Flora of the Western Old Kane Spring Road Area, Anza-Borrego Desert State Park
Fig. 1. View to the northwest showing the Old Kane Spring Road area on 20 February 2018, by Tom Chester. Click on the photograph for a larger version.
This is a start at the flora of the Old Kane Spring Road Area; see Figs. 1 and 2. This area is not tightly defined, since most of it has not been surveyed for plant species yet. From Fig. 2, which shows where species have been recorded, the checklist is most representative of the west end of Old Kane Spring Road, a portion of the area to the south, and the area along SR78 between its junction with Old Kane Spring Road to its junction with Borrego Springs Road. This flora does not include species in the San Felipe Wash.
Fig. 2. Map showing the western part of the Old Kane Spring Road area, along with locations where species have been recorded in our observations, vouchers, and iNaturalist observations. The areas of San Felipe Wash, The Narrows, Harper Canyon and Borrego Mountain are outside of this floral area. Click on the map for a version showing a larger area, without labels.
There are separate floras for The Narrows area on the west; Borrego Mountain on the north; and Harper Canyon to the south.
This area is dominated by an old alluvial plain which is being dissected; see Fig. 1. The ridges and canyons in the area we surveyed appear to be in similar rocks, but are probably of the Canebrake Conglomerate, a much older alluvial deposit. The photograph in Fig. 1 was taken from one of those ridges, which is in the foreground at bottom in the photograph.
This habitat excludes species that like to grow on granitic or metamorphic rock, or on slopes made from those exposures. Very little of the habitat here is of sand, so species that like to grow in sandy areas are sparse here.
The flora has been compiled from the following sources:
- One Field Trip on 20 February 2018, in a very dry year where no annuals had germinated here, by Tom Chester, Nancy Accola, Walt Fidler, and Don Rideout. We found 62 species, of which 61 were noted in the checklist below. The other species was one or more widespread and abundant Chaenactis species that could not be identified from its dead remnants from last year.
- Vouchers. Georeferenced vouchers were searched on 21 February 2018 for the area defined by 33.12 to 33.16° N. latitude and -116.27 to -116.22° E. longitude. The localities were reviewed, and vouchers with location in the San Felipe Wash or Harper Canyon, or with ambiguous localities such as "E of Narrows" were tossed.
One voucher from 1935 has a locality that sounds like it should be in this area, of Kane Spring Road beyond Narrows, but it is of Xylorhiza orcuttii which is very unlikely to grow in at least this western part of Kane Spring Road. It even seems unlikely that it grows in the eastern part of Kane Spring Road since Fred Melgert and Carla Hoegen's in-depth surveys for this species show the closest known plants are on the northwest side of the West Butte of Borrego Mountain and near Split Mountain. It is possible that the collector took what is now called Split Mountain Road from that part of Kane Spring Road and went to the Split Mountain location, and gave just the vague locality on the voucher. So we tossed this voucher as well.
The above procedure left 119 vouchers from this area. Table 1 lists the dominant collectors.
Table 1. Top Voucher Collectors in This Area
# Vouchers Collectors 41 C. L. Hitchcock 21 Larry Hendrickson, Bonnie Bruce 17 Bill Sullivan 11 Arthur Morley, Jean Morley 10 Joe Barth
One species vouchered from 1962, Lepidium densiflorum, with duplicate vouchers at CAS and RSA, from State Highway 78, 0.7 mile west of the east entrance to Anza-Borrego State Park, is quite unexpected here. The determination was made by the Jepson Manual Second Edition author, Ihsan A. Al-Shehbaz, in 2010 for the CAS duplicate, yet he gives only SCo, DMoj in southern California for this species. It seems highly likely that if this location is correct, this is a waif, possibly from traffic to Ocotillo Wells from the coast, since no one else has ever seen this species in our desert.
- iNaturalist was searched on 21 February 2018 for taxa not found in the field trip or in vouchers. Three additional taxa were found.
- Calflora was searched on 21 February 2018 for this area, but there was only a single observation georeferenced here, which turned out to be both misdetermined and misgeoreferenced; see the comments on this record.
The resulting checklist contained a total of 94 taxa.
Since this checklist is almost surely quite incomplete for annuals and some perennials, we went through the checklists for The Narrows area and Harper Canyon, and the vouchers which were just outside this area, and included 45 species we thought could potentially be found here. Those species are noted in the checklist by having no entries in the last two columns.
Checklist for Old Kane Spring Road Area
- Notes on the Scientific Names Used At This Site and
- Information about the links from the Scientific Name and Common Name.
The column with header Fam is the first three letter of the Jepson Manual Second Edition family. See Plant Family Abbreviations for most of them.
An asterisk before the common name indicates a non-native species.
The column labeled #V gives the number of vouchers from this area.
The column labeled #Pls gives a minimum estimate of the number of plants from our single survey in a dry year. An entry of iNat in this column indicates a species from iNaturalist whose determination was reviewed by us.
Taxa with no entry in the last two columns are species that potentially could be here, but so far have not been observed here.
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# Fam Scientific Name
Link goes to the Jepson eflora
Link goes to Calphotos
#V #Pls Lycophytes 1 Sel Selaginella eremophila desert spike-moss Ferns 2 Pte Cheilanthes parryi woolly lipfern Gymnosperms 3 Eph Ephedra aspera Mormon tea 5 4 Eph Ephedra californica desert tea 1 Eudicots 5 Aca Justicia californica chuparosa 60 6 Ama Amaranthus fimbriatus fringed amaranth 7 Ama Tidestromia suffruticosa var. oblongifolia Arizona honeysweet iNat 8 Ast Adenophyllum porophylloides San Felipe dogweed 1 9 Ast Ambrosia dumosa burroweed 5 99 10 Ast Ambrosia salsola var. salsola cheesebush 4 99 11 Ast Bahiopsis parishii Parish's goldeneye 12 Ast Bebbia juncea var. aspera sweetbush 1 13 Ast Calycoseris wrightii white tackstem 2 14 Ast Chaenactis carphoclinia var. carphoclinia pebble pincushion 1 15 Ast Chaenactis fremontii Fremont pincushion 16 Ast Chaenactis stevioides desert pincushion 4 17 Ast Encelia farinosa brittlebush 1 99 18 Ast Encelia frutescens button encelia 6 19 Ast Logfia depressa dwarf filago 20 Ast Logfia filaginoides California filago 21 Ast Malacothrix glabrata desert dandelion 1 22 Ast Monoptilon bellioides desert star 2 23 Ast Palafoxia arida var. arida Spanish needle 4 1 24 Ast Pectis papposa var. papposa chinch-weed 25 Ast Perityle emoryi Emory's rock-daisy 26 Ast Pleurocoronis pluriseta arrow-leaf 1 27 Ast Psathyrotes ramosissima turtleback 1 28 Ast Rafinesquia neomexicana desert chicory 1 29 Ast Stephanomeria exigua ssp. exigua slender wreathplant 2 40 30 Ast Stephanomeria pauciflora wire-lettuce 2 1 31 Ast Trichoptilium incisum yellow-head 1 32 Ast Trixis californica var. californica California trixis 1 2 33 Bor Cryptantha angustifolia narrow-leaved cryptantha 3 99 34 Bor Cryptantha barbigera var. barbigera bearded cryptantha 1 35 Bor Cryptantha maritima Guadalupe cryptantha 1 99 36 Bor Cryptantha micrantha var. micrantha red-root cryptantha 99 37 Bor Emmenanthe penduliflora var. penduliflora whispering bells 1 38 Bor Pectocarya heterocarpa chuckwalla pectocarya 39 Bor Pectocarya peninsularis Baja pectocarya 40 Bor Pectocarya platycarpa broad-fruited combseed 41 Bor Pectocarya recurvata curvenut combseed 1 42 Bor Phacelia crenulata var. minutiflora little-flowered heliotrope phacelia 1 99 43 Bor Phacelia distans common phacelia 5 44 Bor Pholisma arenarium sand plant 45 Bor Tiquilia canescens var. canescens gray coldenia iNat 46 Bra Brassica tournefortii *Sahara mustard 35 47 Bra Descurainia pinnata western tansy-mustard 2 48 Bra Draba cuneifolia wedge-leaved draba 1 49 Bra Lepidium densiflorum common pepper-grass 2 50 Bra Lepidium lasiocarpum ssp. lasiocarpum hairy-podded pepper-grass 99 51 Bra Lyrocarpa coulteri Coulter's lyrepod 1 1 52 Bra Sisymbrium irio *London rocket 53 Cac Cylindropuntia bigelovii teddy-bear cholla 1 99 54 Cac Cylindropuntia echinocarpa silver cholla 1 99 55 Cac Cylindropuntia ganderi Gander's cholla 1 99 56 Cac Cylindropuntia ramosissima pencil cholla 1 99 57 Cac Ferocactus cylindraceus California barrel cactus 2 99 58 Cac Mammillaria dioica California fish-hook cactus iNat 59 Cac Mammillaria tetrancistra desert fish-hook cactus 3 8 60 Cac Opuntia basilaris var. basilaris beavertail cactus 2 99 61 Cam Nemacladus glanduliferus glandular nemacladus 62 Cam Nemacladus sp. 15 63 Che Chenopodium murale *nettle-leaved goosefoot 64 Con Cuscuta californica var. papillosa papillate dodder 4 60 65 Eup Chamaesyce micromera Sonoran spurge 66 Eup Chamaesyce polycarpa small-seeded spurge 2 50 67 Eup Chamaesyce setiloba starfish (Yuma) spurge 68 Eup Croton californicus California croton 2 69 Eup Ditaxis lanceolata narrowleaf ditaxis 50 70 Eup Ditaxis neomexicana New Mexico ditaxis 1 71 Eup Euphorbia eriantha beetle spurge 72 Fab Acmispon maritimus var. brevivexillus short-bannered coastal lotus 73 Fab Acmispon rigidus desert lotus 74 Fab Acmispon strigosus strigose lotus 75 Fab Astragalus palmeri Palmer's milk-vetch 1 76 Fab Dalea mollis silky dalea 1 77 Fab Dalea mollissima downy dalea 1 78 Fab Lupinus arizonicus Arizona lupine 79 Fab Lupinus concinnus bajada lupine 80 Fab Marina parryi Parry's marina 1 81 Fab Olneya tesota ironwood 85 82 Fab Psorothamnus emoryi Emory's indigo-bush 2 83 Fab Psorothamnus schottii indigo bush 1 99 84 Fab Psorothamnus spinosus smoke tree 85 Fab Senegalia greggii catclaw 50 86 Fou Fouquieria splendens ssp. splendens ocotillo 4 99 87 Ger Erodium cicutarium *redstem filaree 88 Ger Erodium texanum Texas filaree 1 89 Kra Krameria bicolor white rhatany 99 90 Kra Krameria erecta Pima rhatany 1 5 91 Lam Hyptis emoryi desert-lavender 50 92 Lam Salvia columbariae chia 75 93 Loa Mentzelia affinis yellow blazing star 94 Loa Mentzelia involucrata bracted blazing star 95 Mal Eremalche rotundifolia desert five-spot 2 96 Mal Hibiscus denudatus rock hibiscus 15 97 Mol Mollugo cerviana *carpet-weed 98 Nyc Abronia villosa var. villosa hairy sand-verbena 99 Nyc Allionia incarnata var. incarnata small-flowered trailing four o'clock 100 Nyc Boerhavia triquetra var. intermedia fivewing spiderling 101 Nyc Mirabilis laevis var. retrorsa Bigelow's desert four-o'clock 1 102 Ona Chylismia claviformis ssp. peirsonii brown-eyed primrose 3 99 103 Ona Eremothera boothii ssp. condensata Booth's evening primrose 99 104 Ona Eremothera refracta narrow-leaf suncup 1 105 Ona Eulobus californicus California suncup 2 20 106 Oro Orobanche cooperi Cooper's broomrape 107 Pap Eschscholzia minutiflora ssp. minutiflora small-flowered poppy 4 108 Pap Eschscholzia parishii Parish's poppy 109 Phr Mimulus bigelovii var. bigelovii Bigelow's monkeyflower 99 110 Pla Mohavea confertiflora ghost flower 1 111 Pla Plantago ovata desert plantain 3 99 112 Pol Aliciella latifolia ssp. latifolia broad-leaf gilia 113 Pol Eriastrum eremicum ssp. eremicum desert woolly-star 114 Pol Gilia stellata star gilia 1 115 Pol Langloisia setosissima ssp. setosissima bristly langloisia 116 Pol Loeseliastrum sp. 35 117 Pol Chorizanthe brevicornu var. brevicornu brittle spineflower 3 10 118 Pol Chorizanthe corrugata wrinkled spineflower 5 119 Pol Chorizanthe rigida devil's spineflower 99 120 Pol Eriogonum inflatum desert trumpet 2 5 121 Pol Eriogonum thomasii Thomas' buckwheat 2 99 122 Res Oligomeris linifolia lineleaf whitepuff 1 40 123 Rub Galium stellatum star-flowered bedstraw 124 Sim Simmondsia chinensis jojoba 2 50 125 Sol Datura discolor desert thornapple 126 Sol Physalis crassifolia thick-leaved ground cherry 1 127 Vis Phoradendron californicum desert mistletoe 10 128 Zyg Fagonia laevis California fagonia 1 1 129 Zyg Larrea tridentata creosote bush 1 99 Monocots 130 Aga Agave deserti var. deserti desert agave 99 131 Aga Hesperocallis undulata desert lily 3 132 Poa Aristida adscensionis six-weeks three-awn 1 133 Poa Aristida purpurea purple three-awn 134 Poa Bouteloua aristidoides var. aristidoides needle grama 135 Poa Bouteloua barbata var. barbata six-weeks grama 136 Poa Dasyochloa pulchella fluff grass 137 Poa Hilaria rigida big galleta 1 60 138 Poa Schismus arabicus *Mediterranean grass 139 Poa Schismus barbatus *Mediterranean schismus 99
Voucher data provided by the participants of the Consortium of California Herbaria (ucjeps.berkeley.edu/consortium/)
Copyright © 2018 by Tom Chester, Nancy Accola, Walt Fidler, and Don Rideout.
Permission is freely granted to reproduce any or all of this page as long as credit is given to us at this source:
Comments and feedback: Tom Chester
Last update: 23 February 2018