Plant Guide to Seven Pines / Marion Mountain Trail Loop, San Jacinto Mountains

This is a working list, about which we make no guarantees at all until we officially release it. Use at your own risk!

Introduction and Explanation of Plant Trail Guides

Introduction
Highlights of This Trail
Fieldwork Dates and Summary of List Changes With Time
Botanical Trip Reports
The Plant Guide
Comments On Specific Species

Introduction

This is a 6.1 mile loop hike, with 2530 feet of elevation gain and 2550 feet of elevation loss, that requires a car shuttle between the Marion Mountain Trailhead and the Seven Pines Trailhead. The one-way car shuttle takes about 15 minutes. Part of the shuttle route is a dirt road that can be easily navigated by high-clearance normal passenger cars.

Highlights of This Trail

The botanical highlights of this trail are:

Number of Unique Taxa On This Trail

The following histogram gives the number of trails in our database that contain each taxon on this trail (not including the taxa seen only off-trail given at the end of the guide). We had 106 trails in our database when this histogram was made; 9 of those trails, including this one, are in this area of San Jacinto Mountain. A number of "1" means the taxon has only been found on this trail among the trails in our database; numbers of "9" or smaller may indicate taxa found only in this area of San Jacinto Mountain.

Number of Trails
Containing A Taxon
Number Of Taxa
On This Trail
% of Taxa
On This Trail
123%
211%
311%
411%
545%
 
1-5911%
6-103443%
11-151418%
16-201013%
21-2568%
26-3034%
31-3523%
36-4000%
41-4511%
46-5000%
51-5511%
Total Taxa80100%

We found 7 additional species not in the above table, since they have not been fully identified yet. The unidentified ones are marked with ? or sp in the id? column in the guide, and have no entries in the #all column.

Fieldwork Dates and Summary of List Changes With Time

The following table gives the dates the trail was walked and taxa recorded. After each visit, the table gives the total number of taxa on the list and the breakdown of the taxa without positive identification. See Explanation of Plant Trail Guides to understand the symbols below.

Visit DateVisit ## taxa# "?"# "sp"# "~"# "ssp"
7/20/200718724115

Botanical Trip Reports

The Plant Guide

Version for printing, without lines and other text on this page: html (5 pages) or pdf Clickbook booklet (2 double-sided pages). (See printing instructions for an explanation of these options)

The mileages in the guide come from Topo!. The total mileage is almost surely slightly underestimated, probably by no more than 10%, due to the tight switchbacks on the trail that are not accurately measured by that program. The elevations come from the topo map, and should be fairly precise.

The guide below does not give most of the switchbacks and other such trail landmarks, since there were way too many of them to record on our first day of fieldwork.

MileS#id?Common NameLatin Name#here#all
0.00   Begin trail at northern end of parking area, at saddle between Fuller Creek and North Fork, elevation 6300 feet (1920 m)
0.00b1spannual buckwheatEriogonum molestum or davidsonii20 / 2 
0.00b2 Sierra Nevada lotusLotus nevadensis var. nevadensis30 / 310
0.00b3 southern mountain woolly-starEriastrum densifolium ssp. austromontanum10 / 114
0.00l4 *downy bromeBromus tectorum20 / 230
0.00l  Sign: "Seven Pines Trail; Deer Springs Trail 3.5 miles; Mt. San Jacinto 9.25 miles"
0.00l5sspsquirreltailElymus elymoides30 / 511
0.00b6?unk annual like Gilia?20 / 2 
0.00b7 pink-bracted manzanitaArctostaphylos pringlei ssp. drupacea30 / 57
0.00l8~purple-root cryptanthaCryptantha micrantha1 / 19
0.00b  (incense-cedar, Calocedrus decurrens; incense-cedar mistletoe, Phoradendron libocedri)
0.00l  (white fir, Abies concolor; Coulter pine, Pinus coulteri)
0.00r  (canyon live oak, Quercus chrysolepis; oak mistletoe, Phoradendron villosum)
0.00 9 ponderosa pinePinus ponderosa20 / 95
0.00r10 Wright's buckwheatEriogonum wrightii var. membranaceum40 / 97
0.00l11 canyon live oakQuercus chrysolepis50 / 931
0.01l  Sign: "Fragile habitat; Creek Closure"
0.01l12 short-flowered monardellaMonardella nana ssp. tenuiflora+40 / 95
0.01l  Sign: "Wilderness Permit Required"
0.01l13 sugar pinePinus lambertiana99 / 918
0.02l14 sulphur buckwheatEriogonum umbellatum var. munzii30 / 911
0.02l15 San Bernardino rubber rabbitbrushChrysothamnus nauseosus ssp. bernardinus50 / 921
0.03l16 Coulter pinePinus coulteri20 / 914
0.03b17 California fuchsiaEpilobium canum99 / 922
    The first specimen of the following species on trail was not recorded:
  18 white firAbies concolor99 / 925
0.05b19 oak mistletoePhoradendron villosum10 / 910
0.07r20 Parish's tauschiaTauschia parishii2 / 16
0.09l21 San Jacinto Mtns. bedstrawGalium angustifolium ssp. jacinticum30 / 93
0.12   First of two close local high points on trail
0.23   Local high point; cross divide for a brief sojourn in canyon of North Fork before returning to Fuller Creek canyon
0.36r  (western azalea, Rhododendron occidentale; snow-plant, Sarcodes sanguinea)
0.37r22 California black oakQuercus kelloggii3 / 316
0.37r23 sugar pine dwarf-mistletoeArceuthobium californicum1 / 11
0.39l24 pinedropsPterospora andromedea10 / 912
0.39r25 rock buckwheatEriogonum saxatile1 / 114
0.43l26 snow-plantSarcodes sanguinea2 / 211
0.60l ~(mountain whitethorn, Ceanothus cordulatus; ~Scouler's willow, ~Salix scouleriana)
0.60r27~beaked penstemonPenstemon rostriflorus50 / 916
0.72   Local high point; cross saddle for another brief sojourn in canyon of North Fork
0.74l28 Jeffrey pinePinus jeffreyi99 / 927
0.75   Switchback left
0.78r  (green-leaf manzanita, Arctostaphylos patula)
0.81r29 spotted coralrootCorallorhiza maculata3 / 18
0.81   Switchback left
0.84   Switchback right
0.85   Switchback left
1.02   Local high point; elevation ~7100 feet (2164 m); cross small saddle and enter North Fork Canyon for rest of trip
1.03r30 mountain whitethornCeanothus cordulatus99 / 921
1.04l  (rock goldenbush, Ericameria cuneata var. cuneata)
1.07   Switchback right
1.09   Switchback left; no more switchbacks noted since there are so many
1.26r31 mountain pink currantRibes nevadense30 / 910
1.26   Local low point; cross small creek
1.27l  Local high point; sign: "Entering Mount San Jacinto State Park Wilderness"
1.27r  (~fragile sheath sedge, ~Carex fracta; thimbleberry, Rubus parviflorus)
1.30r32 western azaleaRhododendron occidentale30 / 97
1.30l33 brackenPteridium aquilinum var. pubescens50 / 917
1.30r34 thimbleberryRubus parviflorus30 / 95
1.32   Cross North Fork of San Jacinto River; elevation 6880 feet (2097 m)
1.32r35 Scouler's willowSalix scouleriana10 / 99
1.34l36 fragile sheath sedgeCarex fracta50 / 912
1.34l37 scarlet monkeyflowerMimulus cardinalis10 / 219
1.34l  (ranger's buttons, Sphenosciadium capitellatum)
1.34   Cross North Fork again
1.34l ?(arrowhead butterweed, Senecio triangularis; lemon lily, Lilium parryi; western columbine, Aquilegia formosa; small cespitose grass, ?; broad-leaved lotus, Lotus crassifolius var. crassifolius; ~tall mannagrass, ~Glyceria elata; Parish's lupine, Lupinus latifolius var. parishii; unk species with old 2 foot dense infl; glaucus willowherb, Epilobium glaberrimum ssp. glaberrimum)
1.36r  (naked buckwheat, Eriogonum nudum var. pauciflorum)
1.36l  (incense-cedar, Calocedrus decurrens)
1.41l38 incense-cedarCalocedrus decurrens20 / 519
1.42r39sspsticky cinquefoilPotentilla glandulosa20 / 7 
1.42b40sspblue wildryeElymus glaucus20 / 78
1.42b41 goldenrodSolidago californica20 / 945
1.47l42spgroundsmokeGayophytum sp.20 / 2 
1.47l43 Sierra gooseberryRibes roezlii var. roezlii30 / 914
1.47r  (Grinnell's beardtongue, Penstemon grinnellii var. grinnellii)
1.50r44 plain mariposa lilyCalochortus invenustus5 / 313
1.51r45 Grinnell's beardtonguePenstemon grinnellii var. grinnellii30 / 421
1.54l46 naked buckwheatEriogonum nudum var. pauciflorum40 / 98
1.71   Trail turns right at saddle
1.80r47 little prince's pineChimaphila menziesii3 / 16
1.86r48 pine lousewortPedicularis semibarbata30 / 914
1.94 49 changeable phaceliaPhacelia mutabilis20 / 99
2.06l50 green-leaf manzanitaArctostaphylos patula+30 / 918
2.13b51~slender wheatgrassElymus trachycaulus10 / 36
2.23l  (bush chinquapin, Chrysolepis sempervirens)
2.26r52spIdaho bentgrassAgrostis idahoensis+10 / 38
2.26r  (Fendler's meadow-rue, )Thalictrum fendleri var. fendleri /  
2.26r53 white catch-flySilene verecunda ssp. platyota10 / 315
2.27l54 Parish's lupineLupinus latifolius var. parishii10 / 28
2.27r  (musk monkeyflower, Mimulus moschatus)
2.28r55 Fendler's meadow-rueThalictrum fendleri var. fendleri5 / 28
2.37b56 beautiful hulseaHulsea vestita ssp. callicarpha5 / 29
2.39r  (blue elderberry, Sambucus mexicana)
2.46b57 bush chinquapinChrysolepis sempervirens30 / 913
2.53l  (wax currant, Ribes cereum var. cereum)
2.56l58 western wallflowerErysimum capitatum ssp. capitatum20 / 324
2.57r59~forest goosefootChenopodium atrovirens /  
2.61r60 ranger's buttonsSphenosciadium capitellatum20 / 58
2.61   Cross North Fork of San Jacinto River; elevation ~8030 feet (2448 m)
2.61r61 arrowhead butterweedSenecio triangularis30 / 51
2.61r62 western columbineAquilegia formosa5 / 29
2.61b63 larger mountain monkeyflowerMimulus tilingii20 / 110
2.61l64sspwillowherbEpilobium ciliatum2 / 1 
2.61r65 glaucus willowherbEpilobium glaberrimum ssp. glaberrimum2 / 16
2.61l66~streambank lotusLotus oblongifolius var. oblongifolius10 / 16
2.61l67sspspreading brown-headed rushJuncus phaeocephalus var. paniculatus10 / 14
2.81l68 Parish's snowberrySymphoricarpos rotundifolius var. parishii30 / 913
2.81l69 California bromeBromus carinatus var. carinatus20 / 929
2.82l70 wax currantRibes cereum var. cereum2 / 216
2.85r  (California corn lily, Veratrum californicum var. californicum)
2.92   Cross side branch of moist drainage
2.98l71 San Jacinto lupineLupinus hyacinthinus20 / 58
2.98r ~(subarctic lady-fern, Athyrium filix-femina var. cyclosorum)
3.02b72 Martin's paintbrushCastilleja applegatei ssp. martinii2 / 119
3.03r73 California corn lilyVeratrum californicum var. californicum5 / 36
3.03   Cross main branch of moist drainage
3.04l  (lodgepole pine, Pinus contorta ssp. murrayana)
3.05   Cross dry third branch of moist drainage
3.06r74spcloverTrifolium sp.3 / 1 
3.06r  (scented shooting star, Dodecatheon redolens)
3.09r75 lodgepole pinePinus contorta ssp. murrayana20 / 910
3.10l  (Large field of ranger's buttons, Sphenosciadium capitellatum)
3.24r76 swamp sedgeCarex senta2 / 19
3.24r  (closest subarctic lady-fern, Athyrium filix-femina var. cyclosorum)
3.24l77~brittle bladder fernCystopteris fragilis2 / 15
3.24   Cross North Fork for last time; elevation 8480 feet (2585 m)
3.24r78~tall mannagrassGlyceria elata10 / 12
3.36   T-Jct. with PCT; highest point on loop; elevation 8640 feet (2633 m); go right; sign "(up): Little Round Valley 2.5; San Jacinto Peak 3.2; ((down): Strawberry Trail 2.5; Suicide Rock Trail 3.8; Banning Highway 6.3; (back): 7 Pines Trail"
3.37r  Jct. Marion Mountain Trail; go right on it
3.63l  (bitter cherry, Prunus emarginata)
3.69b79 broad-leaved lotusLotus crassifolius var. crassifolius20 / 310
3.69r  (western polypody, Polypodium hesperium)
3.69b80 bitter cherryPrunus emarginata20 / 310
3.73r81 Cleveland's horkeliaHorkelia clevelandii5 / 18
4.00r82 Watson's spike-mossSelaginella watsonii10 / 26
4.00r83 giant red paintbrushCastilleja miniata ssp. miniata1 / 110
4.19l  (white-veined wintergreen, Pyrola picta)
4.34l  Big patch of thimbleberry, Rubus parviflorus
4.36l84 blue elderberrySambucus mexicana1 / 154
4.49   Check for Phoradendron on Jeffrey pine or white fir
4.70l  Sign: Wilderness Boundary
  85~bristly bird's beakCordylanthus rigidus ssp. setigerus30 / 535
5.14l86~slender wreathplantStephanomeria exigua ssp. deanei1 / 117
5.68l87 slender everlastingGnaphalium canescens ssp. thermale10 / 28
5.74r  Jct. Campground Trail; stay left; Sign: (left) to Stone Creek Campground 2 mi; (xx?) 1 mi"
5.84l  Check for Gilia
6.11   Trailhead parking for Marion Mountain Trail; elevation 6320 feet (1926 m)

Comments On Specific Species

.


Go to:


Copyright © 2007 by Tom Chester, Dave Stith and Aaron Fellows.
Permission is freely granted to reproduce any or all of this page as long as credit is given to us at this source:
http://tchester.org/sb/plants/guides/7_pines_marion_mtn_loop.html
Comments and feedback: Tom Chester
Updated 25 July 2007.