Anza-Borrego: Plant Guide To Moonlight Canyon Trail,
Agua Caliente County Park

miles#idCommon NameLatin Name#here#all
0.00   Begin plant guide at edge of campground road pavement; elevation ~1350 feet (411 m)
0.00r1 catclawSenegalia greggii30 / 990
0.00b2 solitary-leaved alkali goldenbushIsocoma acradenia var. eremophila50 / 518
0.00e3 seaside heliotropeHeliotropium curassavicum var. oculatum1 / 114
0.00r  Post "139 & 140"
0.00r4 desert mistletoePhoradendron californicum50 / 979
0.00l  (Shuffleboard court)
0.00l5 honey mesquiteProsopis glandulosa var. torreyana40 / 949
0.00r  (Fremont box-thorn, Lycium fremontii)
0.01r  (picnic table; common reed, Phragmites australis; arrow-weed, Pluchea sericea; California fan palm, Washingtonia filifera; Mexican rush, Juncus mexicanus)
0.01r6 saltgrassDistichlis spicata99 / 935
0.01b7 cattle saltbushAtriplex polycarpa30 / 434
0.02   Sign: "Begin Moonlight Canyon Trail"
0.02r  (screw-bean mesquite, Prosopis pubescens)
0.02b8 Fremont box-thornLycium fremontii50 / 67
0.02l9 bush seepweedSuaeda nigra3 / 113
0.03b10 arrow-weedPluchea sericea99 / 920
0.03r  (Water tank)
0.04l11 Mexican rushJuncus mexicanus10 / 252
0.05l  Sign: "Danger chlorine"
0.05b12 arrow-leafPleurocoronis pluriseta30 / 948
0.05b13 desert hollyAtriplex hymenelytra10 / 324
0.05l14 wire-lettuceStephanomeria pauciflora30 / 989
0.05r  (spiny rush, Juncus acutus ssp. leopoldii)
0.05l  (California barrel cactus, Ferocactus cylindraceus)
0.05l  (Mormon tea, Ephedra aspera)
0.05l  (teddy-bear cholla, Cylindropuntia bigelovii^)
0.05l15 brittlebushEncelia farinosa99 / 992
0.06r  (narrowleaf willow, Salix exigua var. exigua^)
0.06r  (red willow, Salix laevigata)
0.06l16 Gander's chollaCylindropuntia ganderi40 / 971
0.06r17 spiny rushJuncus acutus ssp. leopoldii5 / 35
0.06l  (burroweed, Ambrosia dumosa)
0.07l18 white-stemmed milkweedAsclepias albicans5 / 510
0.07l  (Emory's indigo-bush, Psorothamnus emoryi)
0.07l19 burroweedAmbrosia dumosa50 / 989
0.07   Trail descends, curves right and switchbacks left to cross drainage
0.07l  A big Juncus acutus ssp. leopoldii
0.08   Cross drainage
0.09r20 desert trumpetEriogonum inflatum50 / 976
0.11r  (white rhatany, Krameria bicolor^; jojoba, Simmondsia chinensis; indigo bush, Psorothamnus schottii; western tansy-mustard, Descurainia pinnata)
0.11r21 desert lotusAcmispon rigidus5 / 335
0.12   Cross drainage again
0.12r22 rambling milkweedFunastrum hirtellum10 / 928
0.12r23 Mormon teaEphedra aspera20 / 921
0.12r24 Coulter's lyrepodLyrocarpa coulteri20 / 922
0.12r25 chuparosaJusticia californica50 / 941
0.12   Trail ascends steeply
0.12l  (desert agave, Agave deserti var. deserti^)
0.13l26 Engelmann's hedgehog cactusEchinocereus engelmannii2 / 251
0.13l27sspapricot mallowSphaeralcea ambigua20 / 910
0.13l28sppincushion flowerChaenactis sp.30 / 9
0.13l29 white rhatanyKrameria bicolor20 / 972
0.13r  Jct. trail to wash; stay left
0.13l30 whispering bellsEmmenanthe penduliflora var. penduliflora1 / 152
0.14r31 jojobaSimmondsia chinensis30 / 953
0.14r  (sweetbush, Bebbia juncea var. aspera)
0.14l32 linear-leaved stillingiaStillingia linearifolia2 / 229
0.16l33 indigo bushPsorothamnus schottii20 / 974
0.16l34 Guadalupe cryptanthaCryptantha maritima30 / 549
0.16   End steep climb
0.17l35 Bigelow's desert four-o'clockMirabilis laevis var. retrorsa10 / 269
0.17r36 Wright's buckwheatEriogonum wrightii var. nodosum10 / 940
0.17l  (woolly lipfern, Cheilanthes parryi; brittle spineflower, Chorizanthe brevicornu var. brevicornu; little-flowered heliotrope phacelia, Phacelia crenulata var. minutiflora; hairy-podded pepper-grass, Lepidium lasiocarpum ssp. lasiocarpum^)
0.17l sp(fish-hook cactus, Mammillaria dioica?)
0.17l  (California fagonia, Fagonia laevis)
0.18r37 creosote bushLarrea tridentata50 / 997
0.18l38 woolly lipfernCheilanthes parryi20 / 954
0.19r39 brittle spineflowerChorizanthe brevicornu var. brevicornu1 / 158
0.19r40 San Felipe dogweedAdenophyllum porophylloides10 / 958
0.19b41 Mojave ragwortSenecio mohavensis20 / 540
0.19l42 rock hibiscusHibiscus denudatus10 / 952
0.19l43 desert agaveAgave deserti var. deserti30 / 558
0.19r44 narrowleaf ditaxisDitaxis lanceolata5 / 563
0.20b45 hairy-podded pepper-grassLepidium lasiocarpum ssp. lasiocarpum99 / 970
0.21l46 ocotilloFouquieria splendens ssp. splendens99 / 984
0.21l  (Arizona chalk dudleya, Dudleya arizonica)
0.21l  (beavertail cactus, Opuntia basilaris var. basilaris)
0.22l47 little-flowered heliotrope phaceliaPhacelia crenulata var. minutiflora1 / 125
0.23r48 desert-lavenderHyptis emoryi20 / 979
0.25l49~star giliaGilia stellata1 / 129
0.25r50 yellow-headTrichoptilium incisum10 / 225
0.26l  (intermediate larkspur, Delphinium parishii ssp. subglobosum; California suncup, Eulobus californicus)
0.27r51 Pima rhatanyKrameria erecta1 / 139
0.25b52 desert plantainPlantago ovata99 / 963
0.28r53 intermediate larkspurDelphinium parishii ssp. subglobosum20 / 431
0.28r54 California barrel cactusFerocactus cylindraceus50 / 9
0.29l55 big galletaHilaria rigida5 / 373
0.29l  (small-seeded spurge, Chamaesyce polycarpa)
0.30r56 California fagoniaFagonia laevis20 / 939
0.32l57 desert spike-mossSelaginella eremophila10 / 931
0.34r58 sweetbushBebbia juncea var. aspera30 / 992
0.34r  (California trixis, Trixis californica var. californica)
0.34   Switchback left
0.34r  (star-flowered bedstraw, Galium stellatum^)
0.35l59spannual phaceliaPhacelia sp.10 / 3
0.36r  Trail turns right; jct. shortcut trail (do not take!); stay left
0.37   Switchback right
0.39l60 star-flowered bedstrawGalium stellatum5 / 239
0.44b61 teddy-bear chollaCylindropuntia bigelovii99 / 955
0.44r62 California trixisTrixis californica var. californica5 / 554
0.45l63 beavertail cactusOpuntia basilaris var. basilaris3 / 383
0.48l64 California suncupEulobus californicus50 / 395
0.48   Saddle; highest point on trail, elevation ~1650 feet (503 m)
0.55l65spann upright lotusLotus sp.10 / 1
0.58r66?Thomas' buckwheatEriogonum thomasii2 / 249
 r  Wash in (fxx)
 r  (Parish's viguiera, Bahiopsis parishii)
 l67 bracted blazing starMentzelia involucrata1 / 140
 r68 *red bromeBromus madritensis ssp. rubens1 / 1123
 r  (wedge-leaved draba, Draba cuneifolia)
0.61l69?unk low shrub with capsule fruit?1 / 1
0.62l70 Newberry's velvet mallowHorsfordia newberryi5 / 322
0.65   Join wash from side canyon to Moonlight Canyon
 b71 *Mediterranean schismusSchismus barbatus2 / 194
0.67r72 Parish's viguieraBahiopsis parishii10 / 357
0.67r  (fluff grass, Dasyochloa pulchella^)
 r73 California buckwheatEriogonum fasciculatum var. polifolium2 / 284
0.68l  (spearleaf, Matelea parvifolia)
0.68l74 small-seeded spurgeChamaesyce polycarpa30 / 989
0.70l75sspCalifornia cloak fernNotholaena californica1 / 121
0.71r76 boundary goldenbushEricameria brachylepis1 / 128
0.71   Join Moonlight Canyon wash; the following two species are found up canyon
  77 desert apricotPrunus fremontii5 / 130
  78 six-weeks three-awnAristida adscensionis1 / 140
0.71l79 *rabbits-foot grassPolypogon monspeliensis1 / 1
0.72l80 common phaceliaPhacelia distans1 / 176
0.75l81 purple three-awnAristida purpurea10 / 335
0.80r  (fish-hook cactus, Mammillaria tetrancistra)
0.84r82~desert woolly-starEriastrum eremicum ssp. eremicum10 / 244
1.01r83 thick-leaved ground cherryPhysalis crassifolia1 / 153
1.04   Enter spring area
1.04r84 mountain California-fuchsiaEpilobium canum ssp. latifolium20 / 293
1.06l85 *athelTamarix aphylla5 / 25
1.06l86 black willowSalix gooddingii30 / 116
1.07b87 common reedPhragmites australis50 / 28
1.07b88~southern cattailTypha domingensis10 / 218
1.08r  (stream orchid, Epipactis gigantea)
1.09r89 slender-lobed four o'clockMirabilis tenuiloba5 / 112
1.09l90 screw-bean mesquiteProsopis pubescens5 / 35
1.10l91 ghost flowerMohavea confertiflora1 / 123
1.10l92 *Bermuda grassCynodon dactylon2 / 146
1.11r  (desert baccharis, Baccharis sergiloides)
1.11b93 narrowleaf willowSalix exigua var. exigua1 / 114
1.12r  (southwestern bushy bluestem, Andropogon glomeratus var. scabriglumis; deergrass, Muhlenbergia rigens; Emory's rock-daisy, Perityle emoryi)
1.13r  (Asian mustard, Brassica tournefortii)
1.17l94 Bigelow's monkeyflowerMimulus bigelovii var. bigelovii10 / 126
1.24   Trail turns left
1.25r95 smoke treePsorothamnus spinosus20 / 343
1.25l96 cheesebushAmbrosia salsola var. salsola40 / 379
1.28   Trail turns right 90°
1.36   Trail turns left 90° to return to campground; lowest elevation on trail, ~1310 feet (399 m)
1.39l97 pencil chollaCylindropuntia ramosissima20 / 226
1.49l98 desert teaEphedra californica / 25
1.51b99spdodderCuscuta sp.2 / 1
1.60   End trail and plant guide at different part of campground
1.78   Day use parking
 
    Species planted in Campground
    *golden wattleAcacia pycnantha / 0
    *Mexican palo verdeParkinsonia aculeata / 2
    blue palo verdeParkinsonia florida / 16
 
    Other species seen in Moonlight Canyon, but not located
    California mustardCaulanthus lasiophyllus / 21
    Nevada cryptanthaCryptantha nevadensis var. nevadensis / 5
    small-flowered poppyEschscholzia minutiflora ssp. minutiflora / 46
    Parish's poppyEschscholzia parishii / 40
    beetle spurgeEuphorbia eriantha / 20
    Arizona lupineLupinus arizonicus / 48
    California loosestrifeLythrum californicum / 10
    white-stemmed blazing starMentzelia albicaulis / 16
    Arizona pholistomaPholistoma auritum var. arizonicum / 1
 
    Species found in the area just outside the campground
    Parish's spikerushEleocharis parishii / 4
    catchfly prairie-gentianEustoma exaltatum ssp. exaltatum / 2
    American tuleSchoenoplectus americanus / 12
 
    Species found from mouth of Moonlight Canyon to Airstrip:
    desert-willowChilopsis linearis ssp. arcuata / 35
    brown-eyed primroseChylismia claviformis ssp. peirsonii / 54
    California crotonCroton californicus / 28
    narrow-leaved cryptanthaCryptantha angustifolia / 53
    desert dicoriaDicoria canescens / 15
    Booth's evening primroseEremothera boothii ssp. condensata / 49
    blackbanded rabbitbrushEricameria paniculata / 14
    toad rushJuncus bufonius / 2
    *tree tobaccoNicotiana glauca / 26
    desert tobaccoNicotiana obtusifolia / 55
    dune primroseOenothera deltoides ssp. deltoides / 12
    ironwoodOlneya tesota / 15
    desert needlePalafoxia arida var. arida / 47
    Thurber's sandpaper-plantPetalonyx thurberi ssp. thurberi / 36
    *rabbits-foot grassPolypogon monspeliensis / 46
    odoraPorophyllum gracile / 25
    turtlebackPsathyrotes ramosissima / 12
    Emory's indigo-bushPsorothamnus emoryi / 34
    chiaSalvia columbariae / 90
    plicate coldeniaTiquilia plicata / 17
http://tchester.org/sd/plants/guides/anza_borrego/moonlight_canyon.html
Last update: 1 March 2012.