Plant Guide to Ed Hastey Desert Garden Trail, Santa Rosa Mountains Visitor Center

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

Introduction and Explanation of Plant Trail Guides

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


The Ed Hastey Desert Garden Trail is located at the Visitor Center for the Santa Rosa and San Jacinto Mountains National Monument. The Visitor Center is four miles uphill from the bottom of SR74.

The Hastey Trail primarily contains plants typical of the local area, which is alluvial plain and desert wash. It also contains a small number of plants transplanted from other locations within the Monument.

The trail is 0.19 miles long (0.30 km), and loops from the back of the Visitor Center to its front. The trail can be done in either direction, but this guide is for the counterclockwise route beginning behind the Visitor Center (see map).

The trail is well signed for plants; it has 41 signs labeling 25 different species. Thus a bit over half of the 47 species on the trail are identified with signs. Four species have three labeled specimens; eight species have two labeled specimens; and 13 species have a single labeled specimen.

The trail is named for Ed Hastey, former director of the California office of the Bureau of Land Management for 20 years, who was instrumental in establishing the Monument. Hastey was a leader in promoting ecosystem-based conservation strategies.

Highlights of This Trail

Some of the botanical highlights of this trail are:

Number of Unique Taxa On This Trail

The following histogram gives the number of trails in my database that contain each taxon on this trail. I had 101 trails in our database when this histogram was made; 2 of those trails, including this one, are in this area of Santa Rosa Mountain. A number of "1" means the taxon has only been found on this trail among the trails in my database; numbers of "2" or smaller may indicate taxa found only in this area of Santa Rosa Mountains.

Number of Trails
Containing A Taxon
Number Of Taxa
On This Trail
% of Taxa
On This Trail
Total Taxa47100%

I found 0 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.

The taxa unique to this trail in my plant trail guides, as of 2/17/07, are:

Scientific NameCommon Name
Baileya multiradiata var. multiradiata*desert marigold
Ambrosia deltoidea*triangle leaf bursage
Opuntia echinocarpasilver cholla
Opuntia parryicane cholla
Prosopis pubescensscrew-bean mesquite
Senna covesiiCoves's cassia
Asclepias subulataajamete

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"

The numbers above do not include the three specimens planted from one-gallon pots that were on the trail only during the week of 2/17/07.

Botanical Trip Reports

The Plant Guide

The mileages in the guide are from a GPS of the trail.

If a sign is present for a given species, "Sign: " appears before the common name. The first occurrence of each species is noted in the guide with all columns filled in; subsequent occurrences are only noted if there is a sign. In those cases, only the names are given without the other column information.

Names on the sign occasionally differ from those in my database. If so, if it is the first occurrence on the trail, the name on the sign is given in parentheses with my names. Subsequent occurrences give just the name on the sign.

Taxa not native to the Monument are indicated with an asterisk before the common name.

Version for printing, without lines and other text on this page: html (4 pages) or pdf Clickbook booklet (1 double-sided page). (See printing instructions for an explanation of these options)

MileS#id?(Sign) Common NameLatin Name#here#all
0.00   Begin trail at back of Visitor Center, at west end of patio.
0.00l1 Sign: desert-willowChilopsis linearis ssp. arcuata3 / 37
0.00l2 desert tobaccoNicotiana obtusifolia4 / 24
0.00   Switchback right
0.00l  (sweetbush, Bebbia juncea var. aspera)
0.00l3 smoke treePsorothamnus spinosus3 / 36
0.00l4~desert baccharisBaccharis sergiloides5 / 26
0.00l  (cheesebush, Hymenoclea salsola var. salsola; desert lavender, Hyptis emoryi)
0.00l  Sign: "Ed Hastey Trail [ahead]"
0.00l5 Sign: California (desert) fan palmWashingtonia filifera2 / 26
0.00l6 *desert marigoldBaileya multiradiata var. multiradiata10 / 21
0.00l7 chuparosaJusticia californica20 / 98
0.01r8 Bigelow's desert four-o'clockMirabilis bigelovii var. bigelovii1 / 13
0.01l9 Sign: catclawAcacia greggii2 / 210
0.01l10 burroweedAmbrosia dumosa1 / 111
0.01r11 Sign: sacred datura (Jimson weed on sign)Datura wrightii (=D. meteloides)1 / 121
0.01r12 Sign: Mojave (old man) prickly-pearOpuntia erinacea var. erinacea3 / 23
0.01l13 brittlebushEncelia farinosa20 / 912
0.01l14 creosote bushLarrea tridentata3 / 39
0.01r15 jojobaSimmondsia chinensis5 / 57
0.01r16 beavertail cactusOpuntia basilaris var. basilaris4 / 314
0.01l  Sign: "old man prickly pear, Opuntia erinacea"
0.01r17 cheesebushHymenoclea salsola var. salsola20 / 99
0.01l18 Sign: desert lavenderHyptis emoryi10 / 98
0.01r  Sign: "jojoba, Simmondsia chinensis"
0.01l19~small-seeded spurgeChamaesyce polycarpa40 / 919
0.01r20 *triangle leaf bursageAmbrosia deltoidea1 / 11
0.01l  Sign: "desert fan palm, Washingtonia filifera"
0.01l21 sweetbushBebbia juncea var. aspera10 / 915
0.01r  (*Cleveland sage, Salvia clevelandii)
0.01r  Sign: "beavertail cactus, Opuntia basilaris"
0.02l  Sign: "creosote bush, Larrea tridentata"
0.02r  Sign: "jojoba, Simmondsia chinensis"
0.02l  Sign: "chuparosa, Justicia californica"
0.02l  Sign: "creosote bush, Larrea tridentata"
0.02r22 Sign: bladderpodIsomeris arborea1 / 110
0.03l23 Sign: indigo bushPsorothamnus schottii (=Dalea schottii)1 / 110
0.03l24 bearded cryptanthaCryptantha barbigera1 / 13
0.03r  (Sign: "cheesebush, Hymenoclea salsola")
0.03r25 desert needlePalafoxia arida var. arida20 / 94
0.03r26 Sign: Thurber's sandpaper-plantPetalonyx thurberi ssp. thurberi10 / 93
0.03r  Sign: "desert lavender, Hyptis emoryi"
0.04   Trail turns left 90°
0.04r  "Coyote" bench
0.04l  Sign: "desert lavender, Hyptis emoryi"
0.05l27 wire-lettuceStephanomeria pauciflora var. pauciflora1 / 112
0.05l  (Gander's cholla, Opuntia ganderi)
0.05   Trail turns right 90°
0.05b  Lots of small-seeded spurge, Chamaesyce polycarpa
0.06r28 pencil chollaOpuntia ramosissima2 / 25
0.06l  (world's largest, shrubbiest, oldest desert trumpet, Eriogonum inflatum)
0.06l  Sign: "chuparosa, Justicia californica"
0.06r  Sign: "sandpaper-plant, Petalonyx thurberi"
0.07r  Sign: "desert-willow, Chilopsis linearis"
0.07l  Sign: "beavertail cactus, Opuntia basilaris"
0.07r  (silver cholla, Opuntia echinocarpa)
0.08r29 desert trumpetEriogonum inflatum1 / 16
0.08   Switchback left
0.08l  Sign: "brittlebush, Encelia farinosa"
0.09r30 silver chollaOpuntia echinocarpa1 / 11
0.09r31 Sign: blue palo verdeCercidium floridum ssp. floridum3 / 33
0.10r  Sign: "smoke tree, Psorothamnus spinosus"
0.12r ~(*elm, Ulmus sp.)
0.12r32 Sign: honey mesquiteProsopis glandulosa var. torreyana1 / 17
0.13l  Jct. side trail; Sign: "Native grass garden ..."; go left on it
0.13b33 deergrassMuhlenbergia rigens10 / 126
0.13r34 Mexican rushJuncus mexicanus4 / 121
0.14   Sign ahead: "deergrass, Muhlenbergia rigens"
0.14   (ahead: desert mistletoe, Phoradendron californicum; desert star-vine, Brandegea bigelovii)
0.14r  Sign: "Mexican rush, Juncus mexicanus"
0.14   Turn around and rejoin main trail
0.15r  Sign: "sandpaper-plant, Petalonyx thurberi"
0.15l35 chiaSalvia columbariae5 / 126
0.15l36~desert prickly-pearOpuntia phaeacantha1 / 14
0.16l37 cane chollaOpuntia parryi2 / 11
0.16r  Sign: "blue palo verde, Cercidium floridum"
0.16l  (Engelmann's hedgehog cactus, Echinocereus engelmannii)
0.16r38 desert star-vineBrandegea bigelovii1 / 12
0.16r39spSign: Vasey's prickly-pearOpuntia vaseyi (=O. littoralis var. vaseyi)1 / 127
0.17r40 Sign: teddy-bear chollaOpuntia bigelovii1 / 17
0.17l41 Mohave yuccaYucca schidigera1 / 111
0.17l42 Sign: California barrel cactusFerocactus cylindraceus (=Ferocactus acanthodes)2 / 18
0.17l43 sugar bushRhus ovata1 / 129
0.18l44 screw-bean mesquiteProsopis pubescens1 / 11
0.18r  Sign: "chuparosa, Justicia californica"
0.18r  Sign: "smoke tree, Psorothamnus spinosus"
0.18l45 California trixisTrixis californica var. californica1 / 18
0.18l  (Sign: "catclaw acacia, Acacia greggii")
0.18r  Sign: "blue palo verde, Cercidium floridum"
0.19l  (white sage, Salvia apiana)
0.19l  (ocotillo, Fouquieria splendens ssp. splendens)
0.19l  Sign: "Ed Hastey Desert Garden Trail ..."
0.19   Trail turns left to Visitor Center entrance
0.19l sp(Sign: "penstemon, Penstemon sp.")
0.19l46 Coves's cassiaSenna covesii1 / 11
0.19l  (California buckwheat, Eriogonum fasciculatum)
0.19l  (*Cooper's paper-daisy, Psilostrophe cooperi)
0.19   End Desert Garden Trail. Just ahead, the last plant before entering the visitor center, is the yellow-flowered form of chuparosa, Justicia californica. To see the next species, turn around and head to the parking lot; it is on the sidewalk continuation just after you cross the circular driveway
0.20l47 ajameteAsclepias subulata1 / 11
    To see the next species, continue to the end of the parking lot; it is in the island there
    (apricot mallow, Sphaeralcea ambigua var. ambigua)
    The final species is on the east side of the Visitor's Center, east of the Cleveland sage
    (arrow-weed, Pluchea sericea)
    The following species were on the trail only during the weekend of 2/17/07:
0.19l  (*Salvia X trident: S. mojavensis X S. clevelandii X S. dorrii)
0.19l  *Lady in RedSalvia coccinea2 / 1 
0.19l  *Bush GermanderTeucrium fruticans 'azureum'1 / 1 

Comments On Specific Species


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Copyright © 2007 by Tom Chester.
Permission is freely granted to reproduce any or all of this page as long as credit is given to me at this source:
Comments and feedback: Tom Chester
Updated 22 February 2007.