Plant Guide to East Grade Project Trail, Cleveland National Forest, Palomar Mountain 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
The Plant Guide
Comments On Specific Species
Introduction (Most of intro to be added.)
Directions to trailhead: the easiest way for most people is probably to go up the East Grade Road (S7) from its southwest end at SR76, which is immediately west of the dam for Lake Henshaw. See Thomas Brothers Map 409 H8 for San Diego County.
The parking area is somewhat obscure, and hard to find sometimes even for people who have been there previously. The Cleveland National Forest Parking Area is immediately east of mile marker 6.00 on the East Grade Road, on the north side. On the east side of the parking area is the gated road for this route.
WGS84 coordinates for the trailhead are:
33.28214
116.78827
3960 feetNAD27 coordinates for the trailhead are:
33.28211
116.78740NAD27 is the coordinate system datum used by USGS topographic maps; WGS84 is the coordinate system datum used by most GPS receivers unless you have reset yours. The sets of coordinates given here aren't exact translations, but result from reading the position of the trailhead, as located by my mouse, on two different times.
The road descends at first, heading toward this position:
WGS84
33.28393
116.78657NAD27
33.28386
116.78574This position is just given to make you feel confident you are heading in the right direction on the right road; the trail curves to the left after reaching the rough area of this position.
This list resulted from a fairy quick initial reconnaissance of this trail ("drive-by botanizing"). As a result, it is definitely incomplete, especially near the beginning, and may contain a few erroneous identifications. The first occurrence of many species is earlier than given here.
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. We had 62 trails in our database when this histogram was made. A number of "1" means the taxon has only been found on this trail among the trails in our database.
Number of Trails
Containing A TaxonNumber Of Taxa
On This Trail% of Taxa
On This Trail1 13 11% 2 15 13% 3 8 7% 4 7 6% 5 10 9% 6 5 4% 7 4 3% 8 6 5% 9 4 3% 10 2 2% 11 4 3% 12 4 3% 13 6 5% 14 1 1% 15 2 2% 16 1 1% 17 3 3% 18 4 3% 19 0 0% 20 2 2% 21 0 0% 22 1 1% 23 1 1% 24 1 1% 25 2 2% 26 4 3% 27 0 0% 28 1 1% 29 0 0% 30 4 3% 31 1 1% 32 1 1% Total Taxa 117 100% We found 7 additional species not in the above table, since they have not been identified yet. The unidentified ones are marked with ? or sp in the id? column in the guide.
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 Date Visit # # taxa # "?" # "sp" # "~" # "ssp" 7/3/2003 1 124 2 15 8 13
The Plant Guide Version for printing, without lines and other text on this page (6 pages)
Mile # S id? Common Name Latin Name #here #all 0.00 Begin hike at Cleveland National Forest Parking Area immediately east of mile marker 6.00 on the East Grade Road, north side. This guide is not our usual Trail Plant Guide; it lists only some of the plants along the route noted on a single fairly high-speed walk. Many of the first occurrences of these species are earlier than noted here. The first part of the trail is downhill. 0.00 1 b Coulter pine Pinus coulteri 50 / 9 8 0.00 2 r *ripgut brome Bromus diandrus / 30 0.00 3 r sp southern montane grape lupine Lupinus excubitus var. austromontanus 5 / 1 2 0.00 4 r golden yarrow Eriophyllum confertiflorum var. confertiflorum / 30 0.00 5 l climbing bedstraw Galium nuttallii ssp. nuttallii / 13 0.00 6 b California thistle Cirsium occidentale var. californicum 40 / 9 7 0.00 7 l California-aster Lessingia filaginifolia var. filaginifolia 99 / 9 32 0.00 8 r sp grand mountain dandelion Agoseris grandiflora 10 / 9 7 0.00 9 r ssp sticky cinquefoil Potentilla glandulosa 10 / 9 2 0.00 10 r ssp narrowleaf bedstraw Galium angustifolium ssp. angustifolium / 31 0.00 11 r *slender wild oats Avena barbata / 18 0.01 Gate with sign: "Road Closed" (for vehicles) 0.01 12 r Mexican manzanita Arctostaphylos pungens 30 / 9 2 0.01 13 r canyon live oak Quercus chrysolepis 30 / 9 15 0.01 14 b Palmer's ceanothus Ceanothus palmeri 10 / 9 4 0.01 15 r ~ goldenstar Bloomeria crocea / 5 0.01 16 r ~ Parish's rupertia Rupertia rigida 5 / 5 1 0.01 17 b ssp blue wildrye Elymus glaucus ssp. glaucus 30 / 9 13 18 r white fir Abies concolor / 11 19 r goldenrod Solidago californica 30 / 3 18 20 r ssp *rattail fescue Vulpia myuros var. myuros / 9 21 r slender sunflower Helianthus gracilentus 10 / 1 7 22 r leafy daisy Erigeron foliosus var. foliosus 30 / 5 26 23 r poison oak Toxicodendron diversilobum / 28 24 r southern honeysuckle Lonicera subspicata var. denudata 50 / 9 25 25 l bristly bird's beak Cordylanthus rigidus ssp. setigerus 20 / 9 18 26 r ~ *narrowleaf filago Filago gallica / 26 27 l Spanish clover Lotus purshianus var. purshianus 50 / 9 13 28 r yarrow Achillea millefolium 20 / 9 5 29 l *soft chess Bromus hordeaceus / 24 30 r silver puffs Uropappus lindleyi 20 / 9 15 31 l slender madia Madia gracilis 20 / 2 6 32 r mugwort Artemisia douglasiana / 20 33 l sp tomcat clover Trifolium willdenovii 10 / 1 8 34 l California black oak Quercus kelloggii / 8 35 l California sweet-cicely Osmorhiza brachypoda 30 / 5 4 36 r chaparral whitethorn Ceanothus leucodermis / 8 37 l southern coast live oak Quercus agrifolia var. oxyadenia / 5 38 r western ragweed Ambrosia psilostachya 50 / 9 22 39 l ssp squirreltail Elymus elymoides / 3 Tree down on road; go to the right around it. 40 r ssp San Felipe monardella Monardella nana ssp. leptosiphon 10 / 1 1 41 l southern tauschia Tauschia arguta 1 / 1 3 42 l one-sided bluegrass Poa secunda ssp. secunda 30 / 9 18 43 l ~ western morning-glory Calystegia occidentalis ssp. fulcrata 10 / 2 5 44 l southern mule's ears Wyethia ovata 5 / 1 4 45 l sp Bishop's lotus Lotus strigosus 2 / 1 17 46 l sp silky lotus Lotus heermannii var. heermannii 5 / 5 6 47 l ? Wright's buckwheat Eriogonum wrightii 1 / 1 2 48 l white everlasting Gnaphalium canescens ssp. microcephalum 10 / 5 26 49 l *downy brome Bromus tectorum / 17 50 l holly-leaf navarretia Navarretia atractyloides 99 / 9 2 51 l ssp slender cottonweed Micropus californicus var. californicus 20 / 1 5 52 l flax-flowered linanthus Linanthus liniflorus 5 / 1 2 53 l common linanthus Linanthus parviflorus 5 / 1 5 54 l splendid mariposa lily Calochortus splendens 5 / 2 11 55 l autumn willowweed Epilobium brachycarpum 1 / 1 1 56 l *redstem filaree Erodium cicutarium / 30 57 l *English plantain Plantago lanceolata 50 / 9 12 58 r squawbush Rhus trilobata 2 / 1 12 59 c *pineapple weed Chamomilla suaveolens / 12 60 l coast Indian paintbrush Castilleja affinis ssp. affinis 1 / 1 3 61 l birch-leaf mountain-mahogany Cercocarpus betuloides var. betuloides 1 / 1 13 0.44 62 l deergrass Muhlenbergia rigens 1 / 1 11 0.44 63 l western sycamore Platanus racemosa / 16 0.44 64 b velvet ash Fraxinus velutina 1 / 1 3 0.44 65 l diamond-petaled clarkia Clarkia rhomboidea 20 / 1 3 0.44 66 l few-flowered heterocodon Heterocodon rariflorum 10 / 1 1 0.44 67 l California wild rose Rosa californica 10 / 2 9 0.44 68 b ocellated Humboldt lily Lilium humboldtii ssp. ocellatum 5 / 1 2 0.44 69 l cotton-batting plant Gnaphalium stramineum 5 / 1 7 0.44 70 l Durango root Datisca glomerata 5 / 1 2 0.44 71 l ssp toad rush Juncus bufonius / 1 0.44 72 r purple clarkia Clarkia purpurea ssp. quadrivulnera 3 / 1 12 0.44 73 r large-flowered collomia Collomia grandiflora 5 / 2 2 0.44 74 r California wood fern Dryopteris arguta 1 / 1 6 0.44 75 l ~ small-head field clover Trifolium microcephalum 3 / 1 4 0.44 Cross first creek 0.44 76 r western choke-cherry Prunus virginiana var. demissa 1 / 1 5 0.44 77 l ~ cows clover Trifolium wormskioldii 5 / 1 3 0.44 78 l sp iris-leaved rush Juncus sp. 5 / 1 0.44 79 l sp scarlet monkeyflower Mimulus cardinalis 11 5 0.44 80 l white bluecup Githopsis diffusa ssp. candida+ 5 / 1 1 0.45 81 l ssp hoary coffeeberry Rhamnus tomentella ssp. tomentella 1 / 1 2 82 l ssp whorledleaf penstemon Keckiella ternata var. ternata 5 / 5 5 83 l saw-toothed goldenbush Hazardia squarrosa var. grindelioides 5 / 5 23 84 r sp Pacific sanicle Sanicula crassicaulis 5 / 1 9 85 l sp rein orchid Piperia sp. 1 / 1 86 l triangular-fruit sedge Carex triquetra 1 / 1 10 87 l *red brome Bromus madritensis ssp. rubens / 30 0.49 88 l ssp western vervain Verbena lasiostachys 5 / 1 2 0.49 89 l ~ Pacific rush Juncus effusus var. pacificus 1 / 1 3 0.49 90 l sp upright knotweed Polygonum sp. 1 / 1 0.49 91 l willowherb Epilobium ciliatum ssp. ciliatum 1 / 1 10 0.49 Cross second creek. 0.49 92 l sp speedwell Veronica sp. 1 / 1 0.49 93 l sp slimy monkeyflower Mimulus sp. 1 / 1 0.49 94 l winter cress Barbarea orthoceras 5 / 1 4 0.49 95 l little spring beauty Claytonia exigua ssp. exigua 5 / 1 3 0.49 96 l ssp fragrant everlasting Gnaphalium canescens ssp. beneolens 1 / 1 2 0.49 97 l annual malacothrix Malacothrix clevelandii 20 / 1 2 0.49 98 l ? green dock? Rumex sp.? 5 / 1 0.49 99 l California chicory Rafinesquia californica 1 / 1 14 0.49 100 l threadstem Pterostegia drymarioides 5 / 1 13 101 b sticky false-gilia Allophyllum glutinosum 20 / 3 4 0.57 102 l lesser paintbrush Castilleja minor ssp. spiralis 1 / 1 1 0.57 Cross drier drainage with a small meadowy area. 0.57 103 l southern bluecurls Trichostema austromontanum ssp. austromontanum 10 / 1 1 0.57 104 l canchalagua Centaurium venustum 10 / 1 4 0.57 105 l western marsh cudweed Gnaphalium palustre 10 / 1 1 0.57 106 l false monkeyflower Mimulus pilosus 10 / 1 1 0.57 The next four species were off-trail along the drainage 0.57 107 l southern skullcap Scutellaria bolanderi ssp. austromontana 10 / 1 2 0.57 108 l ssp checkerbloom Sidalcea malvaeflora ssp. sparsifolia 5 / 5 13 0.57 109 r California buttercup Ranunculus californicus+ 10 / 1 5 0.57 110 r superb mariposa lily Calochortus superbus 3 / 1 1 0.58 Y-jct at low point on road. Go left along the obvious road, uphill; the road to the right is obscure. 0.58 111 l ~ twiggy wreath plant Stephanomeria virgata 5 / 1 8 0.58 112 b Patagonia plantain Plantago patagonica 30 / 1 1 0.58 113 l *wall bedstraw Galium parisiense 10 / 1 1 0.58 114 b popcorn flower Cryptantha intermedia 20 / 1 17 115 r sp Parish' Jacumba milk-vetch Astragalus douglasii var. parishii 1 / 1 2 The next portion of the guide is even more incomplete, since we were hurrying to get to the turnaround point. 0.69 116 l California everlasting Gnaphalium californicum 1 / 1 20 0.78 117 r blue dicks Dichelostemma capitatum ssp. capitatum 2 / 1 26 0.84 118 l scarlet bugler Penstemon centranthifolius 1 / 1 6 0.89 119 l sp yellow mariposa lily Calochortus weedii var. weedii 5 / 3 6 120 l sp violet Viola sp. 1 / 1 121 l California coffeeberry Rhamnus californica ssp. californica 1 / 1 11 122 r Parish's purple nightshade Solanum parishii 1 / 1 8 123 r dove weed Eremocarpus setigerus 5 / 1 9 124 l mule fat Baccharis salicifolia 1 / 1 25 0.99 Turnaround; return to trailhead.
Comments On Specific Species Githopsis diffusa ssp. candida. The upper stems on these plants are 0.5-0.6 mm wide, and the corollas are 4.5 mm, making them ssp. candida using the Jepson Manual key. However, the corolla lobes are 1.5 mm, and ovary is 3.1-4.2 times longer than wide, which are typical of ssp. filicaulis and outside the ranges given for ssp. candida in the Jepson Manual.
Ranunculus californicus. These plants are clearly R. californicus, with the following distribution of the number of petals per flower:
# Petals Frequency 5 2 6 2 7 5 8 12 9 8 10 4 11 4 12 1 In contrast, the Ranunculus occidentalis at Palomar Mountain State Park has a strong peak at 5 petals in its histogram.
We thank an anonymous person for their assistance in finding species on our 7/03/03 visit.
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Copyright © 2003-2005 by Tom Chester, Wayne Armstrong and James Dillane.
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Comments and feedback: Tom Chester | Wayne Armstrong
Updated 15 July 2005.