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 very different from the other plant trail guides, in that there is not an actual trail to follow here. Instead, we give directions on a general route to follow, which should enable the reader to approximate our route, and therefore see most of the species in the list. If you wish to follow the route exactly, GPS locations of points along the route are given.
Highlights of This Trail 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 89 trails in our database when this histogram was made; 5 of those trails, including this one, are in Anza-Borrego State Park. A number of "1" means the taxon has only been found only on this list, among all the trails in our database; numbers of "5" or smaller may indicate taxa found only in this area. Three of the other Anza-Borrego Trails are very incomplete; only the Borrego Palm Canyon Trail is as complete as this trail.
Number of Trails
Containing A TaxonNumber Of Taxa
On This Trail% of Taxa
On This Trail1 40 37% 2 24 22% 3 13 12% 4 5 5% 5 3 3% 1-5 85 78% 6-10 10 9% 11-15 3 3% 16-20 5 5% 21-25 3 3% 26-30 1 1% 31-35 0 0% 36-40 0 0% 41-45 0 0% 46-50 2 2% Total Taxa 109 100% We found 3 additional taxa 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 Date Visit # # taxa # "?" # "sp" # "~" # "ssp" 3/22/2003 1 2/29/2004 2 78 1 5 5 4 3/5/2004 3 94 1 2 6 1 2/13/2005 4 108 1 4 4 1 2/20/2005 5 112 1 2 2 1 The 3/22/03 field work was an incomplete list of some of the taxa identified on a fast-paced walk.
Botanical Trip Reports 29 February 2004
13 February 2005
20 February 2005
The Plant Guide Version for printing, without lines and other text on this page (5 pages)
No trail side is given for any species, due to the lack of a well-defined trail. Instead, that column has been replaced by one giving GPS points for some entries, titled G to save space in the table.
The GPS Points (NAD27) are given in the following table. The points have leading zeros in this table, since otherwise some GPS receivers (for example, a Garmin Etrex) will put #1 after #0xx. In the field guide itself, we dispense with the leading zeros.
Name Lat Lon 001 33.32498 -116.36687 002 33.32660 -116.36609 003 33.32689 -116.36511 004 33.32723 -116.36497 005 33.32738 -116.36430 006 33.32780 -116.36356 007 33.32798 -116.36329 008 33.32854 -116.36204 009 33.32857 -116.36168 010 33.32893 -116.36131 011 33.33001 -116.36020 012 33.33058 -116.35963 013 33.33138 -116.35930 014 33.33237 -116.35849 015 33.33337 -116.35827 016 33.33379 -116.35767 017 33.33546 -116.35617 018 33.33609 -116.35504 020 33.33648 -116.35482 021 33.33688 -116.35478 022 33.33705 -116.35501 023 33.33779 -116.35516 024 33.33769 -116.35391 025 33.33792 -116.35489 026 33.33848 -116.35488 027 33.33764 -116.35534 028 33.33772 -116.35562 029 33.33471 -116.35863 030 33.33390 -116.36030 031 33.32846 -116.36399 033 33.32869 -116.36163 034 33.32992 -116.36039 035 33.33018 -116.35976 036 33.33224 -116.35867 037 33.33356 -116.35798 038 33.33353 -116.35788 040 33.33353 -116.35794 041 33.33591 -116.35485 042 33.33579 -116.35449 043 33.33495 -116.35364 045 33.33286 -116.34664 046 33.33292 -116.34661 048 33.33211 -116.34808 050 33.33629 -116.35755
mile G # id Common Name Latin Name #here #all 0.00 1 Begin guide immediately east of the paved road, just south of the end of the pavement, except for the first species below, which is on the citrus trees on the west side of the road; elevation 758 feet (231 m) The species are in no particular order in the first 0.01 mile. 0.00 1 climbing milkweed Sarcostemma cynanchoides ssp. hartwegii 1 / 1 3 0.00 2 desert dicoria Dicoria canescens 99 / 9 1 0.00 3 *Asian mustard Brassica tournefortii 99 / 9 3 0.00 4 brown-eyed primrose Camissonia claviformis ssp. peirsonii 99 / 9 3 0.00 5 *southern sandbur Cenchrus echinatus+ 1 / 1 1 0.00 6 *Mediterranean schismus Schismus barbatus 99 / 9 16 0.00 7 hairy sand-verbena Abronia villosa var. villosa 99 / 9 1 0.00 8 Arizona lupine Lupinus arizonicus 99 / 9 1 0.00 9 narrow-leaved cryptantha Cryptantha angustifolia 99 / 9 2 0.00 10 desert lily Hesperocallis undulata 99 / 9 1 0.00 11 ssp dune primrose Oenothera deltoides ssp. deltoides+ 99 / 9 1 0.00 12 gray desert sunflower Helianthus niveus ssp. canescens 20 / 9 1 0.00 13 hairy desert-sunflower Geraea canescens 30 / 9 1 0.00 14 creosote bush Larrea tridentata 30 / 9 3 0.00 15 burroweed Ambrosia dumosa 30 / 4 5 0.00 16 *puncture-vine Tribulus terrestris 50 / 9 2 0.00 17 plicate coldenia Tiquilia plicata 99 / 9 1 0.00 18 Colorado Desert marigold Baileya pauciradiata 30 / 5 1 0.00 19 desert needle Palafoxia arida var. arida 99 / 9 1 0.00 20 spectacle-pod Dithyrea californica 99 / 9 1 0.00 21 desert thornapple Datura discolor 40 / 9 2 0.00 22 *redstem filaree Erodium cicutarium 10 / 3 50 0.00 23 Emory's indigo-bush Psorothamnus emoryi 99 / 9 1 0.00 24 California suncup Camissonia californica 99 / 9 18 0.00 25 frost mat Achyronychia cooperi 20 / 5 3 0.00 26 desert dandelion Malacothrix glabrata 20 / 9 3 0.00 27 *tumble pigweed Amaranthus albus 5 / 2 5 0.00 28 silky dalea Dalea mollis 20 / 9 1 0.00 Head north along a dirt road leading to the fenced Earthquake Observatory, just outside the boundary of the signed Private Property. 0.12 2 Earthquake Observatory; turn right ~45° and head toward Coyote Mountain, the highest peak in the immediate hills. 0.14 29 *red brome Bromus madritensis ssp. rubens 2 / 2 49 0.15 30 Sonoran spurge Chamaesyce micromera 30 / 9 2 0.15 31 indigo bush Psorothamnus schottii 20 / 9 4 0.16 32 Borrego milk-vetch Astragalus lentiginosus var. borreganus 99 / 9 2 0.16 33 chuckwalla pectocarya Pectocarya heterocarpa 30 / 9 1 0.18 3 34 yellow blazing star Mentzelia affinis 1 / 1 1 0.20 4 35 four-wing saltbush Atriplex canescens ssp. canescens 5 / 3 2 0.24 5 36 desert pincushion Chaenactis stevioides 10 / 4 1 0.24 37 *Russian thistle Salsola tragus 10 / 5 25 0.24 38 longbeak streptanthella Streptanthella longirostris 20 / 9 1 0.26 39 bajada lupine Lupinus concinnus 20 / 9 7 0.27 40 ribbed cryptantha Cryptantha costata 20 / 5 1 0.27 Dead cholla, probably gander's cholla, Opuntia ganderi 0.29 6 41 cattle saltbush Atriplex polycarpa 1 / 1 2 0.31 7 42 desert plantain Plantago ovata 20 / 4 2 0.32 Next species is slightly "off-route" to the left. 0.32 43 *athel Tamarix aphylla 5 / 5 1 0.33 44 Schott's calico Loeseliastrum schottii 3 / 3 2 0.33 45 *foxtail barley Hordeum murinum ssp. glaucum 5 / 1 10 0.33 Field of datura in 2003 0.33 46 sand cress Calyptridium monandrum 10 / 2 11 0.34 Exposed very long roots of hairy sand-verbena in 2003 0.39 8 47 ? prickly poppy? Argemone munita? 1 / 1 0.41 9 Check for different species: possibly Gilia sp., chia, Chaenactis sp. and Camissonia sp. 0.41 48 common phacelia Phacelia distans 5 / 1 7 0.41 49 hairy-podded pepper-grass Lepidium lasiocarpum var. lasiocarpum 20 / 4 2 0.41 50 pygmy-weed Crassula connata 10 / 1 17 0.41 51 small-flowered poppy Eschscholzia minutiflora ssp. minutiflora 10 / 3 3 0.41 52 California croton Croton californicus 20 / 2 6 0.45 10 Cross Coyote Wash 0.46 Small field of burroweed, Ambrosia dumosa 0.47 Sand "dunes" now a bit higher, up to 2 feet. 0.53 53 chick lupine Lupinus microcarpus var. microcarpus 3 / 3 7 0.55 11 Check id of baby plant in 2003 like Chaenactis artemisiifolia 0.59 54 annual stillingia Stillingia spinulosa 3 / 3 1 0.60 12 55 Thurber's sandpaper-plant Petalonyx thurberi ssp. thurberi 5 / 2 1 0.66 13 56 ocotillo Fouquieria splendens ssp. splendens 1 / 1 4 0.70 Now head for drainage immediately left of Coyote Mountain, to avoid crossing grove to right. 0.72 57 sp per mallow Sphaeralcea sp. 2 / 2 0.74 14 58 Parish's poppy Eschscholzia parishii 10 / 4 2 0.74 59 sp clover Melilotus sp.? 5 / 1 0.74 60 whispering bells Emmenanthe penduliflora var. penduliflora 30 / 2 9 0.74 61 threadstem Pterostegia drymarioides 1 / 1 24 0.74 62 wild canterbury bells Phacelia minor 5 / 1 16 0.74 63 *Bermuda grass Cynodon dactylon 5 / 1 27 0.74 64 narrowleaf willow Salix exigua 2 / 1 6 0.74 65 sacred datura Datura wrightii 1 / 1 15 0.74 Cross berm protecting grove from next wash. 0.75 In wash; elevation 750 feet (230 m) 0.80 66 trailing four o'clock Allionia incarnata 20 / 5 2 0.81 15 67 Mojave ragwort Senecio mohavensis 5 / 1 2 0.83 40 Check for honking Chaenactis 0.85 16 68 *cheeseweed Malva parviflora 20 / 1 19 0.85 69 Fremont pincushion Chaenactis fremontii 5 / 2 3 0.86 70 white-stemmed blazing star Mentzelia albicaulis 5 / 3 2 1.00 17 71 desert chicory Rafinesquia neomexicana 20 / 9 3 1.08 72 cheesebush Hymenoclea salsola var. salsola 10 / 3 3 1.08 18 73 smoke tree Psorothamnus spinosus 3 / 2 2 1.09 The next two species are "off-route" 18 paces down the wash and 5 paces left 1.09 19 74 Cooper's broom-rape Orobanche cooperi 1 / 1 1 1.09 75 big galleta Pleuraphis rigida 1 / 1 4 1.12 Leave wash and contour / climb drainage alluvial fan, up and to the left. 1.13 20 76 brittle spineflower Chorizanthe brevicornu var. brevicornu 20 / 3 2 1.13 77 six-weeks three-awn Aristida adscensionis 20 / 3 4 1.13 78 California fagonia Fagonia laevis 20 / 3 2 1.14 79 Booth's desert primrose Camissonia boothii ssp. condensata 5 / 1 1 1.14 80 kidney-leaf buckwheat Eriogonum reniforme 2 / 1 2 1.14 81 pebble pincushion Chaenactis carphoclinia var. carphoclinia 10 / 2 2 1.15 82 downy dalea Dalea mollissima 5 / 2 1 1.15 83 needle grama Bouteloua aristidoides var. aristidoides 10 / 2 3 1.15 84 little-flowered heliotrope phacelia Phacelia crenulata var. minutiflora 20 / 2 1 1.15 21 85 brittlebush Encelia farinosa 1 / 1 5 1.15 86 thick-leaved ground cherry Physalis crassifolia 3 / 1 2 1.15 87 Emory's rock-daisy Perityle emoryi 10 / 3 2 1.15 88 desert five-spot Eremalche rotundifolia 1 / 1 1 1.16 89 small-seeded spurge Chamaesyce polycarpa 5 / 1 12 1.16 90 devil's spineflower Chorizanthe rigida 5 / 1 1 1.17 22 Head more uphill now, toward GPS 23 1.22 23 91 ghost flower Mohavea confertiflora 1 / 1 1 1.22 23 Jct small drainage; head up the drainage 1.30 24 92 sweetbush Bebbia juncea var. aspera 1 / 1 7 1.30 24 93 desert lavender Hyptis emoryi 2 / 2 3 1.30 24 94 narrowleaf ditaxis Ditaxis lanceolata 1 / 1 2 1.30 24 Turn-around; go down to intersection with next drainage on west at the location of the next species, and take that next drainage uphill 1.35 25 95 long-fruit suncup Camissonia chamaenerioides / 1 1.39 26 Turn-around; go down the small drainage and head toward trailhead (return route is ~0.1 miles displaced to NW from previous route) 96 star gilia Gilia stellata / 1 2 97 little desert buckwheat Eriogonum trichopes var. trichopes / 1 1 1.46 98 ~ bracted blazing star Mentzelia involucrata 2 / 2 1 1.46 99 short-bannered coastal lotus Lotus salsuginosus var. brevivexillus 5 / 1 1 1.46 100 desert strigose lotus Lotus strigosus [var. tomentellus] 5 / 1 25 1.46 101 glandular nemacladus Nemacladus glanduliferus var. glanduliferus 1 / 1 1 1.46 102 Mojave desert star Monoptilon bellioides 1 / 1 1 1.46 27 103 beetle spurge Euphorbia eriantha 1 / 1 2 1.47 28 104 ~ gander's cholla Opuntia ganderi 1 / 1 3 1.63 105 beavertail cactus Opuntia basilaris var. basilaris 1 / 1 6 1.66 106 button encelia Encelia frutescens 1 / 1 1 1.74 Psorothamnus emoryi with a different stem; check for Pilostyles. 1.74 29 107 *London rocket Sisymbrium irio 1 / 1 9 1.86 30 108 teddy-bear cholla Opuntia bigelovii 2 / 1 1 2.29 31 109 white mallow Eremalche exilis 1 / 1 1 2.58 1 Back at trailhead. The following species were found in March 2002, but have not yet been located precisely: 110 dwarf white milk-vetch Astragalus didymocarpus var. dispermus / 1 111 Gander's cryptantha Cryptantha ganderi / 1 112 pale sun-cup Camissonia pallida ssp. pallida / 4
Comments On Specific Species Cenchrus echinatus. This noxious weed was eliminated, so we hope you don't see it!
Oenothera deltoides ssp. deltoides. Tom measured a large number of fruit to determine the subspecies, but every one had a width of 3.0 mm, dead between the two subspecies. The hairs on one specimen were spreading, 2.0-2.5 mm, which would make the subspecies cognata. Unfortunately, ssp. cognata is supposed to be only in the DMoj! Beauchamp and Simpson and Rebman both give only ssp. deltoides in the San Diego County, and the type for o.d.d. is at Borrego Springs.
We plan to measure some more specimens.
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Copyright © 2003-2005 by Tom Chester, Michael Charters and Wayne Armstrong.
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/sd/plants/guides/anza_borrego/coyote_creek_wash.html
Comments and feedback: Tom Chester | Michael Charters| Wayne Armstrong
Last update: 28 December 2005.