Flora of Uppermost Box Canyon Road near I-10, Riverside County

Introduction

This flora is compiled from vouchers and from unreviewed iNat observations, as of 16 January 2020, with an additional six species from a brief survey on 17 January 2020 by the authors.

Vouchers and Inat were each searched using the following rectangle: 33.63 to 33.66° N. Latitude, and -115.82 to -115.78 E. Longitude. This rectangle roughly extends from I-10 south to the north base of the Orocopia Mountains, and about the same distance east-west, centered on the longitude where Box Canyon Road meets I-10.

Voucher localities were reviewed, and ones with vague localities were tossed.

iNat observations with extremely large position uncertainties were tossed, as well as ones with obscured coordinates.

Checklist for Mecca Hills / Box Canyon Area

See:

• Notes on the Scientific Names Used At This Site and
• Information about the links from the Scientific Name and Common Name.

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

The column with header #V gives the number of vouchers in this area. The column with header #iNat gives the number of iNat observations in this area. An "x" in this column indicates an additional species observed by the authors, with a "~" in front of the x if the species wasn't identified securely.

There are no lycopods; ferns; or gymosperms in this flora!

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#	Famil	Scientific Name	(*)Common Name	#V	#iNat
Eudicots
1	Apocy	Asclepias subulata	rush milkweed	1	1
2	Aster	Ambrosia dumosa	burroweed		14
3	Aster	Ambrosia salsola	cheesebush	2	9
4	Aster	Atrichoseris platyphylla	gravel-ghost	3	2
5	Aster	Bahiopsis parishii	Parish's goldeneye		1
6	Aster	Bebbia juncea var. aspera	sweetbush		3
7	Aster	Brickellia incana	woolly brickellia	5
8	Aster	Chaenactis carphoclinia var. carphoclinia	pebble pincushion	1
9	Aster	Chaenactis fremontii	Fremont pincushion		1
10	Aster	Encelia farinosa	brittlebush		11
11	Aster	Malacothrix glabrata	desert dandelion		2
12	Aster	Monoptilon bellidiforme	desert star	1	1
13	Aster	Monoptilon bellioides	desert star	1	1
14	Aster	Palafoxia arida var. arida	Spanish needle	2
15	Aster	Pectis papposa var. papposa	chinch-weed	3	1
16	Aster	Perityle emoryi	Emory's rock-daisy		3
17	Aster	Peucephyllum schottii	pygmy-cedar	1	2
18	Aster	Pleurocoronis pluriseta	arrow-leaf		1
19	Aster	Rafinesquia neomexicana	desert chicory		1
20	Aster	Senecio mohavensis	Mojave ragwort		3
21	Aster	Stephanomeria pauciflora	wire-lettuce		1
22	Aster	Trichoptilium incisum	yellow-head	2	2
23	Aster	Trixis californica var. californica	California trixis		2
24	Aster	Xylorhiza tortifolia var. tortifolia	Mojave-aster	1
25	Bigno	Chilopsis linearis ssp. arcuata	desert-willow	1
26	Borag	Cryptantha angustifolia	narrow-leaved cryptantha	3	2
27	Borag	Cryptantha barbigera var. barbigera	bearded cryptantha	1
28	Borag	Cryptantha maritima	Guadalupe cryptantha	1
29	Borag	Cryptantha pterocarya	wing-nut cryptantha		1
30	Borag	Emmenanthe penduliflora var. penduliflora	whispering bells	1	6
31	Borag	Eucrypta chrysanthemifolia	eucrypta		1
32	Borag	Nama demissa var. demissa	purple mat	2	6
33	Borag	Pectocarya anisocarpa	Blair Valley combseed		1
34	Borag	Pectocarya platycarpa	broad-fruited combseed		1
35	Borag	Pectocarya recurvata	curvenut combseed	1
36	Borag	Phacelia campanularia	desert bluebells		4
37	Borag	Phacelia crenulata	heliotrope phacelia		4
38	Borag	Phacelia crenulata var. ambigua	heliotrope phacelia	1
39	Borag	Phacelia distans	common phacelia		5
40	Borag	Tiquilia palmeri	Palmer's coldenia	1
41	Brass	Brassica tournefortii	*Sahara mustard		12
42	Brass	Caulanthus lasiophyllus	California mustard	1	1
43	Brass	Descurainia pinnata	western tansy-mustard		3
44	Brass	Dithyrea californica	spectacle-pod	1
45	Brass	Lepidium fremontii	desert pepper-grass	1	2
46	Brass	Lepidium lasiocarpum ssp. lasiocarpum	hairy-podded pepper-grass	1	2
47	Brass	Sisymbrium irio	*London rocket	1	4
48	Cacta	Cylindropuntia echinocarpa	silver cholla		21
49	Cacta	Cylindropuntia ramosissima	pencil cholla		15
50	Cacta	Echinocereus engelmannii	Engelmann's hedgehog cactus		4
51	Cacta	Opuntia basilaris var. basilaris	beavertail cactus		11
52	Campa	Nemacladus glanduliferus	glandular nemacladus		1
53	Caryo	Achyronychia cooperi	frost mat		1
54	Cleom	Peritoma arborea	bladderpod		x
55	Crass	Crassula connata	pygmy-weed		1
56	Cucur	Brandegea bigelovii	desert star-vine	1	5
57	Eupho	Chamaesyce micromera	Sonoran spurge	2
58	Eupho	Chamaesyce polycarpa	small-seeded spurge	2	4
59	Eupho	Chamaesyce setiloba	starfish (Yuma) spurge	2	1
60	Eupho	Croton californicus	California croton	2
61	Eupho	Ditaxis lanceolata	narrowleaf ditaxis		1
62	Eupho	Ditaxis neomexicana	New Mexico ditaxis	1
63	Eupho	Ditaxis serrata var. californica	California ditaxis	2
64	Eupho	Euphorbia eriantha	beetle spurge	1
65	Fabac	Acmispon strigosus	strigose lotus	2	4
66	Fabac	Dalea mollis	silky dalea		1
67	Fabac	Lupinus arizonicus	Arizona lupine	5	18
68	Fabac	Olneya tesota	ironwood	1	5
69	Fabac	Parkinsonia florida	blue palo verde	1	5
70	Fabac	Parkinsonia microphylla	yellow palo verde	1
71	Fabac	Psorothamnus schottii	indigo bush		2
72	Fabac	Psorothamnus spinosus	smoke tree	1	1
73	Fabac	Senegalia greggii	catclaw	1	2
74	Fabac	Senna armata	spiny senna		4
75	Fouqu	Fouquieria splendens ssp. splendens	ocotillo	2	15
76	Geran	Erodium cicutarium	*redstem filaree		5
77	Geran	Erodium texanum	Texas filaree		2
78	Krame	Krameria bicolor	white rhatany	1
79	Lamia	Hyptis emoryi	desert-lavender	1	8
80	Lamia	Salvia columbariae	chia	1	10
81	Loasa	Mentzelia albicaulis	white-stemmed blazing star		2
82	Loasa	Mentzelia involucrata	bracted blazing star	2	8
83	Loasa	Petalonyx thurberi ssp. thurberi	Thurber's sandpaper-plant	3
84	Malva	Eremalche rotundifolia	desert five-spot	1	1
85	Malva	Sphaeralcea ambigua	apricot mallow		7
86	Malva	Sphaeralcea ambigua var. ambigua	apricot mallow	1
87	Mollu	Mollugo cerviana	*carpet-weed	1
88	Monti	Calyptridium monandrum	sand cress		2
89	Nycta	Abronia villosa	hairy sand verbena	1
90	Nycta	Allionia incarnata	trailing four o'clock	4
91	Nycta	Boerhavia triquetra var. intermedia	fivewing spiderling	2
92	Nycta	Boerhavia wrightii	Wright's spiderling	2
93	Nycta	Mirabilis laevis var. retrorsa	Bigelow's desert four-o'clock	1
94	Nycta	Mirabilis laevis var. villosa	Bigelow's desert four-o'clock		~x
95	Nycta	Mirabilis multiflora var. pubescens	giant four o'clock		x
96	Onagr	Chylismia brevipes ssp. brevipes	golden suncup	4	17
97	Onagr	Chylismia cardiophylla	heartleaf suncup	1
98	Onagr	Chylismia claviformis ssp. aurantiaca	brown-eyed primrose	1	4
99	Onagr	Eremothera boothii ssp. condensata	Booth's evening primrose	3	4
100	Onagr	Eremothera refracta	narrow-leaf suncup	3	4
101	Onagr	Eulobus californicus	California suncup		x
102	Onagr	Oenothera deltoides ssp. deltoides	dune primrose	1
103	Papav	Eschscholzia minutiflora	small-flowered poppy	2	1
104	Papav	Eschscholzia parishii	Parish's poppy	1	4
105	Phrym	Mimulus bigelovii var. bigelovii	Bigelow's monkeyflower		2
106	Plant	Antirrhinum filipes	desert twining snapdragon		2
107	Plant	Mohavea confertiflora	ghost flower	1
108	Plant	Plantago ovata	desert plantain	1	9
109	Polem	Eriastrum eremicum ssp. eremicum	desert woolly-star		~x
110	Polem	Langloisia setosissima ssp. setosissima	bristly langloisia	1
111	Polem	Linanthus jonesii	Jones' linanthus	1	1
112	Polem	Loeseliastrum matthewsii	desert calico		2
113	Polyg	Chorizanthe brevicornu var. brevicornu	brittle spineflower		1
114	Polyg	Chorizanthe rigida	devil's spineflower	1
115	Polyg	Eriogonum inflatum	desert trumpet		3
116	Polyg	Eriogonum maculatum	spotted buckwheat	1
117	Polyg	Eriogonum thomasii	Thomas' buckwheat	3
118	Polyg	Pterostegia drymarioides	fairy bowties, threadstem		1
119	Rubia	Galium stellatum	star-flowered bedstraw	1
120	Simmo	Simmondsia chinensis	jojoba	4	2
121	Solan	Datura wrightii	sacred datura	1
122	Solan	Lycium andersonii	Anderson's boxthorn		~x
123	Solan	Nicotiana obtusifolia	desert tobacco	1
124	Solan	Physalis crassifolia	thick-leaved ground cherry	1	1
125	Visca	Phoradendron californicum	desert mistletoe	2	2
126	Zygop	Fagonia laevis	California fagonia	3	9
127	Zygop	Kallstroemia californica	California caltrop	2
128	Zygop	Larrea tridentata	creosote bush		16
129	Zygop	Tribulus terrestris	*puncture-vine	1
Monocots
130	Poace	Bouteloua aristidoides var. aristidoides	needle grama	2
131	Poace	Bouteloua barbata var. barbata	six-weeks grama	1
132	Poace	Schismus barbatus	*Mediterranean schismus	1	5

Voucher data provided by the participants of the Consortium of California Herbaria (ucjeps.berkeley.edu/consortium/)

Go to:

• Plants of Southern California: Regional Floras