Plant Guide to Devils Slide Trail, San Jacinto Mountains

Mile	S	#	Common Name	Scientific Name	#Pls
0.00			Beginning of trail in southeast corner of parking lot, to right of sign with introductory information; 6480 feet (1975 m) elevation.
0.00	l	1	mountain whitethorn	Ceanothus cordulatus	99 / 9
0.00	l	2	incense-cedar	Calocedrus decurrens	30 / 7
0.00			Trail turns left 90°
0.01	r	3	California black oak	Quercus kelloggii	30 / 7
0.01	l	4	canyon live oak	Quercus chrysolepis	99 / 9
0.01	b	5	ponderosa pine	Pinus ponderosa var. pacifica+	50 / 5
0.01	r	6	white fir	Abies concolor	99 / 9
0.01	l	7	sugar pine	Pinus lambertiana	99 / 9
0.01	r		Sign: San Jacinto Wilderness, San Bernardino National Forest
0.01	l		Sign: "Be prepared for hazardous conditions beyond this point. Permit required beyond this point. Bikes are not permitted within the San Jacinto Wilderness or on the PCT"
0.03	l	8	fir mistletoe	Phoradendron bolleanum	99 / 9
0.04			(incense-cedar mistletoe, Phoradendron juniperinum)
0.04	b	9	Sierra Nevada lotus	Acmispon nevadensis var. nevadensis	40 / 2
0.04	l	10	former first location of chaparral lotus, last seen here in [2005?]	Acmispon grandiflorus var. grandiflorus	20 / 2
0.04	l	11	Indian milkweed	Asclepias eriocarpa	20 / 2
0.08	r		Huge boulder ~20 feet tall next to a huge dead white fir, showing how its trunk is made of wood spiraled around.
0.13	r	12	Coulter pine	Pinus coulteri	5 / 2
0.13	l		(pink-bracted manzanita, Arctostaphylos pringlei ssp. drupacea)
0.13			Switchback right, #1.
0.15	l		first location of chaparral lotus, Acmispon grandiflorus var. grandiflorus, in 2011
0.15	l	13	Davidson's buckwheat (waif)	Eriogonum davidsonii+	2 / 2
0.16	l	14	snow-plant	Sarcodes sanguinea	12 / 3
0.16	l	15	splendid gilia	Saltugilia splendens ssp. splendens	25 / 4
0.17	b	16	California-aster	Corethrogyne filaginifolia+	50 / 4
0.18	l		(narrowleaf bedstraw, Galium angustifolium ssp. angustifolium)
0.18	l		(Grinnell's beardtongue, Penstemon grinnellii var. grinnellii, gone in 2020)
0.18	r	17	leafless wintergreen (appears only infrequently)	Pyrola aphylla	2 / 2
0.19	r		(oak mistletoe, Phoradendron serotinum ssp. tomentosum)
0.22	l		(forest sedge, Carex multicaulis)
0.23			Switchback left, #2. Old trail continued down straight ahead.
0.24	l	18	white-veined wintergreen	Pyrola picta	5 / 2
0.24	l	19	spotted coralroot	Corallorhiza maculata	10 / 4
0.25	r	20	naked buckwheat	Eriogonum nudum var. pauciflorum	30 / 3
0.25	r	21	forest sedge	Carex multicaulis	10 / 3
0.25	r	22	prickly cryptantha (waif)	Cryptantha muricata+	4 / 2
0.31	l	23	southern honeysuckle	Lonicera subspicata var. denudata	5 / 5
0.33	r	24	interior live oak (at northwest side of 10' boulder)	Quercus wislizeni var. frutescens+	4 / 1
0.36	l	25	pinedrops	Pterospora andromedea	17 / 6
0.37	r	26	mountain grape-soda lupine	Lupinus excubitus var. austromontanus	8 / 1
0.37	r		(beautiful hulsea, Hulsea vestita ssp. callicarpha)
0.37	r	27	San Jacinto buckwheat	Eriogonum apiculatum+	50 / 1
0.38	r	28	golden yarrow	Eriophyllum confertiflorum var. confertiflorum	10 / 1
0.38	r	29	silky lotus (gone in 2020)	Acmispon heermannii var. heermannii	5 / 1
0.38	r		(California elegant rock-cress, Boechera californica)
0.39	r	30	twiggy wreath plant (waifs)	Stephanomeria virgata+	2 / 2
0.40	r		(short-flowered monardella, Monardella nana, here and at mile 0.49)
0.46	r		pine died in August, 2006.
0.46	r		(beaked penstemon, Penstemon rostriflorus)
0.46	r		(California-fuchsia, Epilobium canum ssp. latifolium)
0.49	l	31	pink-bracted manzanita	Arctostaphylos pringlei ssp. drupacea	30 / 5
0.49	r	32	*downy brome	Bromus tectorum+	3 / 1
0.54	l		(San Bernardino rubber rabbitbrush, Ericameria nauseosa ssp. bernardina)
0.57	l	33	Grinnell's beardtongue	Penstemon grinnellii var. grinnellii	99 / 6
0.60	l	34	beaked penstemon	Penstemon rostriflorus	50 / 9
0.66	b		(Laguna Mtns. jewel-flower, Streptanthus bernardinus)
0.68			Switchback right, #3; elevation 6900 feet (2100 m). Old trail continued up straight ahead.
0.69	l	35	Laguna Mtns. jewel-flower	Streptanthus bernardinus	10 / 2
0.76			Switchback left, #4. A "mirror-image" switchback of the old trail is immediately next to this switchback.
0.79	l	36	bush chinquapin	Chrysolepis sempervirens	10 / 5
0.81	r	37	pine lousewort (in area shielded by sugar pine roots of big tree with two small trees)	Pedicularis semibarbata	2 / 1
0.88	r	38	Yosemite rockcress	Boechera repanda	10 / 1
0.89	l		(little prince's pine, Chimaphila menziesii, not seen here since 2005)
0.89			The following three Mimulus species are only at this location in wet years (they are present in subsequent locations most years):
0.89	b	39	Brewer's monkeyflower	Mimulus breweri	99 / 3
0.89	b	40	floriferous monkeyflower	Mimulus floribundus	99 / 3
0.89	b	41	false monkeyflower	Mimulus pilosus	20 / 2
0.89	r		(pinegrove groundsmoke, Gayophytum oligospermum)
0.89	b	42	mountain California-fuchsia	Epilobium canum ssp. latifolium	30 / 4
0.93	r	43	shy monkeyflower	Mimulus nasutus	50 / 2
0.93	l	44	groundsmoke	Gayophytum diffusum ssp. parviflorum	10 / 1
0.94	r	45	sticky cinquefoil	Drymocallis glandulosa var. viscida	50 / 3
0.94	r	46	Idaho bentgrass	Agrostis idahoensis	50 / 3
0.94	b	47	streambank lotus	Hosackia oblongifolia var. oblongifolia	50 / 2
0.94	r	48	fragile sheath sedge	Carex fracta	30 / 9
0.94	b		(Fendler's blue grass, Poa fendleriana ssp. longiligula)
0.94	l		(deergrass, Muhlenbergia rigens, in drainage far below trail)
0.94	r	49	bearded flatsedge	Cyperus squarrosus	4 / 1
0.94	r	50	Suksdorf's monkeyflower	Mimulus suksdorfii	50 / 1
0.94	r	51	Tiehm's rush	Juncus tiehmii	50 / 1
0.94	r	52	long-styled rush	Juncus longistylis	15 / 3
0.95	r	53	glaucus willowherb	Epilobium glaberrimum ssp. glaberrimum	30 / 2
0.95	r	54	pinegrove groundsmoke	Gayophytum oligospermum	30 / 3
0.95	b	55	western azalea	Rhododendron occidentale	50 / 4
0.95	b	56	Scouler's willow	Salix scouleriana+	20 / 5
0.95	r	57	western marsh cudweed (waif)	Gnaphalium palustre+	1 / 1
0.95	r	58	white catch-fly	Silene verecunda	10 / 2
0.95	r	59	mountain pink currant	Ribes nevadense	30 / 4
0.95	r	60	Parish's lupine	Lupinus latifolius var. parishii	1 / 1
0.95	r	61	willowherb	Epilobium ciliatum ssp. ciliatum	4 / 2
0.95	r		(hairy wood rush, Luzula comosa)
0.95			Cross first small wet drainage (only one from Jolley Spring); elevation 7120 feet (2170 m)
0.95	r	62	slender hairgrass	Deschampsia elongata	3 / 2
0.96	r	63	broad-leaved lotus	Hosackia crassifolia var. crassifolia	15 / 2
0.96	r	64	California bee plant	Scrophularia californica	10 / 2
0.97	l	65	Parish's snowberry	Symphoricarpos rotundifolius var. parishii	30 / 5
0.97	r		(Fremont silk tassel, Garrya fremontii)
1.05	r		Tree struck by lightning, which exited along its exposed root
1.08	l		(green-leaf manzanita, Arctostaphylos patula, in front of pink-bracted manzanita, Arctostaphylos pringlei ssp. drupacea, on ridgeline)
1.10	l	66	hybrid manzanita	Arctostaphylos patula X A. pringlei ssp. drupacea+	2 / 2
1.12	l	67	Jeffrey pine	Pinus jeffreyi+	99 / 9
1.14	r		(clustered broomrape, Orobanche fasciculata)
1.14	r	68	Fendler's blue grass	Poa fendleriana ssp. longiligula	10 / 1
1.19	l		Dead tree with rocks 10 feet off ground  at top. How did the rocks get there? Try to explain it, then check our answer.
1.19	l		(Sierra gooseberry, Ribes roezlii var. roezlii, just below trail.)
1.20	r	69	Parish's bedstraw	Galium parishii	20 / 4
1.24	l		(western wallflower, Erysimum capitatum var. capitatum)
1.24	l	70	goldenrod	Solidago velutina ssp. californica	20 / 1
1.24	l		(thimbleberry, Rubus parviflorus)
1.24			first location of Parish's snowberry, Symphoricarpos rotundifolius var. parishii, in 2011
1.25			Note impressive rocks on other side of drainage.
1.25	b	71	scarlet monkeyflower	Mimulus cardinalis	30 / 2
1.25	r	72	Cleveland's horkelia	Horkelia clevelandii var. clevelandii+	20 / 3
1.25	r		(arroyo willow, Salix lasiolepis)
1.25			Cross small moist drainage #2 (first of four crossings of Powderbox Spring drainage); elevation 7320 feet (2230 m)
1.25	b	73	western columbine	Aquilegia formosa	50 / 3
1.25	l	74	giant red paintbrush (died here in 2007)	Castilleja miniata ssp. miniata	10 / 3
1.25	r	75	Fremont's goosefoot	Chenopodium fremontii	20 / 2
1.25			best location for broad-leaved lotus, Hosackia crassifolia var. crassifolia
1.25	r	76	granite prickly phlox	Linanthus pungens	38 / 4
1.25	r	77	San Bernardino rubber rabbitbrush	Ericameria nauseosa var. bernardina+	10 / 7
1.25	r	78	Fremont silk tassel	Garrya fremontii	30 / 4
1.25	l	79	narrowleaf bedstraw	Galium angustifolium ssp. angustifolium	5 / 3
1.26	r	80	Martin's paintbrush	Castilleja applegatei ssp. martinii	6 / 3
1.26	l	81	California coffeeberry	Frangula californica+	30 / 5
1.31	l	82	*prickly lettuce (waif)	Lactuca serriola+	1 / 1
1.32	r		(bracken, Pteridium aquilinum var. pubescens)
1.35	b	83	forest goosefoot	Chenopodium atrovirens	20 / 5
1.36	l	84	branching phacelia	Phacelia ramosissima	10 / 3
1.37	r		(blue elderberry, Sambucus nigra ssp. caerulea)
1.37	l		(only seen in 2012: tinker's penny, Hypericum anagalloides; baby clover, Trifolium sp.; June grass, Koeleria macrantha)
1.37			Cross small wet drainage #3 (first of two of drainage containing Middle Spring; second is above Middle Spring); elevation 7380 feet (2250 m)
1.37	r	85	baby brittle bladder fern (not seen since 2007)	Cystopteris fragilis	4 / 3
1.37	r	86	green miner's lettuce	Claytonia parviflora ssp. viridis	12 / 1
1.37	r		Very small Mimulus nasutus and M. floribundus, just 2-4 cm (1-2 inch) tall
1.38	r	87	Sierra gooseberry	Ribes roezlii var. roezlii	15 / 4
1.41	l	88	little prince's pine	Chimaphila menziesii	6 / 4
1.42			Seep in wet years
1.42	r	89	thimbleberry (small plant never seen to bloom at this location)	Rubus parviflorus	30 / 3
1.42	l	90	bracken	Pteridium aquilinum var. pubescens	20 / 3
1.46	l		Second location of hybrid manzanita, Arctostaphylos patula X A. pringlei ssp. drupacea
1.46			Trail turns 90 degrees right.
1.48			Cross bouldery drainage
1.50			Switchback right, #5; elevation 7500 feet (2290 m).
1.54			Cross same bouldery drainage again at higher elevation.
1.57	r		(white fir, Abies concolor, tree that fell over when it had a good-sized trunk, grew a new erect trunk which was lost, and now has two side branches competing to be the new main trunk)
1.59	r		View of Tahquitz Peak Lookout
1.60	r		View of Lily Rock, Palomar Mountain Range, San Diego County coastline, Santa Margarita Mountains and closer ranges.
1.66	r		(California chicory, Rafinesquia californica, seen only in 2010)
1.69			Cross wet drainage #4, a large one ~80 feet above Middle Spring, second of the two crossings of this drainage; elevation 7600 feet (2315 m)
1.69	r	91	blue elderberry	Sambucus nigra ssp. caerulea	20 / 4
1.70			Cross separate branch of same drainage
1.70	l	92	red-stemmed spring beauty	Claytonia rubra	20 / 2
1.70	l		first mature brittle bladder fern, Cystopteris fragilis
1.76			Trail turns left 50 degrees; tall rock walls on right.
1.80	l		(California cliff-brake, Pellaea mucronata var. californica)
1.80	l	93	green-leaf manzanita	Arctostaphylos patula	50 / 9
1.81	l	94	coyote tobacco (waif)	Nicotiana attenuata+	3 / 1
1.85			Enter Powderbox Spring drainage with lots of western azalea, the best display of it on the trail.
1.85			first live giant red paintbrush, Castilleja miniata ssp. miniata, in 2011
1.85	l	95	Nevada cinquefoil	Drymocallis lactea var. lactea	30 / 2
1.85	b	96	western wallflower	Erysimum capitatum var. capitatum	30 / 2
1.85			Cross wet drainage #5, second of the four crossings of Powderbox Spring drainage; elevation 7680 feet (2340 m)
1.85			First good stand of thimbleberry, Rubus parviflorus
1.85	r		(San Jacinto Mts. Keckiella, Keckiella rothrockii var. jacintensis)
1.86	b	97	wax currant	Ribes cereum var. cereum	50 / 4
1.91			Switchback left, #6. (A blocked-off old trail continues down straight ahead.)
1.99			Switchback right, #7, near drainage from Powderbox Spring again.
2.02			Switchback left, #8, with a massive rock fortress above the switchback.
2.02	r		(Just off-trail beyond the switchback, in the boulders at head level and above, is San Jacinto prickly phlox, Linanthus jaegeri; and western polypody, Polypodium hesperium. ~25 feet farther to south is little-leaf mock orange, Philadelphus microphyllus, at trail level.)
2.02	l	98	*bull thistle (waif)	Cirsium vulgare+	1 / 1
2.02	r	99	Parish's campion	Silene parishii	10 / 2
2.04	l		Sign: "Soil in the area is fragile. Please stay on the trail."
2.07	r	100	musk monkeyflower	Mimulus moschatus	99 / 2
2.07	r	101	San Jacinto Mts. keckiella	Keckiella rothrockii var. jacintensis	10 / 3
2.07	r	102	hairy wood rush	Luzula comosa	99 / 2
2.07			Cross wet drainage #6, a small one immediately above Powderbox Spring; third of the four crossings of this drainage; elevation 7840 feet (2390 m); curve left
2.07	r	103	vari-nerved sedge	Carex heteroneura	5 / 1
2.07	r		(California geranium, Geranium californicum)
2.07	r	104	changeable phacelia	Phacelia mutabilis+	10 / 2
2.07	r	105	mountain rock-cress	Boechera retrofracta X+	10 / 2
2.07	b		Best spot for Cleveland's horkelia, Horkelia clevelandii var. clevelandii
2.07	r	106	blue-eyed grass	Sisyrinchium bellum+	1 / 1
2.07	r	107	larger mountain monkeyflower	Mimulus tilingii	30 / 1
2.07	b	108	rigid hedge-nettle	Stachys rigida	8 / 1
2.08	r	109	Jepson's blue wildrye	Elymus glaucus ssp. glaucus	5 / 2
2.08	l		View of Diamond Valley Reservoir, shaped like an hourglass.
2.08	r	110	California groundcone	Kopsiopsis strobilacea	30 / 2
2.13			Trails turns 90 degrees right at ridge
2.14	r		(Many California groundcone, Kopsiopsis strobilacea)
2.20			Switchback right, #9.
2.25	l	111	southern mountain-monardella	Monardella australis ssp. australis	5 / 2
2.25	r		Trail gradually bends left. Note the window formed by the boulders on right
2.27	l	112	prickly hawkweed	Hieracium horridum	10 / 1
2.27	l		Best location for mountain rock-cress, Boechera retrofracta X
2.27	l		(western polypody, Polypodium hesperium, just above head level hidden behind boulder between white fir and canyon live oak)
2.27	l	113	Watson's spike-moss	Selaginella watsonii	5 / 1
2.27	l	114	southern Sierra phacelia	Phacelia austromontana	40 / 1
2.27	l	115	small fescue (waif)	Festuca microstachys	1 / 1
2.27	l	116	squirreltail	Elymus elymoides	2 / 1
2.28	l	117	rock buckwheat	Eriogonum saxatile	5 / 1
2.35	r		(field of swamp sedge, Carex senta. Parish's yampah, Perideridia parishii, 30 feet below trail)
2.35			Enter seep area
2.35	l	118	long-anthered rush	Juncus macrandrus	80 / 1
2.35	l	119	pearlwort	Sagina saginoides	20 / 1
2.35	l	120	Kentucky blue grass	Poa pratensis ssp. agassizensis	10 / 1
2.35	b	121	California geranium	Geranium californicum	5 / 1
2.35	l	122	plain mariposa lily	Calochortus invenustus	1 / 1
2.35	l	123	lemon lily	Lilium parryi+	1 / 1
2.35	l	124	glandular willowherb	Epilobium ciliatum ssp. glandulosum	2 / 1
2.35	l	125	primrose monkeyflower	Mimulus primuloides var. primuloides	10 / 1
2.35	l		Best location for streambank lotus, Hosackia oblongifolia var. oblongifolia, in normal years
2.35	l	126	abrupt-beak sedge	Carex abrupta	10 / 1
2.35	l	127	tinker's penny	Hypericum anagalloides	50 / 1
2.35			Cross shallow drainage at head of Powderbox Spring drainage; last of the four crossings of this drainage; elevation 8010 feet (2440 m)
2.37			Switchback left, #10. (on right: jct. with a blocked-off old trail; a path straight ahead leads to the hanging "picture window" rock seen from here; and six plants of San Jacinto prickly phlox, Leptodactylon jaegeri).
2.44	r	128	San Gabriel beardtongue	Penstemon labrosus	10 / 1
2.44	r		(Elmer's needlegrass, Stipa occidentalis var. pubescens)
2.45	r	129	pussy paws	Calyptridium monospermum	20 / 1
2.52			End Devils Slide Trail at Saddle Junction, 8075 feet (2460 m) elevation, a jct. with 4 other trails.
			SPECIES ONLY FOUND OFF-TRAIL, not numbered in the guide above.
0.04		130	incense-cedar mistletoe	Phoradendron juniperinum	1 / 1
0.19		131	oak mistletoe	Phoradendron serotinum ssp. tomentosum	1 / 1
0.37		132	beautiful hulsea	Hulsea vestita ssp. callicarpha	10 / 1
0.38		133	California elegant rock-cress	Boechera californica	1 / 1
0.40		134	short-flowered monardella	Monardella nana	2 / 2
0.94		135	deergrass	Muhlenbergia rigens	5 / 1
1.14		136	clustered broomrape	Orobanche fasciculata	6 / 1
1.25		137	arroyo willow	Salix lasiolepis	1 / 1
1.37		138	June grass	Koeleria macrantha	2 / 1
1.66		139	California chicory (waif)	Rafinesquia californica	1 / 1
1.80		140	California cliff-brake	Pellaea mucronata var. californica	2 / 1
2.02		141	San Jacinto prickly phlox	Linanthus jaegeri	8 / 2
2.02		142	little-leaf mock orange	Philadelphus microphyllus	1 / 1
2.02		143	western polypody	Polypodium hesperium	2 / 1
2.35		144	swamp sedge	Carex senta	50 / 1
2.35		145	Parish's yampah	Perideridia parishii	10 / 1
2.44		146	Elmer's needlegrass	Stipa occidentalis var. pubescens	1 / 1

http://tchester.org/sb/plants/guides/devils_slide.html
Updated 16 September 2020.