Plant Guide to Skyline Trail, San Jacinto Mountains

Mile	S	#	id?	Common Name	Scientific Name	#Pls
				Begin guide at Grubbs Notch, a saddle at the edge of Long Valley, elevation ~8420 feet (2565 m). The following 12 species are found within 60 feet of the trailhead, in alphabetic order:
0.00	-	1		white fir	Abies concolor	99
0.00	-	2		curl-leaf mountain-mahogany	Cercocarpus ledifolius	70
0.00	-	3		San Bernardino rubber rabbitbrush	Ericameria nauseosa var. bernardina	99
0.00	-	4		Parish's bedstraw	Galium parishii	99
0.00	-	5		mountain spray	Holodiscus discolor var. microphyllus	25
0.00	-	6		San Jacinto Mts. keckiella	Keckiella rothrockii var. jacintensis	99
0.00	-	7		Grinnell's beardtongue	Penstemon grinnellii var. grinnellii	99
0.00	-	8		San Gabriel beardtongue	Penstemon labrosus	1
0.00	-	9		little-leaf mock orange	Philadelphus microphyllus	99
0.00	-	10		Jeffrey pine	Pinus jeffreyi	5
0.00	-	11		sugar pine	Pinus lambertiana	99
0.00	-	12		canyon live oak	Quercus chrysolepis	99
				Plants are now in trail order
0.17	l	13		goldenrod	Solidago velutina ssp. californica	50
0.18	r	14		mountain California-fuchsia	Epilobium canum ssp. latifolium	70
0.19	l			Sign in distance: “Boundary state game refuge”. This area has the densest concentration of Philadelphus at SnJt.
0.20	l	15		bush chinquapin	Chrysolepis sempervirens	5
0.20	r	16		Parish's campion	Silene parishii	8
0.20	l	17		wide-leaved rock goldenbush	Ericameria cuneata var. spathulata	70
0.22	l	18		short-flowered monardella	Monardella nana	99
0.22	r	19		Martin's paintbrush	Castilleja applegatei ssp. martinii	10
0.25				Elevation 8000 feet (2440 m)
0.26	r	20		mountain rock-cress	Boechera retrofracta X	1
				The following three species are at the cliff to the right of the trail:
0.27	r	21		San Jacinto prickly phlox	Linanthus jaegeri	35
0.27	r	22		western columbine	Aquilegia formosa	2
0.27	r	23		Watson's spike-moss	Selaginella watsonii	10
0.28	r	24		granite prickly phlox	Linanthus pungens	10
0.32				Now on ridge; view of tram tower.
0.32	r	25		beaked penstemon	Penstemon rostriflorus	20
0.32		26		fir mistletoe	Phoradendron bolleanum	99
0.34				Trail turns right and leaves ridge. After a few more tight switchbacks, trail has a somewhat level traverse to the southeast. Elevation 7800 feet (2380 m)
0.34	r	27		San Jacinto buckwheat	Eriogonum apiculatum	8
0.37	r	28		shaggy-haired alumroot	Heuchera hirsutissima	50
				The following species is off-trail to the left:
0.41	l	29		San Jacinto lupine	Lupinus hyacinthinus	99
0.46	r	30		Parish's needlegrass	Stipa parishii var. parishii	50
0.51	r	31		pink-bracted manzanita	Arctostaphylos pringlei ssp. drupacea	30
0.52	r	32		snow-plant	Sarcodes sanguinea	1
0.58	r	33		wax currant	Ribes cereum var. cereum	2
0.64				End somewhat level stretch; elevation 7600 feet (2315 m)
0.70	r	34		Wright's buckwheat	Eriogonum wrightii var. membranaceum	99
0.71	b	35		bristly bird's beak	Cordylanthus rigidus ssp. setiger	99
0.71	r	36		squirreltail	Elymus elymoides	15
0.73				Trail turns left 90° and parallels ridge
0.74	r	37		thick-leaved yerba santa	Eriodictyon crassifolium var. nigrescens	25
0.74	r	38		white catch-fly	Silene verecunda	1
0.75	r	39	~	rush blue grass	Poa secunda ssp. juncifolia	20
0.76	r	40		desert Parry manzanita	Arctostaphylos parryana ssp. desertica	99
0.76	l	41		Coulter pine	Pinus coulteri	50
0.79	r	42		chaparral yucca	Hesperoyucca whipplei	20
0.79		43		San Jacinto Mtns. bedstraw	Galium angustifolium ssp. jacinticum	50
0.82				Pine forest is petering out here
0.82	r	44		Parry's nolina	Nolina parryi	10
0.83	l	45		bluish spike-moss	Selaginella asprella	1
0.88	l	46		*downy brome	Bromus tectorum	20
0.88	l	47		beady lipfern	Cheilanthes covillei	40
0.88	b	48		mountain whitethorn	Ceanothus cordulatus	2
0.89				Elevation 7200 feet (2195 m); dense patch of pines below
0.89	l	49		California brickellbush	Brickellia californica	1
0.90	r	50		cupped-leaf ceanothus	Ceanothus perplexans	30
0.96		51		slender everlasting	Pseudognaphalium thermale	3
0.98	r	52		white sage	Salvia apiana	1
0.98		53		birch-leaf mountain-mahogany	Cercocarpus betuloides var. betuloides	70
1.01	r	54		southern honeysuckle	Lonicera subspicata var. denudata	2
1.02	r	55		Parish's goldenbush	Ericameria parishii var. parishii	3
1.03	r	56		ashy silk tassel	Garrya flavescens	1
1.09	b	57		incense-cedar	Calocedrus decurrens	10
1.10		58		leafy daisy	Erigeron foliosus var. foliosus	20
1.15				Last Pinus coulteri just below this location
1.18		59		red shanks	Adenostoma sparsifolium	6
1.22		60		oak mistletoe	Phoradendron serotinum ssp. tomentosum	2
1.22				End plant trail guide; elevation ~6720 feet (2048 m)

http://tchester.org/sb/plants/guides/skyline_trail.html
Updated 15 August 2021.