27
0.00	b	6		mountain sagebrush	Artemisia tridentata ssp. vaseyana	99 / 9	8
0.00	l	7		California squirreltail	Elymus elymoides ssp. californicus	/	5
0.00		8		*Jerusalem oak	Chenopodium botrys⁺	1 / 1	1
0.00	b	9		naked buckwheat	Eriogonum nudum var. pauciflorum	99 / 9	6
0.00	r	10		curl-leaf mountain-mahogany	Cercocarpus ledifolius var. intermontanus	/	7
0.00	b	11		sulphur buckwheat	Eriogonum umbellatum var. munzii	99 / 9	8
0.01	l	12		(Jeffrey pine, Pinus jeffreyi)
0.01	r	13		California fuchsia	Epilobium canum	/	10
0.01	l	14		Fremont's goosefoot	Chenopodium fremontii	99 / 9	10
0.01	r	15		San Bernardino Mountain onion	Allium monticola	90 / 3	3
0.01	l	16		one-sided bluegrass	Poa secunda ssp. secunda	99 / 9	19
0.01		17		plain mariposa lily	Calochortus invenustus	5 / 2	5
0.01	r	18		California buckwheat	Eriogonum fasciculatum var. polifolium	/	10
0.01	l	19		arched elegant rock-cress	Arabis sparsiflora var. arcuata	/	5
0.02	l	20		canyon live oak	Quercus chrysolepis	99 / 9	18
0.02	l	21		southern mountain woolly-star	Eriastrum densifolium ssp. austromontanum	10 / 1	8
	r	22		santolina pincushion	Chaenactis santolinoides	5 / 2	7
0.03	r	23		threadleaf common rabbitbrush	Chrysothamnus nauseosus ssp. consimilis	1 / 1	1
0.03	r	24		birch-leaf mountain-mahogany	Cercocarpus betuloides var. betuloides	/	13
0.04	l	25		Wright's buckwheat	Eriogonum wrightii var. subscaposum	10 / 1	10
0.04	l	26		Jeffrey pine	Pinus jeffreyi	99 / 9	17
0.05				Trail turns left
0.05	r	27		western wallflower	Erysimum capitatum ssp. capitatum	20 / 9	13
0.06	l	28		curve-stem phacelia	Phacelia curvipes	20 / 1	1
0.06	b	29		volcanic gilia	Gilia ochroleuca ssp. vivida	/	4
0.06	r	30		blue dicks	Dichelostemma capitatum ssp. capitatum	/	26
0.06	r	31		Nevin's bird's beak	Cordylanthus nevinii	10 / 1	4
0.08				Cross drainage, trail then turns right 90°.
0.08	l	32		wax currant	Ribes cereum var. cereum	/	10
0.08		33		nodding bedstraw	Galium hallii	99 / 9	3
0.08	l	34		Martin's paintbrush	Castilleja applegatei ssp. martinii	99 / 9	13
0.08		35		beaked penstemon	Penstemon rostriflorus	99 / 9	9
0.09	l	36		white fir	Abies concolor	/	17
0.09		37		California dodder	Cuscuta californica var. californica	/	11
0.09	l	38		Sierra gooseberry	Ribes roezlii var. roezlii	/	8
		39		giant blazing star	Mentzelia laevicaulis	4 / 2	4
0.10	l			Sign: "Adopt-A-Trail. AVTREC, as volunteers in cooperation with the USDA Forest Service, maintains the next 5 miles".
0.10	l	40		California coffeeberry	Rhamnus californica ssp. californica	20 / 9	11
0.11	l			(California black oak)	(Quercus kelloggii)	/
	l	41		spreading larkspur	Delphinium patens ssp. montanum	99 / 3	4
0.12	r	42		Utah service-berry	Amelanchier utahensis	20 / 9	7
0.12	l	43		Orcutt's brome	Bromus orcuttianus	30 / 3	6
0.13	l	44		miner's lettuce	Claytonia perfoliata ssp. perfoliata	2 / 1	12
0.13	l			Gold lichen on massive tree; on other side of canyon, blue rocks on top with red soil appearing 1/3 of the way down.
0.13		45		prickly cryptantha	Cryptantha muricata	30 / 2	11
0.13	l	46	?	Laguna Mtns. jewel-flower	Streptanthus bernardinus	/	1
0.13	l	47		wild tarragon	Artemisia dracunculus	50 / 9	20
0.13	l	48		mountain whitethorn	Ceanothus cordulatus	99 / 9	12
0.14	l	49	sp	California brickellbush	Brickellia californica	/	19
	l	50		Parish's tauschia	Tauschia parishii	5 / 3	4
	l	51		rock melica	Melica stricta	30 / 3	3
	l	52		narrow-leaved miner's lettuce	Claytonia parviflora ssp. parviflora	/	8
0.15	b	53		blue wildrye	Elymus glaucus ssp. glaucus	/	14
				(Coulter pine, Pinus coulteri)?
0.15	l	54		fir mistletoe	Phoradendron pauciflorum	/	7
0.20		55	ssp	branching phacelia	Phacelia ramosissima	2 / 1	2
0.20	b	56		pinegrove gayophytum	Gayophytum oligospermum	99 / 9	3
0.20	r	57		western choke-cherry	Prunus virginiana var. demissa	99 / 9	6
0.20	b	58		*intermediate wheatgrass	Elytrigia intermedia ssp. intermedia	20 / 3	3
0.20				Cross first drainage pipe from SR2
0.23	l	59		narrowleaf monardella	Monardella linoides ssp. stricta	30 / 5	1
0.24	r	60		Grinnell's beardtongue	Penstemon grinnellii var. grinnellii	/	12
0.35	r	61		blue elderberry	Sambucus mexicana	3 / 3	33
		62		mountain blazing star	Mentzelia montana	/	3
	l	63		Wright's collinsia	Collinsia torreyi var. wrightii	30 / 1	4
0.38	l	64		golden ear drops	Dicentra chrysantha	1 / 1	4
0.40				Beautiful field of spreading larkspur, Delphinium patens ssp. montanum.
0.41	b	65		white catch-fly	Silene verecunda ssp. platyota	/	8
0.41				Trail turns left 90°; check for new fuzzy annual like Chaenactis (pix)
0.42	l	66		silky lupine	Lupinus elatus	3 / 1	5
0.42	b	67		spineless horsebrush	Tetradymia canescens	9 / 2	4
0.48				Cross second drainage pipe from SR2
0.52	r	68		spear-leaved mountain dandelion	Agoseris retrorsa	/	9
0.53				Cross third drainage pipe from SR2
0.60		69		woodland brome	Bromus laevipes	20 / 2	2
0.63		70	sp	phacelia	Phacelia curvipes or davidsonii	30 / 2
				(bigleaf maple, Acer macrophyllum)
0.71				Cross drainage
0.72	l	71		incense-cedar	Calocedrus decurrens	/	10
		72	?	southern jewel-flower	Streptanthus campestris	/	2
0.78	r	73		flannelbush	Fremontodendron californicum ssp. californicum	99 / 9	6
0.80				Switchback to right, #1
0.82				Switchback to left, #2
0.84				Switchback to left, #3
0.87	l	74		white-bark raspberry	Rubus leucodermis	1 / 1	3
0.96				Trail turns right 90°
0.97		75		imbricate phacelia	Phacelia imbricata ssp. patula	5 / 1	14
0.98				Enter first large drainage
		76		Peirson's lupine	Lupinus peirsonii	5 / 1	2
0.99	l	77		bigleaf maple	Acer macrophyllum	10 / 2	5
1.02				Cross center of drainage
1.04	l	78		long-stalk phacelia	Phacelia longipes	5 / 1	2
1.08	r			A white fir that partially fell to the west when the drainage cut some of its roots when the tree was ~40' high, . Note the curve in its trunk at a height of ~40'.
1.28				Trail turns left 90°
1.29				Trail turns left 45°
	r			(Check for bracken)
1.36	l			A field of (phacelia davidsonii?)
1.39				The saddle in the hills ahead is where the fault goes through.
1.40		79		prickly cryptantha	Cryptantha echinella	/	4
1.50				Trail curves left and starts to go up in elevation
1.54	r	80		narrowleaf bedstraw	Galium angustifolium ssp. angustifolium	9 / 9	35
1.56	b	81		interior rose	Rosa woodsii var. ultramontana	20 / 1	5
1.57	b	82		virgin's bower	Clematis ligusticifolia	10 / 1	5
1.57	l	83		stinging nettle	Urtica dioica ssp. holosericea	20 / 1	8
1.57	b	84		cobwebby hedge-nettle	Stachys albens	20 / 1	2
1.57		85		scarlet monkeyflower	Mimulus cardinalis	20 / 1	7
1.57				Cross second drainage, which has perennial running water.
1.57		86		*tumble-mustard	Sisymbrium altissimum	1 / 1
1.57	r	87		willowherb	Epilobium ciliatum ssp. ciliatum	10 / 1	14
1.57		88		giant red paintbrush	Castilleja miniata ssp. miniata	10 / 1	4
1.58	r			(mugwort, Artemisia douglasiana)
1.58	l	89		Tehachapi ragwort	Senecio ionophyllus	3 / 1	3
1.61	l	90	sp	Claytonia like viridis
		91	?	Catchfly sp.	Silene sp.	/
1.72	b	92		cupped-leaf ceanothus	Ceanothus greggii var. perplexans	/	6
1.72				Local high point on trail on ridge; switchback left, #4, and resume descent
1.77				Trail curves right 45°.
1.79	l	93		arroyo willow	Salix lasiolepis	3 / 1	23
1.79				Cross third drainage
1.79	l	94		goldenrod	Solidago californica	10 / 1	23
1.79	l	95		sturdy sedge	Carex alma	5 / 1	3
				(white alder, Alnus rhombifolia, below in drainage)
1.83				Pink-purple rock along trail, showing slickenslides from fault movement
1.93				Trail curves left 90°
1.95				Young white fir tree with >90 degree bend in trunk
1.97		96		slender woodland star	Lithophragma tenellum	10 / 1
1.98				Cross small drainage
1.99	l	97		Davidson's buckwheat	Eriogonum davidsonii	10 / 2	12
1.99	l	98	ssp	whispering bells	Emmenanthe penduliflora var. penduliflora	5 / 2	5
1.99	l	99		little redstem monkeyflower	Mimulus rubellus	10 / 1
1.99	l	100	sp	Clarkia	Clarkia sp.	10 / 1
2.00				Brown dirt
2.01	l	101		small-flowered melica	Melica imperfecta	/
2.01	b	102		Parish's needlegrass	Achnatherum parishii⁺	5 / 1	3
2.01	r	103		giant needlegrass	Achnatherum coronatum⁺	5 / 1	15
2.02	l	104		twiggy wreath plant	Stephanomeria virgata	1 / 1	12
2.03	l	105		chaparral yucca	Yucca whipplei	9 / 9	13
2.03	r			(pinyon pine, Pinus monophylla)
2.03	r	106		ashy silk tassel	Garrya flavescens	1 / 1	3
2.03	b	107		Mojave linanthus	Linanthus breviculus	20 / 3	4
2.03	r	108	sp	suncup	Camissonia sp.	/
2.04				Switchback left at ridge.
2.04				Field of poa secunda
2.08				Trail curves left 90° at ridge.
2.08				Small patch of red dirt.
2.10				Cross small drainage
2.12				Large patch of red dirt.
2.14	r	109		Tucker's oak	Quercus john-tuckeri	2 / 1	2
2.17	r	110		bigberry manzanita	Arctostaphylos glauca	20 / 2	7
2.19	l	111		chaparral honeysuckle	Lonicera interrupta	10 / 3	3
2.19	l	112		pinyon pine	Pinus monophylla	/	2
2.20	b	113		Parry manzanita	Arctostaphylos parryana	20 / 2	4
2.20				Cross small drainage
2.25				Switchback left, #5
2.28				Switchback right, #6; now just above the streambed but diverging from the streambed
2.31	b	114		bristly bird's beak	Cordylanthus rigidus ssp. setigerus	20 / 2	19
2.31	l	115		green-leaf manzanita	Arctostaphylos patula	5 / 1	9
2.32	l			Good view of fault gouge.
2.33	r	116		California needlegrass	Achnatherum occidentale ssp. californicum	5 / 1	5
2.34				Cross small side drainage
2.39		117		sand cress	Calyptridium monandrum	99 / 3
2.40				Trail curves left; gray dirt
2.45				Switchback left, #7
2.46				Switchback right, #8; now in streambed, crossing to south side.
2.50	b	118		desert olive	Forestiera pubescens	5 / 1
2.62	r			(wrecked car)
2.63				Cross drainage
2.74		119		Menzies western tansy-mustard	Descurainia pinnata ssp. menziesii	30 / 5
2.91	l			Cut bank with many small soil slumps
2.99				Enter Dorr Canyon, the largest drainage here by far.
3.00	b	120	sp	brickellbush hybrid	Brickellia microphylla X B. nevinii	5 / 1	1
3.01	b	121		desert bitterbrush	Purshia tridentata var. glandulosa	20 / 1	1
3.01	r	122		scale-broom	Lepidospartum squamatum	20 / 1	3
3.05	b	123		wire-lettuce	Stephanomeria pauciflora var. pauciflora	3 / 1	3
3.07	l	124		Heermann's buckwheat	Eriogonum heermannii var. heermannii	1 / 1	1
3.16	l	125		white alder	Alnus rhombifolia	1 / 1	8
3.20				Cross main drainage channel of Dorr Canyon
3.22				Leave drainage.
				(Need to add rest of observations from 4/27/04, which includes Linanthus concinnus and Mimulus johnstonii at mile ~3.9.

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Plants of Southern California: Trail Guides

Copyright © 2002-2004 by Tom Chester and Jane Strong.
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http://tchester.org/sgm/plants/guides/manzanita_trail.html
Comments and feedback: Tom Chester | Jane Strong
Updated 25 September 2004.