Plant Guide to Round Valley Loop Trail, San Jacinto Mountains

Mile	S	#	id?	Common Name	Latin Name	#here
0.00				Begin guide at Willow Creek Trail jct. with Round Valley Trail 0.12 miles west of Ranger Station; elevation 8400 feet (2560 m); go left on Willow Creek Trail. Sign: "[left] Willow Creek 3.7 mi; Skunk Cabbage Meadow 5 mi; Idyllwild 10.5 mi; [ahead] Long Valley; Round Valley 2 mi; Saddle Junction 5.5 mi; [back] Tramway 0.3 mi"
0.00	r	1		sugar pine	Pinus lambertiana	20 / 9
0.00	b	2		white fir	Abies concolor	99 / 9
0.00	b	3		Parish's snowberry	Symphoricarpos rotundifolius var. parishii	99 / 9
0.00	l	4		San Jacinto Mts. keckiella	Keckiella rothrockii var. jacintensis	99 / 9
0.00	b	5		San Bernardino rubber rabbitbrush	Ericameria nauseosa var. bernardina	99 / 9
0.00	b	6		western needlegrass	Stipa occidentalis var. occidentalis	50 / 2
0.00	r	7		goldenrod	Solidago velutina ssp. californica	10 / 1
0.00	l	8		mountain spray	Holodiscus discolor var. microphyllus	15 / 1
				The next five species are In the drainage to the right of the trail:
0.00	r	9		pinegrove groundsmoke	Gayophytum oligospermum	99 / 9
0.00	r	10		Cleveland's horkelia	Horkelia clevelandii var. clevelandii	50 / 2
0.00	r	11		Brewer's monkeyflower	Mimulus breweri	99 / 2
0.00	r	12		false monkeyflower	Mimulus pilosus	99 / 2
0.00	r	13		Suksdorf's monkeyflower	Mimulus suksdorfii	50 / 1
				Back on trail
0.00	b	14		little-leaf mock orange	Philadelphus microphyllus	20 / 4
0.01	r	15		Jeffrey pine	Pinus jeffreyi	50 / 9
0.01	l	16		Parish's bedstraw	Galium parishii	15 / 2
0.02	l	17		granite prickly phlox	Linanthus pungens	50 / 2
0.02	l	18		mountain California-fuchsia	Epilobium canum ssp. latifolium	99 / 1
0.02	r	19		prickly hawkweed	Hieracium horridum	3 / 2
0.02	r	20		fringed brome	Bromus richardsonii	1 / 1
0.02	r	21		sticky cinquefoil	Drymocallis glandulosa var. viscida	20 / 2
0.02	r	22		brown sedge	Carex subfusca	99 / 3
0.02	r	23		squirreltail	Elymus elymoides	5 / 2
0.02	r			Check for Carex rossii
0.03	r	24		canyon live oak	Quercus chrysolepis	1 / 1
0.03	l	25		wax currant	Ribes cereum var. cereum	2 / 1
0.04	r	26		Scouler's willow	Salix scouleriana	10 / 2
0.04				Jct. new trail; jog right across it on new boardwalk that crosses a small drainage
0.07	l	27		wild tarragon	Artemisia dracunculus	50 / 9
				Jct. with north fork of Long Valley Creek, coming from Round and Tamarack Valleys. The following 21 species are in the creek area within 100 feet or so of the trail, given in alphabetical order:
0.08	l	28		yarrow	Achillea millefolium	99 / 1
0.08	b	29		Idaho bentgrass	Agrostis idahoensis	99 / 1
0.08	l	30		western columbine	Aquilegia formosa	1 / 1
0.08	l	31		abrupt-beak sedge	Carex abrupta	25 / 1
0.08	l	32		fragile sheath sedge	Carex fracta	1 / 1
0.08	l	33		Martin's paintbrush	Castilleja applegatei ssp. martinii	6 / 2
0.08	r	34		brittle bladder fern	Cystopteris fragilis	2 / 1
0.08	l	35		Nevada cinquefoil	Drymocallis lactea var. lactea	99 / 1
0.08	l	36		willowherb	Epilobium ciliatum	10 / 1
0.08	l	37		western wallflower	Erysimum capitatum var. capitatum	99 / 3
0.08	l	38		toad rush	Juncus bufonius	99 / 1
0.08	l	39		long-anthered rush	Juncus macrandrus	2 / 1
0.08	l	40		floriferous monkeyflower	Mimulus floribundus	99 / 1
0.08	r	41		musk monkeyflower	Mimulus moschatus	20 / 1
0.08	b	42		primrose monkeyflower	Mimulus primuloides var. primuloides	99 / 1
0.08	l	43		larger mountain monkeyflower	Mimulus tilingii	20 / 1
0.08	l	44		San Gabriel beardtongue	Penstemon labrosus	10 / 1
0.08	l	45		pearlwort	Sagina saginoides	1 / 1
0.08	r	46		snow-plant	Sarcodes sanguinea	4 / 4
0.08	l	47		ranger's buttons	Sphenosciadium capitellatum	/ 1
0.08	l	48		thyme-leaved speedwell	Veronica serpyllifolia ssp. humifusa	10 / 1
0.08				Check for Deschampsia elongata and Thalictrum fendleri
0.08				Now back on trail in trail order; cross creek on wood plank bridge
0.11	r			Sign: "Permit required"
0.12				Small switchback right
0.12	r	49		lodgepole pine	Pinus contorta ssp. murrayana	99 / 9
0.12	b	50		Parish's campion	Silene parishii	35 / 3
0.12				Small switchback left
0.14	b	51		San Jacinto lupine	Lupinus hyacinthinus	99 / 9
0.15				Switchback right
0.24				Trail turns left 90°
0.25				Switchback right
0.26				Switchback left
0.26	r	52		bush chinquapin	Chrysolepis sempervirens	65 / 9
0.28				Four switchbacks in next 0.04 miles
0.29	l	53		Ross' sedge	Carex rossii	75 / 9
0.34	b	54		Nevin's bird's beak	Cordylanthus nevinii	99 / 1
0.35				Trail zigzags up
0.35	r	55		pine lousewort	Pedicularis semibarbata	99 / 2
0.47				Trail enters large flattish area extending for 1/4 mile
0.47		56		pussy paws	Calyptridium monospermum	99 / 1
0.47	l	57		San Jacinto Mtns. daisy	Erigeron breweri var. jacinteus	99 / 2
0.48	r	58		curl-leaf mountain-mahogany	Cercocarpus ledifolius	20 /
				The following three species are in the flat area to the left:
		59		green-leaf manzanita	Arctostaphylos patula	2 / 1
		60		mountain red-root cryptantha	Cryptantha micrantha var. lepida	/ 1
		61		mountain whitethorn	Ceanothus cordulatus	3 / 3
				Back on trail
0.58	b	62		plain mariposa lily	Calochortus invenustus	2 / 1
0.58				Cross small drainage
0.59	r	63		white catch-fly	Silene verecunda	10 / 2
0.63				Cross western branch of south fork of Long Valley Creek, a very minor drainage here; trail resumes going up
0.65	r	64		spotted coralroot	Corallorhiza maculata	1 / 1
0.81	r			Jct. high Round Valley Trail; go right. Sign: "[ahead] Willow Creek 2.7 mi; Saddle Junction 4.8 mi; Humber Park 6.8 mi; [back] Long Valley 1 mi; Tram 1.3 mi; [right] Round Valley 2 mi; San Jacinto Peak 5.5 mi". Hidden Divide is 0.29 miles straight ahead if you want a side excursion.
1.05	l	65		Southern California rock draba	Draba saxosa	36 / 1
1.12				Cross same western branch of south branch of Long Valley Creek at higher elevation
1.22	r			Concrete post
1.35	b	66		dusky onion	Allium campanulatum	99 / 4
1.40	r			one-sided bluegrass	Poa secunda ssp. secunda	/
1.45	l			(Burlew's onion, Allium burlewii; southern mountain-monardella, Monardella australis ssp. australis, several hundred feet to left)
1.48		67		Burlew's onion	Allium burlewii	99 / 3
1.50				Now in another flattish area, the higher elevation extension of the previous flattish area
1.60	r			(rosy everlasting, pussytoes, Antennaria rosea)
1.74	l	68		rosy everlasting, pussytoes	Antennaria rosea	2 / 1
1.79				High point on route, elevation ~8980 feet (2737 m)
1.92	r	69		mountain gooseberry	Ribes montigenum	9 / 1
1.93				Jct. low Round Valley Trail; end guide; go right to return to Tram Station
3.44				Ranger Station

Mile: 0.00 includes all mileages from 0.000 to 0.009; etc.

S: Side of trail on which the first occurrence is found: left, right, both, or center

#: Species are numbered in order of first occurrence on trail. Unlike most of our plant trail guides, off-trail species are numbered as long as they are easily reachable from the trail. Species that are not visible from the trail, or are difficult to reach, are in parentheses.

id?: Species without an entry in this column are positively identified. "?" means we are just guessing the identification; "sp" means the genera is probably known, but the species name is uncertain; "~" means we have 95% confidence that this is the determination, but have not yet positively identified it; "ssp" means the subspecies or variety needs to be determined.

#here gives the minimum number of on-trail plants of this species on this trail, with the number of locations on this trail following the /, using maximum values of 99/9. 1/1 means a single plant in a single location; 10/9 means 10 plants occurring in at least 9 locations, etc.

http://tchester.org/sb/plants/guides/round_valley_loop.html
Updated 29 June 2017.