Flora of Borrego Badlands Area

---

Introduction
Voucher Records
Field Surveys
Summary of Checklist and Species Not Found
Checklist

---

Introduction

This page has been updated on 22 January 2019, from more recent surveys, a new voucher search, and an iNaturalist search, but the text on most of the page has not yet been updated.

This checklist is a start at a flora of the Borrego Badlands Area, from vouchers and field surveys.

The floristic area denoted as the Borrego Badlands is delineated by the red rectangle in the following map:

The western area includes all of what is marked as the Borrego Badlands on the topographic map, plus additional non-badland area. This floristic area is extended to the east to the Imperial County Line since that eastern area is similar in many respects to the Badlands. The northern boundary is arbitrarily set along Highway S22 for convenience and clarity. The southern boundary is set to exclude the Borrego Sink Wash, San Felipe Creek, and the Ocotillo Wells Off-Road Vehicle Area.

Note that this area includes a majority of non-badlands area.

The name badlands refers to a intricately-sculptured landscape in easily-eroded rock, characterized by steep slopes, minimal vegetation, lack of a substantial regolith, and high drainage density. If this flora were confined to just the actual badland area, it would be much shorter, since only a small number of species can tolerate the lack of normal soil on the surface, and the extreme alkalinity of the exposed sedimentary rock. Most of the actual badlands have no vegetation at all on them.

Voucher Records

Vouchers were searched and examined on at least three different dates, so the following is a bit more complicated than it would be from a single voucher search.

The vouchers come from a search on 16 December 2007 of the Consortium of California Herbaria, and a search of the San Diego Plant Atlas and Herbarium records, and a later search for vouchers with coordinates on 30 November 2013, for 33.24 to 33.30° N. latitude and -116.27 to -116.19° E. longitude. Vouchers outside the target area were tossed.

More information on the on 16 December 2007 voucher search:

The Consortium records were searched for San Diego County specimens that contained the words badland or Font in the locality. Redundant vouchers were removed, and 73 vouchers from the Carrizo Badlands were eliminated, leaving 105 vouchers of 52 taxa. The dominant collectors in the Consortium records were Joe Barth, 26 vouchers; Jon P. Rebman, J. Gibson, A. Winner, & misc. botany vols., 47 vouchers (of 15 unique collection numbers); and Duffie Clemons, Erik Jonson, Mike Curto, 13 vouchers.

The San Diego records were retrieved for grid cells F26-F29 and G26-G29. One record of Clematis lasiantha was rejected, after an examination of the locality field revealed that the coordinates for this record were erroneous. This resulted in 150 vouchers of 80 taxa. Note that some of the San Diego vouchers also appear in the Consortium records. Only the Plant Atlas records are identified with collector. The dominant collector by far in the San Diego records was jb2 with 51 vouchers; the next largest collector had 7 vouchers.

The determinations for all San Diego Plant Atlas vouchers were all marked as verified by Jon Rebman except for the single voucher of Pectis papposa var. papposa which most likely had simply not yet been processed yet. There are many vouchers of this taxon nearby.

The size of the area delineated in red in the map above is roughly 51 square miles. However, the San Diego Plant Atlas voucher search covered eight Plant Atlas Grid Cells, a total of 72 square miles. On 21 November 2014, I examined the localities in the Consortium of all the species from this voucher set that we have not observed in this area, and tossed species without vouchers actually in the target area.

On 16 December 2007, there were 95 total unique taxa found by combining the two searches. Two of these taxa, Isocoma acradenia var. acradenia and Helianthus niveus ssp. tephrodes, did not appear in Floristic Area #16 in Duffie Clemons' 1985 Checklist of Vascular Plants of the Anza-Borrego Desert, but are present in the 2006 San Diego County Checklist.

Since 16 December 2007, I have augmented the vouchers as I have come across additional records in the course of other work. In particular, in late November 2008 I added a few records from searches for species that I had observed in the Santa Rosa Mountains but which had no vouchers recorded in my database.

The total number of vouchered taxa was 98 on 7 December 2008 from the first voucher search. Only 60 taxa were vouchered from the georeferenced vouchers retrieved on 30 November 2013. After tossing those species without vouchers actually in the target area, on 21 November 2014 the total number of taxa with vouchers is 97.

I have rejected one taxon, Mirabilis laevis var. villosa, that has two vouchers, since those are almost surely Mirabilis laevis var. retrorsa. It is difficult to properly determine some specimens of those two species that do not have the lower stems in the voucher sample, since those two varieties can look very similar in their inflorescence. All plants we've checked in this area have the retrose lower stem hairs of var. retrorsa.

Field Surveys

Fig. 2 shows the locations where we have recorded GPS points for individual species in this area.

Fig. 2. Locations where we have recorded GPS points for individual species in the Borrego Badlands area as of 15 December 2014. GPS Points from later surveys are not yet included in these maps. Left: map of individual GPS points. Note that some locations have as many as 40 species recorded at the same point. Right: cluster version showing how many points are in each area.
Click on the maps for larger versions.

Field surveys were done of the following areas:

• Ella Wash to Vista del Malpais along Ella and Short Wash, returning via Palo Verde and Smoke Tree Wash, on 4 December 2008 (by Tom Chester, finding 46 species) and on 11 March 2009 (by Tom Chester, Mike Crouse and Dave Stith, finding 81 species). A total of 6.0 unique miles were surveyed, with a total of 87 species from the union of the two surveys.

• the Arroyo Salado / Seventeen Palms / Five Palms Spring area on 19 December 2008 (by Tom Chester and Mike Crouse) and 23 March 2009 (by Tom Chester and Mike Crouse). A total of 4.4 unique miles were surveyed, with a total of 78 species from the union of the two surveys..

• The portions of Inspiration Wash and Fonts Point Wash near Highway S22 on 28 December 2005 (by Tom Chester) and 11 December 2007 (by Tom Chester). A total of 1.5 unique miles were surveyed

• A loop containing Fonts Point on 15 December 2007 (by Tom Chester, Wayne Armstrong). A total of 2.0 unique miles were surveyed, finding just 23 species.

• A loop from the Borrego Dump site, through the Borrego Dunes into the Borrego Badlands Area on 20 February 2009 (by Tom Chester, Michael Charters and Dave Stith). This survey was partially in the Borrego Valley area, and partially in the Borrego Badlands area. It has not yet been processed for the flora on this page.

• A survey in the Beckman Wash area on 10 January 2010 by Tom Chester, Anne Kelly, RT Hawke, Aaron Schusteff, Bill Sullivan and Pam Pallette. A total of 0.7 unique miles were surveyed, finding 29 species.

• Fonts Point on 15 November 2014 (by Keir Morse), adding six species to the Fonts Point flora.

• A 5.5 mile loop from the beginning of the Thimble Trail at S22, to roughly south 0.7 miles, then west 2.3 miles toward the hill called Paint on the topo map near Fonts Point Wash, then return on the north side of those Badlands Hills. This survey was done by Tom Chester, Keir Morse, Adrienne Ballwey, and Whitney Meier on 10 December 2014, finding 41 species.

• Two separate short surveys done on 15 December 2014 by Tom Chester, Keir Morse and Adrienne Ballwey in the area of the southern Thimble Trail. One survey was of 1.8 miles in a tributary to Short Wash just north of the southern end of the Thimble Trail, finding just 20 species. Another survey was of just 0.2 mile southwest of the south end of the Thimble Trail, finding just 14 species.

• A survey of Inspiration Wash to Inspiration Point on 9 January 2016 by Tom Chester, Keir Morse, Fred Melgert, Carla Hoegen, and Don Rideout. One new species was added to the Borrego Badlands Flora, a single plant of Orobanche cooperi.

• A survey of two of the upper tributaries of Fonts Point Wash to the Rim on 13 January 2016 by Tom Chester, Mike Crouse, Kate Harper, and Keir Morse.

Field Work near Fonts Point Wash

I recorded all species seen in the parts of Inspiration Wash and Fonts Point Wash near Highway S22 during targeted searches for Pilostyles thurberi and Psorothamnus emoryi on 28 December 2005, augmented by one species seen on 11 December 2007. A total of just 23 species were found in those searches.

Wayne Armstrong and I recorded all species seen on 15 December 2007 in a 2 mile loop containing Fonts Point; just 24 species were found in that search.

A total of 35 taxa were found in those December searches; 11 of those 35 taxa, 31%, are not among the 16 December 2007 vouchered species.

On 15 November 2014, Keir Morse added five species to the Fonts Point flora, and one species to the Inspiration Wash and Fonts Point Wash near Highway S22 flora.

Field Work from Ella Wash, Short Wash, Vista del Malpais, Palo Verde Wash and Smoke Tree Wash

On 4 December 2008, I recorded all species seen on an 8 mile loop trip from S22 at Ella Wash to Vista del Malpais along Ella and Short Wash, returning via Palo Verde and Smoke Tree Wash. A total of 44 taxa were found that could be fairly confidently identified, and are given in the checklist below. Three other species were seen: an unknown dead annual like Chaenactis; a dead Cryptantha species probably distinct from the C. barbigera in the checklist; and a dead annual grass that may have been Schismus barbatus.

Dave Stith, Mike Crouse and I did this loop again at prime time on 11 March 2009.

Field Work from Arroyo Salado / Seventeen Palms / Five Palms Spring area

Mike Crouse and I surveyed this area on 19 December 2008 and again at prime time on 23 March 2009.

Field Work from Beckman Wash area

On 10 January 2010, Tom Chester, Anne Kelly, RT Hawke, Aaron Schusteff, and Pam Pallette surveyed a 0.7 mile loop, finding just 29 species. Annual germination was almost non-existent on this survey, except for Brassica tournefortii.

Summary of Checklist and Species Not Found

As of 20 November 2014, the total number of taxa presented below is 133, 125 of which are native (the list may have been updated after this summary was done). The list contains 134 entries, since the species Cryptantha barbigera is given as well as its two varieties found here, since the earlier surveys did not distinguish the two varieties.

It is likely that this area may have the lowest native biodiversity of any part of San Diego County for the following reasons:

• there is little total elevation relief;

• the landscape is similar throughout the Badlands;

• much of the landscape is eroding rapidly, with very steep slopes, preventing plants from getting established; and

• much of the soil is highly alkaline, which is not tolerated by most species.

An area of this size, roughly 51 square miles, in most of the rest of San Diego County would have roughly 500 native species, whereas this area has just 135 so far recorded. Oddly, the next most depauperate area in my database is San Clemente Island, with 233 native taxa in 57 square miles.

Although the number of species may be small, any area that contains Southern California's Most Unusual Wildflower, along with rarely-seen southern California species such as Orcutt's woody-aster, Xylorhiza orcuttii and Algodones Dunes sunflower, Helianthus niveus ssp. tephrodes, is still of major botanic interest.

It is interesting that the list contains no lycophytes (Selaginella), no ferns, and no gymnosperms. Table 1 gives the most common Borrego Desert species that are not known from the Borrego Badlands.

Table 1. The Most Common Borrego Desert Species That Are ***Not*** Known From The Borrego Badlands

# areas	Common Name	Scientific Name
54	Gander's cholla	Cylindropuntia ganderi
43	teddy-bear cholla	Cylindropuntia bigelovii
42	California trixis	Trixis californica var. californica
42	common phacelia	Phacelia distans
41	San Felipe dogweed	Adenophyllum porophylloides
39	woolly lipfern	Cheilanthes parryi
38	rock hibiscus	Hibiscus denudatus
38	jojoba	Simmondsia chinensis
37	Parish's viguiera	Bahiopsis parishii
37	California buckwheat	Eriogonum fasciculatum var. polifolium
35	Engelmann's hedgehog cactus	Echinocereus engelmannii
34	thick-leaved ground cherry	Physalis crassifolia
34	California fish-hook cactus	Mammillaria dioica
31	chuparosa	Justicia californica
31	arrow-leaf	Pleurocoronis pluriseta
31	desert woolly-star	Eriastrum eremicum ssp. eremicum
30	whispering bells	Emmenanthe penduliflora var. penduliflora
30	star-flowered bedstraw	Galium stellatum
30	California fagonia	Fagonia laevis
29	Mojave ragwort	Senecio mohavensis
29	western tansy-mustard	Descurainia pinnata
29	bajada lupine	Lupinus concinnus
29	Wright's buckwheat	Eriogonum wrightii var. nodosum
28	Mormon tea	Ephedra aspera
27	Vasey's sage	Salvia vaseyi
27	apricot mallow	Sphaeralcea ambigua var. ambigua
27	threadstem	Pterostegia drymarioides
27	Anderson's boxthorn	Lycium andersonii
26	California matchweed	Gutierrezia californica
25	desert lotus	Acmispon rigidus
25	purple three-awn	Aristida purpurea
25	desert spike-moss	Selaginella eremophila
24	curvenut combseed	Pectocarya recurvata
24	California juniper	Juniperus californica
23	Fremont pincushion	Chaenactis fremontii
23	linear-leaved stillingia	Stillingia linearifolia
23	desert apricot	Prunus fremontii
22	star gilia	Gilia stellata
22	London rocket	Sisymbrium irio
22	California filago	Logfia filaginoides
22	short-winged deerweed	Acmispon glaber var. brevialatus
22	intermediate larkspur	Delphinium parishii ssp. subglobosum
22	ayenia	Ayenia compacta
21	Texas filaree	Erodium texanum
21	boundary goldenbush	Ericameria brachylepis
21	desert dudleya	Dudleya saxosa ssp. aloides
20	desert brickellia	Brickellia desertorum
20	beetle spurge	Euphorbia eriantha
20	short-bannered coastal lotus	Acmispon maritimus var. brevivexillus
20	white fiesta flower	Pholistoma membranaceum

Checklist for Borrego Badlands

See also print versions of these floras for specific areas, which may have been updated later than the checklist below:

• Arroyo Salado: html (4 pages) or pdf Clickbook booklet (1 double-sided page)
• Ella Wash / Smoke Tree Wash / Palo Verde Wash: html (4 pages) or pdf Clickbook booklet (1 double-sided page)

See:

• Notes on the Scientific Names Used At This Site and
• Information about the order in which the species are presented, and the links from the Scientific Name and Common Name.

An asterisk before the common name indicates a non-native species.

The column with header Famil is the first five letters of the Family Name.

The column with label BW links to the photo gallery page for each species at Fred Melgert and Carla Hoegen's BorregoWildflowers site.

The column #V gives the number of vouchers for this area, with a maximum value of 99.

The column iNat gives the number of iNaturalist observations for this area, with a maximum value of 99.

The columns with the header #Pls gives the minimum number of plants for each species observed in all areas, up to a maximum of 99. If we have not observed a species in our surveys, but it appears in Fred Melgert and Carla Hoegen's plant lists for here, the column contains FC.

Note that monsoonal species are not well-represented in the checklist for all areas due to a lack of summer / fall surveys in good monsoonal years, and winter annual / perennial species are not well-represented for some areas due to the lack of surveys in those areas in good winter rainfall years.

Version for printing, without lines and other text on this page: html (5 pages) or pdf Clickbook booklet (1 double-sided page). (See printing instructions for an explanation of these options)

#	Famil	Scientific Name Link goes to the Jepson eflora	(*)Common Name Link goes to Calphotos	BW	#V	iNat	#Pls
Eudicots
1	Amara	Amaranthus fimbriatus	fringed amaranth	BW			99
2	Amara	Tidestromia suffruticosa var. oblongifolia	Arizona honeysweet	BW	2	4	99
3	Apocy	Asclepias albicans	white-stemmed milkweed	BW			3
4	Apocy	Asclepias subulata	rush milkweed	BW	7	14	31
5	Apocy	Funastrum hirtellum	rambling milkweed	BW	1	3	11
6	Apoda	Pilostyles thurberi	Thurber's pilostyles	BW	7		46
7	Aster	Ambrosia dumosa	burroweed	BW	7	42	99
8	Aster	Ambrosia salsola var. salsola	cheesebush	BW	14	12	99
9	Aster	Baileya pauciradiata	Colorado Desert marigold	BW	7	3	99
10	Aster	Bebbia juncea var. aspera	sweetbush	BW	2	4	99
11	Aster	Calycoseris parryi	yellow tackstem	BW	1
12	Aster	Calycoseris wrightii	white tackstem	BW	2	6	66
13	Aster	Chaenactis artemisiifolia	meally white pincushion	BW	1
14	Aster	Chaenactis carphoclinia var. carphoclinia	pebble pincushion	BW	2	6	99
15	Aster	Chaenactis carphoclinia var. peirsonii	Peirson's pincushion	BW	6	2	99
16	Aster	Chaenactis stevioides	desert pincushion	BW	5	2	99
17	Aster	Dicoria canescens	desert dicoria	BW	7	8	99
18	Aster	Encelia farinosa	brittlebush	BW	6	8	99
19	Aster	Encelia farinosa var. farinosa	brittlebush	BW	3	11	FC
20	Aster	Encelia farinosa var. phenicodonta	purple disk flower brittlebush	BW		4	FC
21	Aster	Encelia frutescens	button encelia	BW	8	14	99
22	Aster	Geraea canescens	hairy desert-sunflower	BW	12	42	99
23	Aster	Helianthus niveus ssp. tephrodes	Algodones Dunes sunflower		2
24	Aster	Helianthus petiolaris ssp. canescens	gray desert sunflower	BW	5	19	2
25	Aster	Isocoma acradenia var. acradenia	entire-leaved alkali goldenbush	BW	2		FC
26	Aster	Isocoma acradenia var. eremophila	toothed-leaved alkali goldenbush	BW	5	20	99
27	Aster	Logfia depressa	dwarf filago	BW			30
28	Aster	Malacothrix glabrata	desert dandelion	BW	5	5	75
29	Aster	Monoptilon bellioides	desert star	BW	10	4	99
30	Aster	Palafoxia arida var. arida	Spanish needle	BW	14	29	99
31	Aster	Pectis papposa var. papposa	chinch-weed	BW	3	30	99
32	Aster	Perityle emoryi	Emory's rock-daisy	BW	6	10	99
33	Aster	Peucephyllum schottii	pygmy-cedar	BW	4	1	3
34	Aster	Pleurocoronis pluriseta	arrow-leaf	BW			5
35	Aster	Psathyrotes ramosissima	turtleback	BW	1	2	5
36	Aster	Rafinesquia neomexicana	desert chicory	BW	8	19	99
37	Aster	Sonchus asper ssp. asper	*prickly sow thistle	BW		1
38	Aster	Sonchus oleraceus	*sow thistle	BW	1		4
39	Aster	Stephanomeria exigua ssp. exigua	slender wreathplant	BW	1
40	Aster	Stephanomeria pauciflora	wire-lettuce	BW	3	13	99
41	Aster	Trichoptilium incisum	yellow-head	BW	1		21
42	Aster	Xylorhiza orcuttii	Orcutt's woody-aster	BW	24	95	99
43	Bigno	Chilopsis linearis ssp. arcuata	desert-willow	BW	3	40	99
44	Borag	Cryptantha angustifolia	narrow-leaved cryptantha	BW	18	7	99
45	Borag	Cryptantha barbigera var. barbigera	bearded cryptantha	BW	1		24
46	Borag	Cryptantha barbigera var. fergusoniae	Santa Rosa Mountain bearded cryptantha	BW	9		99
47	Borag	Cryptantha costata	ribbed cryptantha	BW	1	1	99
48	Borag	Cryptantha ganderi	Gander's cryptantha	BW	2
49	Borag	Cryptantha maritima	Guadalupe cryptantha	BW	7	3	99
50	Borag	Cryptantha micrantha var. micrantha	red-root cryptantha	BW			48
51	Borag	Eucrypta micrantha	desert eucrypta	BW	1		48
52	Borag	Pectocarya heterocarpa	chuckwalla pectocarya	BW	5	1	99
53	Borag	Pectocarya peninsularis	Baja pectocarya	BW			99
54	Borag	Pectocarya platycarpa	broad-fruited combseed	BW	1		15
55	Borag	Pectocarya recurvata	curvenut combseed	BW	1	1	21
56	Borag	Phacelia crenulata var. ambigua	heliotrope phacelia	BW	12	33	99
57	Borag	Phacelia crenulata var. minutiflora	little-flowered heliotrope phacelia	BW	4		6
58	Borag	Phacelia ivesiana	Ives' phacelia	BW			FC
59	Borag	Tiquilia palmeri	Palmer's coldenia	BW	6	18	99
60	Borag	Tiquilia plicata	plicate coldenia	BW	2	5	99
61	Brass	Brassica tournefortii	*Asian mustard	BW	11	31	99
62	Brass	Caulanthus lasiophyllus	California mustard	BW			42
63	Brass	Dithyrea californica	spectacle-pod	BW	9	12	99
64	Brass	Lepidium lasiocarpum ssp. lasiocarpum	hairy-podded pepper-grass	BW	8	13	99
65	Brass	Sisymbrium irio	*London rocket	BW	1		99
66	Brass	Streptanthella longirostris	longbeak streptanthella	BW	3		99
67	Cacta	Cylindropuntia echinocarpa	silver cholla	BW	3	72	99
68	Cacta	Cylindropuntia ramosissima	pencil cholla	BW	3	18	99
69	Cacta	Echinocactus polycephalus var. polycephalus	cottontop cactus	BW			1
70	Cacta	Ferocactus cylindraceus	California barrel cactus	BW	2	2	4
71	Cacta	Mammillaria tetrancistra	desert fish-hook cactus	BW		1	4
72	Cacta	Opuntia basilaris var. basilaris	beavertail cactus	BW		6	60
73	Campa	Nemacladus tenuis var. tenuis	desert threadplant	BW	1		1
74	Caryo	Achyronychia cooperi	frost mat	BW	9	6	99
75	Cheno	Atriplex canescens var. laciniata	Caleb saltbush	BW		14	99
76	Cheno	Atriplex elegans var. fasciculata	wheelscale	BW	1		99
77	Cheno	Atriplex hymenelytra	desert holly	BW	14	50	99
78	Cheno	Atriplex polycarpa	cattle saltbush	BW		3	99
79	Cheno	Chenopodium murale	*nettle-leaved goosefoot	BW	1		1
80	Cheno	Monolepis nuttalliana	Nuttall's poverty weed	BW			FC
81	Cheno	Salsola paulsenii	*Paulsen's Russian thistle	BW	1	1	61
82	Cheno	Suaeda nigra	bush seepweed	BW		1	35
83	Cleom	Cleomella obtusifolia	Mojave cleomella	BW	9	8	99
84	Eupho	Chamaesyce abramsiana	Abrams' prostrate spurge				99
85	Eupho	Chamaesyce micromera	Sonoran spurge	BW	3	5	99
86	Eupho	Chamaesyce ocellata ssp. arenicola	sand spurge			1	1
87	Eupho	Chamaesyce polycarpa	small-seeded spurge	BW	9	11	99
88	Eupho	Chamaesyce setiloba	starfish (Yuma) spurge	BW			99
89	Eupho	Croton californicus	California croton	BW	9	11	99
90	Eupho	Ditaxis lanceolata	narrowleaf ditaxis	BW	1		43
91	Eupho	Ditaxis neomexicana	New Mexico ditaxis	BW			9
92	Eupho	Stillingia spinulosa	annual stillingia	BW	9	7	99
93	Fabac	Acmispon maritimus var. brevivexillus	short-bannered coastal lotus	BW			5
94	Fabac	Acmispon strigosus	strigose lotus	BW	4	2	99
95	Fabac	Astragalus aridus	annual desert milk-vetch				1
96	Fabac	Astragalus crotalariae	Salton milk-vetch	BW	13	5	99
97	Fabac	Astragalus didymocarpus var. dispermus	dwarf white milk-vetch	BW	1		7
98	Fabac	Astragalus lentiginosus var. borreganus	Borrego milk-vetch	BW	14	1	99
99	Fabac	Dalea mollis	silky dalea	BW	5	3	99
100	Fabac	Dalea mollissima	downy dalea	BW	3	2	47
101	Fabac	Lupinus arizonicus	Arizona lupine	BW	6	15	99
102	Fabac	Lupinus shockleyi	desert lupine	BW		4	27
103	Fabac	Parkinsonia florida	blue palo verde	BW	5	6	99
104	Fabac	Prosopis glandulosa var. torreyana	honey mesquite	BW	1	1	43
105	Fabac	Psorothamnus emoryi	Emory's indigo-bush	BW	12	14	99
106	Fabac	Psorothamnus schottii	indigo bush	BW	5	34	99
107	Fabac	Psorothamnus spinosus	smoke tree	BW	4	17	99
108	Fabac	Senegalia greggii	catclaw	BW		2	99
109	Fouqu	Fouquieria splendens ssp. splendens	ocotillo	BW	7	53	99
110	Geran	Erodium cicutarium	*redstem filaree	BW	1		17
111	Geran	Erodium texanum	Texas filaree	BW	1	6	99
112	Krame	Krameria bicolor	white rhatany	BW	4	24	99
113	Krame	Krameria erecta	Pima rhatany	BW	3	8	99
114	Lamia	Hyptis emoryi	desert-lavender	BW	7	2	99
115	Lamia	Salvia columbariae	chia	BW	1		5
116	Loasa	Mentzelia affinis	yellow blazing star	BW			1
117	Loasa	Mentzelia albicaulis	white-stemmed blazing star	BW			20
118	Loasa	Mentzelia involucrata	bracted blazing star	BW	3	11	34
119	Loasa	Petalonyx thurberi ssp. thurberi	Thurber's sandpaper-plant	BW	4	10	99
120	Malva	Eremalche exilis	white mallow	BW			6
121	Malva	Eremalche rotundifolia	desert five-spot	BW		6	99
122	Malva	Hibiscus denudatus	rock hibiscus	BW			13
123	Malva	Malva parviflora	*cheeseweed	BW			2
124	Mollu	Mollugo cerviana	*carpet-weed	BW			10
125	Monti	Calyptridium monandrum	sand cress	BW			13
126	Monti	Cistanthe ambigua	dead man's fingers	BW	8	15	99
127	Nycta	Abronia villosa var. villosa	hairy sand-verbena	BW	19	52	99
128	Nycta	Allionia incarnata var. incarnata	small-flowered trailing four o'clock	BW	1	2	99
129	Nycta	Boerhavia wrightii	Wright's spiderling	BW	1		3
130	Nycta	Mirabilis laevis var. retrorsa	Bigelow's desert four-o'clock	BW	4	1	71
131	Onagr	Chylismia cardiophylla ssp. cardiophylla	heartleaf suncup	BW	4	2	8
132	Onagr	Chylismia claviformis ssp. peirsonii	brown-eyed primrose	BW	13	39	99
133	Onagr	Eremothera boothii ssp. condensata	Booth's evening primrose	BW	5	15	99
134	Onagr	Eulobus californicus	California suncup	BW	6	6	99
135	Onagr	Oenothera deltoides ssp. deltoides	dune primrose	BW	3	26	99
136	Oroba	Orobanche cooperi	Cooper's broomrape	BW	7	1	1
137	Papav	Eschscholzia minutiflora ssp. minutiflora	small-flowered poppy	BW	7	3	99
138	Papav	Eschscholzia parishii	Parish's poppy	BW	7	6	99
139	Plant	Mohavea confertiflora	ghost flower	BW			11
140	Plant	Plantago ovata	desert plantain	BW	9	10	99
141	Polem	Aliciella latifolia ssp. latifolia	broad-leaf gilia	BW	7	15	99
142	Polem	Gilia stellata	star gilia	BW			4
143	Polem	Langloisia setosissima ssp. setosissima	bristly langloisia	BW	4	11	49
144	Polem	Linanthus jonesii	Jones' linanthus	BW			75
145	Polem	Loeseliastrum matthewsii	desert calico	BW	4	2	20
146	Polem	Loeseliastrum schottii	Schott's calico	BW			99
147	Polyg	Chorizanthe brevicornu var. brevicornu	brittle spineflower	BW	9	4	99
148	Polyg	Chorizanthe corrugata	wrinkled spineflower	BW	5	2	99
149	Polyg	Chorizanthe rigida	devil's spineflower	BW	5	37	99
150	Polyg	Eriogonum deflexum var. deflexum	flat-topped buckwheat	BW	3	8	45
151	Polyg	Eriogonum inflatum	desert trumpet	BW	1	1	99
152	Polyg	Eriogonum thomasii	Thomas' buckwheat	BW	10	6	99
153	Polyg	Eriogonum trichopes	little desert trumpet	BW	5	25	99
154	Resed	Oligomeris linifolia	lineleaf whitepuff	BW	7	5	99
155	Solan	Datura discolor	desert thornapple	BW			99
156	Solan	Lycium brevipes var. brevipes	desert boxthorn	BW		8	68
157	Solan	Nicotiana obtusifolia	desert tobacco	BW	3		10
158	Solan	Physalis crassifolia	thick-leaved ground cherry	BW	1	1	68
159	Tamar	Tamarix aphylla	*athel	BW		1
160	Tamar	Tamarix ramosissima	*saltcedar	BW		1	FC
161	Visca	Phoradendron californicum	desert mistletoe	BW	4	1	99
162	Zygop	Fagonia laevis	California fagonia	BW		1	76
163	Zygop	Fagonia pachyacantha	sticky fagonia	BW			12
164	Zygop	Kallstroemia californica	California caltrop	BW	3	5	99
165	Zygop	Larrea tridentata	creosote bush	BW	24	60	99
166	Zygop	Tribulus terrestris	*puncture-vine	BW			2
Monocots
167	Agava	Agave deserti var. deserti	desert agave	BW			1
168	Agava	Hesperocallis undulata	desert lily	BW	11	116	99
169	Areca	Washingtonia filifera	California fan palm	BW		1	23
170	Junca	Juncus cooperi	Cooper's rush	BW	1	1	5
171	Poace	Aristida adscensionis	six-weeks three-awn	BW	5	3	99
172	Poace	Aristida californica	California three-awn				3
173	Poace	Bouteloua aristidoides var. aristidoides	needle grama	BW	2		4
174	Poace	Bouteloua barbata var. barbata	six-weeks grama	BW			44
175	Poace	Bromus madritensis ssp. rubens	*red brome	BW	2
176	Poace	Cynodon dactylon	*Bermuda grass	BW			10
177	Poace	Dasyochloa pulchella	fluff grass	BW			50
178	Poace	Distichlis spicata	saltgrass	BW	2	3	99
179	Poace	Hilaria rigida	big galleta	BW	14	28	99
180	Poace	Hordeum murinum	*foxtail barley	BW			99
181	Poace	Phragmites australis	common reed	BW			10
182	Poace	Schismus barbatus	*Mediterranean schismus	BW	10	1	99
183	Poace	Stipa hymenoides	Indian ricegrass	BW	4	4	FC

Go to:

• Plants of Southern California: Regional Floras