Plant Guide to Round Valley Loop Trail, San Jacinto Mountains

Plant Guide to Round Valley Loop Trail, San Jacinto Mountains

Mile S # id? Common Name Latin Name #here #all
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 (sugar pine, Pinus lambertiana)
0.00 r 1 Parish's snowberry Symphoricarpos rotundifolius var. parishii 99 / 9 18
0.00 l (white fir, Abies concolor; Jeffrey pine, Pinus jeffreyi; San Jacinto Mts. Keckiella, Keckiella rothrockii var. jacintensis)
0.00 r (San Bernardino rubber rabbitbrush, Chrysothamnus nauseosus ssp. bernardinus)
0.01 r 2 ? needlegrass? Achnatherum sp.? 20 / 2
0.01 b 3 white fir Abies concolor 99 / 9 32
0.01 l (mountain spray, Holodiscus microphyllus var. microphyllus)
0.01 r 4 Jeffrey pine Pinus jeffreyi 50 / 9 34
0.02 l 5 granite prickly phlox Leptodactylon pungens 2 / 2 15
0.02 l 6 mountain California-fuchsia Epilobium canum ssp. latifolium 10 / 1 13
0.03 r 7 mountain spray Holodiscus microphyllus var. microphyllus 2 / 1 13
0.03 l 8 wax currant Ribes cereum var. cereum 1 / 1 21
0.04 l 9 San Bernardino rubber rabbitbrush Chrysothamnus nauseosus ssp. bernardinus 20 / 5 28
0.04 r 10 Scouler's willow Salix scouleriana 2 / 1 11
0.04 Cross small drainage
0.07 r 11 San Jacinto Mts. keckiella Keckiella rothrockii var. jacintensis 99 / 9 12
0.08 b 12 sp sedge Carex like fracta 20 / 3
0.08 Cross north fork of Long Valley Creek, coming from Round and Tamarack Valleys
0.08 b 13 Idaho bentgrass Agrostis idahoensis 10 / 1 11
0.08 b 14 Nevada cinquefoil Potentilla glandulosa ssp. nevadensis 2 / 1 4
0.08 l (Fendler's meadow-rue, Thalictrum fendleri var. fendleri)
0.09 l 15 wild tarragon Artemisia dracunculus 40 / 9 32
0.14 r 16 Parish's bedstraw Galium parishii 1 / 1 14
0.14 r Sign: "Permit required"
0.15 Switchback right; no further switchbacks recorded
0.17 b 17 San Jacinto lupine Lupinus hyacinthinus 50 / 9 13
0.22 b 18 lodgepole pine Pinus contorta ssp. murrayana 99 / 9 15
0.22 b 19 sugar pine Pinus lambertiana 20 / 9 22
0.28 r 20 bush chinquapin Chrysolepis sempervirens 10 / 4 17
0.48 Trail enters large flattish area extending for 1/4 mile
0.53 l (green-leaf manzanita, Arctostaphylos patula)
0.53 l 21 ? unk per like paintbrush or catchfly Castilleja or Silene? 1 / 1
0.53 l 22 sp mystery sedge Carex sp. 10 / 5
0.53 l (mountain whitethorn, Ceanothus cordulatus)
0.61 Cross small drainage
0.65 r 23 western wallflower Erysimum capitatum ssp. capitatum 10 / 2 29
0.66 (CHECK!) Cross western branch of south branch of Long Valley Creek
0.83 r Jct. high Round Valley Trail; go right (see end of guide for option to go to Hidden Divide first). 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"
1.13 (CHECK!) Cross same western branch of south branch of Long Valley Creek at higher elevation
1.40 r 24 sp pinegrove groundsmoke or groundsmoke Gayophytum diffusum ssp. parviflorum or G. oligospermum 20 / 2
1.45 l 25 pine lousewort Pedicularis semibarbata 1 / 1 16
1.52 Now in another flattish area, the higher elevation extension of the previous flattish area
1.78 l Check for different annual
1.81 High point on route, elevation ~8980 feet (2737 m)
1.96 Jct. low Round Valley Trail; end guide; go right to return to Tram Station
3.47 Ranger Station

Option to continue to Hidden Divide from mile 0.83:
0.83 r Jct. high Round Valley Trail; continue ahead to go to Hidden Divide; local high point, elevation ~8760 feet (2670 m)
0.90 l 26 mountain whitethorn Ceanothus cordulatus 1 / 1 24
0.94 l (curl-leaf mountain-mahogany, Cercocarpus ledifolius)
1.02 Local low point, elevation ~8700 feet (2652 m)
1.12 Hidden Divide. No views from here, but can see Red Tahquitz Peak just past the saddle; return to high Round Valley Trail to follow rest of guide
1.41 Jct. high Round Valley Trail; go left to follow rest of guide from mile 0.83 above

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
#: On-Trail species are numbered in order of first occurrence on trail (touchable without leaving the trail). Off-trail species 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.
#all gives the number of plant trail guides, from all over southern California, that contain this taxon.
http://tchester.org/sb/plants/guides/round_valley_loop.html
Updated 29 August 2007.

Mile	S	#	id?	Common Name	Latin Name	#here	#all
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			(sugar pine, Pinus lambertiana)
0.00	r	1		Parish's snowberry	Symphoricarpos rotundifolius var. parishii	99 / 9	18
0.00	l			(white fir, Abies concolor; Jeffrey pine, Pinus jeffreyi; San Jacinto Mts. Keckiella, Keckiella rothrockii var. jacintensis)
0.00	r			(San Bernardino rubber rabbitbrush, Chrysothamnus nauseosus ssp. bernardinus)
0.01	r	2	?	needlegrass?	Achnatherum sp.?	20 / 2
0.01	b	3		white fir	Abies concolor	99 / 9	32
0.01	l			(mountain spray, Holodiscus microphyllus var. microphyllus)
0.01	r	4		Jeffrey pine	Pinus jeffreyi	50 / 9	34
0.02	l	5		granite prickly phlox	Leptodactylon pungens	2 / 2	15
0.02	l	6		mountain California-fuchsia	Epilobium canum ssp. latifolium	10 / 1	13
0.03	r	7		mountain spray	Holodiscus microphyllus var. microphyllus	2 / 1	13
0.03	l	8		wax currant	Ribes cereum var. cereum	1 / 1	21
0.04	l	9		San Bernardino rubber rabbitbrush	Chrysothamnus nauseosus ssp. bernardinus	20 / 5	28
0.04	r	10		Scouler's willow	Salix scouleriana	2 / 1	11
0.04				Cross small drainage
0.07	r	11		San Jacinto Mts. keckiella	Keckiella rothrockii var. jacintensis	99 / 9	12
0.08	b	12	sp	sedge	Carex like fracta	20 / 3
0.08				Cross north fork of Long Valley Creek, coming from Round and Tamarack Valleys
0.08	b	13		Idaho bentgrass	Agrostis idahoensis	10 / 1	11
0.08	b	14		Nevada cinquefoil	Potentilla glandulosa ssp. nevadensis	2 / 1	4
0.08	l			(Fendler's meadow-rue, Thalictrum fendleri var. fendleri)
0.09	l	15		wild tarragon	Artemisia dracunculus	40 / 9	32
0.14	r	16		Parish's bedstraw	Galium parishii	1 / 1	14
0.14	r			Sign: "Permit required"
0.15				Switchback right; no further switchbacks recorded
0.17	b	17		San Jacinto lupine	Lupinus hyacinthinus	50 / 9	13
0.22	b	18		lodgepole pine	Pinus contorta ssp. murrayana	99 / 9	15
0.22	b	19		sugar pine	Pinus lambertiana	20 / 9	22
0.28	r	20		bush chinquapin	Chrysolepis sempervirens	10 / 4	17
0.48				Trail enters large flattish area extending for 1/4 mile
0.53	l			(green-leaf manzanita, Arctostaphylos patula)
0.53	l	21	?	unk per like paintbrush or catchfly	Castilleja or Silene?	1 / 1
0.53	l	22	sp	mystery sedge	Carex sp.	10 / 5
0.53	l			(mountain whitethorn, Ceanothus cordulatus)
0.61				Cross small drainage
0.65	r	23		western wallflower	Erysimum capitatum ssp. capitatum	10 / 2	29
0.66				(CHECK!) Cross western branch of south branch of Long Valley Creek
0.83	r			Jct. high Round Valley Trail; go right (see end of guide for option to go to Hidden Divide first). 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"
1.13				(CHECK!) Cross same western branch of south branch of Long Valley Creek at higher elevation
1.40	r	24	sp	pinegrove groundsmoke or groundsmoke	Gayophytum diffusum ssp. parviflorum or G. oligospermum	20 / 2
1.45	l	25		pine lousewort	Pedicularis semibarbata	1 / 1	16
1.52				Now in another flattish area, the higher elevation extension of the previous flattish area
1.78	l			Check for different annual
1.81				High point on route, elevation ~8980 feet (2737 m)
1.96				Jct. low Round Valley Trail; end guide; go right to return to Tram Station
3.47				Ranger Station

				Option to continue to Hidden Divide from mile 0.83:
0.83	r			Jct. high Round Valley Trail; continue ahead to go to Hidden Divide; local high point, elevation ~8760 feet (2670 m)
0.90	l	26		mountain whitethorn	Ceanothus cordulatus	1 / 1	24
0.94	l			(curl-leaf mountain-mahogany, Cercocarpus ledifolius)
1.02				Local low point, elevation ~8700 feet (2652 m)
1.12				Hidden Divide. No views from here, but can see Red Tahquitz Peak just past the saddle; return to high Round Valley Trail to follow rest of guide
1.41				Jct. high Round Valley Trail; go left to follow rest of guide from mile 0.83 above