Plant Guide to Round Valley Trail, San Jacinto Mountains

MileS#id?Common NameLatin Name#here
0.00lBegin guide at sign just southwest of Ranger Station: "Round Valley Trail; Wilderness Permit Required", 0.22 miles from Tram Station; elevation ~8390 feet (2557 m).
0.00b1Jeffrey pinePinus jeffreyi50 / 9
0.00b2wild tarragonArtemisia dracunculus50 / 9
0.00r3San Jacinto buckwheatEriogonum apiculatum5 / 1
0.01l4San Gabriel beardtonguePenstemon labrosus50 / 5
0.02r5San Bernardino rubber rabbitbrushEricameria nauseosa var. bernardina+99 / 9
0.02b6white firAbies concolor99 / 9
0.05r7sugar pinePinus lambertiana50 / 9
0.06l8San Jacinto Mts. keckiellaKeckiella rothrockii var. jacintensis99 / 9
0.06l9Parish's snowberrySymphoricarpos rotundifolius var. parishii99 / 9
0.06l10western wallflowerErysimum capitatum var. capitatum10 / 2
0.06r11green-leaf manzanitaArctostaphylos patula5 / 2
0.07r12granite prickly phloxLinanthus pungens /
0.09l13Nevin's bird's beakCordylanthus nevinii10 / 1
0.09l14little-leaf mock orangePhiladelphus microphyllus /
0.12lJct. Long Valley to 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"
0.12l15Fremont's goosefootChenopodium fremontii10 / 2
0.13l16western needlegrassStipa occidentalis var. occidentalis10 / 1
0.14l17mountain California-fuchsiaEpilobium canum ssp. latifolium /
0.14r18curl-leaf mountain-mahoganyCercocarpus ledifolius /
0.14l19goldenrodSolidago velutina ssp. californica30 / 1
0.14b20Fendler's blue grassPoa fendleriana ssp. longiligula5 / 1
0.14l21Parish's bedstrawGalium parishii8 / 2
The following 6 species are near the trail in the small drainage, given in alphabetical order
0.14r22mountain rock-cressBoechera retrofracta X1 / 1
0.14l23groundsmokeGayophytum diffusum ssp. parviflorum20 / 4
0.14l24Cleveland's horkeliaHorkelia clevelandii var. clevelandii50 / 1
0.14l25Brewer's monkeyflowerMimulus breweri99 / 4
0.14l26false monkeyflowerMimulus pilosus99 / 4
0.14l27Suksdorf's monkeyflowerMimulus suksdorfii10 / 2
Back in trail order
0.15Trail begins series of minor high and low points, staying close to 8400 feet (2560 m)
0.21r28bush chinquapinChrysolepis sempervirens50 / 9
The following 25 species are in a span of ~150 feet of the Long Valley Creek drainage, given in alphabetical order
0.25l29yarrowAchillea millefolium99 / 1
0.25l30Idaho bentgrassAgrostis idahoensis40 / 2
0.25l31western columbineAquilegia formosa10 / 4
0.25l32abrupt-beak sedgeCarex abrupta10 / 1
0.25l33fragile sheath sedgeCarex fracta99 / 5
0.25l34brown sedgeCarex subfusca99 / 9
0.25l35giant red paintbrushCastilleja miniata ssp. miniata1 / 1
0.25l36slender hairgrassDeschampsia elongata10 / 1
0.25l37Nevada cinquefoilDrymocallis lactea var. lactea20 / 3
0.25l38willowherbEpilobium ciliatum5 / 1
0.25l39western marsh cudweedGnaphalium palustre20 / 2
0.25l40long-anthered rushJuncus macrandrus5 / 1
0.25l41floriferous monkeyflowerMimulus floribundus50 / 3
0.25l42primrose monkeyflowerMimulus primuloides var. primuloides20 / 1
0.25l43larger mountain monkeyflowerMimulus tilingii30 / 2
0.25l44southern mountain-monardellaMonardella australis ssp. australis20 / 4
0.25l45mat muhlyMuhlenbergia richardsonis20 / 2
0.25l46pine lousewortPedicularis semibarbata40 / 5
0.25l47mountain pink currantRibes nevadense30 / 9
0.25l48thimbleberryRubus parviflorus30 / 3
0.25l49willow-leaved dockRumex salicifolius20 / 2
0.25l50pearlwortSagina saginoides1 / 1
0.25l51Scouler's willowSalix scouleriana40 / 5
0.25l52ranger's buttonsSphenosciadium capitellatum99 / 9
0.25l53mountain carpet cloverTrifolium monanthum ssp. grantianum99 / 5
Back in trail order; the following two species are in the drainage
0.28l54brittle bladder fernCystopteris fragilis20 / 3
0.28l55snow-plantSarcodes sanguinea5 / 3
0.29l56bitter cherryPrunus emarginata10 / 2
0.33rJct. use trail to "Beach / Shangri-La"
0.33Trail turns left 90°, then right
0.33lyellow form of San Gabriel beardtongue, Penstemon labrosus
The following two species are in the drainage
0.35l57swamp sedgeCarex senta99 / 9
0.35l58tall mannagrassGlyceria elata99 / 9
0.39r59canyon live oakQuercus chrysolepis1 / 1
0.39l60western polypodyPolypodium hesperium5 / 1
0.41b61lodgepole pinePinus contorta ssp. murrayana99 / 9
0.41Cross small drainage on sturdy wooden bridge
0.41l62musk monkeyflowerMimulus moschatus99 / 9
0.47The former tight squeeze through rock walls and tree trunk here has been opened up by building up the trail surface!
0.48r63mountain whitethornCeanothus cordulatus1 / 1
0.49r64San Jacinto lupineLupinus hyacinthinus99 / 9
0.48l65wax currantRibes cereum var. cereum2 / 2
0.49l66*common cudweedPseudognaphalium luteoalbum40 / 1
0.49l67white catch-flySilene verecunda5 / 2
0.49r68mountain sprayHolodiscus discolor var. microphyllus1 / 1
0.49r69Parish's campionSilene parishii15 / 5
0.49r70western azaleaRhododendron occidentale5 / 2
0.54r71beautiful hulseaHulsea vestita ssp. callicarpha1 / 1
0.54rJct. use trail to Tamarack Campground
0.55Trail turns left to cross Long Valley Creek
0.55rSign: "Round Valley (ahead)"
0.55Cross Long Valley Creek in middle of a switchback left; elevation ~8475 feet (2583 m)
0.55l72forest goosefootChenopodium atrovirens10 / 2
0.55l73changeable phaceliaPhacelia mutabilis10 / 5
0.56First of a number of tight switchbacks; trail now climbs significantly
0.58b74Martin's paintbrushCastilleja applegatei ssp. martinii1 / 1
0.60l75pinedropsPterospora andromedea1 / 1
0.68Minor local high point
0.77r76mountain gooseberryRibes montigenum99 / 9
0.78r77limber pinePinus flexilis20 / 9
0.88Begin switchbacks on slope separating Long Valley from Round and Tamarack Valleys
0.90r(Two waterfalls)
0.90r(California corn lily, Veratrum californicum var. californicum)
0.92l78brackenPteridium aquilinum var. pubescens30 / 3
0.97l79Ross' sedgeCarex rossii20 / 5
1.01Trail is less steep for a while now
1.01rBegin small meadowy area at Round Valley Creek. The following 9 species are in a span of ~150 feet along that creek, given in alphabetical order
1.01r80purple false-giliaAllophyllum divaricatum99 / 1
1.01r81dense false-giliaAllophyllum gilioides ssp. violaceum10 / 1
1.01r82rosy everlasting, pussytoesAntennaria rosea / 1
1.01r83plain mariposa lilyCalochortus invenustus30 / 1
1.01r84toad lilyMontia chamissoi20 / 4
1.01r85Sierra nemophilaNemophila spatulata /
1.01r86Douglas' knotweedPolygonum douglasii50 / 1
1.01r87California corn lilyVeratrum californicum var. californicum99 / 9
1.01r88thyme-leaved speedwellVeronica serpyllifolia ssp. humifusa25 / 2
Back in trail order
1.05l89pussy pawsCalyptridium monospermum10 / 2
1.12r90few-flowering meadow-rueThalictrum sparsiflorum10 / 2
white bog orchidPlatanthera dilatata var. leucostachys5 / 2
1.17r91spotted coralrootCorallorhiza maculata1 / 1
1.42lJct. Round Valley to Willow Creek trail; elevation 8960 feet (2731 m); Sign: "[left] Willow Creek Trail 3.8 mi; [back] Long Valley 1.7 mi; [ahead] Round Valley 0.3 mi"
1.44r92mountain sweet-cicelyOsmorhiza berteroi10 / 2
1.52r(Begin Round Valley Meadow)
1.63b93California geraniumGeranium californicum10 / 1
1.63l94western bistortBistorta bistortoides5 / 1
1.63l95Kentucky blue grassPoa pratensis ssp. agassizensis20 / 1
1.63l96vari-nerved sedgeCarex heteroneura2 / 1
1.63l97slender buttercupRanunculus alismifolius var. alismellus10 / 1
1.64The following three species were previously found in the formerly wet drainage to the left, which was totally dry in 2017
1.64l98hairy wood rushLuzula comosa1 / 1
1.64l99small white violetViola macloskeyi5 / 1
lTrail to his and her outhouses (toilets)
1.87rNice long log for a rest stop
1.89Jct. trails to Wellman Divide (l) and Tamarack Valley (r); go left; elevation 9040 feet (2755 m). Sign: "[left] Wellman Divide 1 mi; San Jacinto Peak 3.3 mi; Saddle Junction 4.3 mi; Humber Park 6.8 mi; [right] Tamarack Valley 0.5 mi; [back] Long Valley 2.0 mi; Willow Creek 4.0 mi; Saddle Junction 5.5 mi"
1.89rTapped spring with available water (needs treatment)
2.67Wellman Divide; elevation ~9720 feet (2963 m); Sign: "[right] San Jacinto Peak 2.3 mi; [back] Round Valley 1.0 mi; Long Valley 3.0 mi"
http://tchester.org/sb/plants/guides/round_valley.html
Updated 9 July 2017.