Flora of Truckhaven Rocks Area

Flora of Truckhaven Rocks Area

Introduction
Checklist

Introduction

The Truckhaven Rocks are beautiful isolated Badlands Formation Sediments named for their presence just north of the old Truckhaven Trail. They are the same formation as the rocks to the west, but have been isolated from them by erosion. For more info on this hike, see:

Modern Hiker
Guide from the Canyoneers in the San Diego Reader
Fred Melgert and Carla Hoegen's Hiking Page

The flora is from:

Fieldwork by Tom Chester, Kate Harper, and Mike Crouse on 17 January 2016, when annuals were just germinating.
A 45 minute spot survey of an excellent flower area 0.1 miles west of the main Truckhaven Rocks Wash, on 27 January 2019, by Tom Chester, Nancy Accola, Walt Fidler, John Randall, Don Rideout, and Joe Woods.
Fieldwork by Tom Chester, Walt Fidler, Don Rideout, Kate Harper, Joe Woods, Jim Roberts, and Terry Hunefeld on 1 February 2019, after good October rains had produced a good bloom here.
Fieldwork by Fred Melgert and Carla Hoegen on 10 April 2012, 21 January 2019, and 29 January 2019.
A half day of fieldwork by Tom Chester, Nancy Accola, and Joe Woods on 24 December 2019.
iNaturalist observations, mostly by Fred Melgert and Carla Hoegen, Terry Hunefeld, and Don Rideout.

There were only 22 vouchers that were possibly from this area, which contributed no additional species.
Checklist for Truckhaven Rocks Area

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 label BW links to the photo gallery page for each species at Fred Melgert and Carla Hoegen's BorregoWildflowers site.
The column with header #Pls gives the minimum number of plants observed in the union of all the field surveys done here, up to a maximum number of 99. An iNat in this column indicates a species with an iNaturalist observations that we have not yet observed. An FC in this column indicates a species in the Carla Hoegen and Fred Melgert plant list for this area, that was not observed in surveys where abundances were estimated, and that does not have an iNat observation.
See also Carla and Fred's Plant List, which may have been updated more recently than this page.
Version for printing, without lines and other text on this page: html (4 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
#Pls
Eudicots
1 Amara Amaranthus fimbriatus fringed amaranth BW 99
2 Amara Amaranthus hybridus *slim amaranth ~1
3 Amara Tidestromia suffruticosa var. oblongifolia Arizona honeysweet BW 4
4 Apocy Asclepias albicans white-stemmed milkweed BW 1
5 Apocy Asclepias subulata rush milkweed BW 8
6 Apocy Funastrum hirtellum rambling milkweed BW 10
7 Apoda Pilostyles thurberi Thurber's pilostyles BW FC
8 Aster Adenophyllum porophylloides San Felipe dogweed BW iNat
9 Aster Ambrosia dumosa burroweed BW 99
10 Aster Ambrosia salsola var. salsola cheesebush BW 99
11 Aster Bebbia juncea var. aspera sweetbush BW 50
12 Aster Calycoseris parryi yellow tackstem BW iNat
13 Aster Calycoseris wrightii white tackstem BW 4
14 Aster Chaenactis carphoclinia var. carphoclinia pebble pincushion BW 30
15 Aster Chaenactis stevioides desert pincushion BW 1
16 Aster Dicoria canescens desert dicoria BW 6
17 Aster Encelia farinosa brittlebush BW 99
18 Aster Geraea canescens hairy desert-sunflower BW 5
19 Aster Malacothrix glabrata desert dandelion BW 1
20 Aster Monoptilon bellioides desert star BW 1
21 Aster Palafoxia arida var. arida Spanish needle BW 6
22 Aster Pectis papposa var. papposa chinch-weed BW iNat
23 Aster Perityle emoryi Emory's rock-daisy BW 99
24 Aster Peucephyllum schottii pygmy-cedar BW 9
25 Aster Pleurocoronis pluriseta arrow-leaf BW 35
26 Aster Psathyrotes ramosissima turtleback BW iNat
27 Aster Rafinesquia neomexicana desert chicory BW 10
28 Aster Senecio mohavensis Mojave ragwort BW FC
29 Aster Sonchus oleraceus *sow thistle BW 1
30 Aster Stephanomeria pauciflora wire-lettuce BW 50
31 Aster Trichoptilium incisum yellow-head BW 3
32 Aster Trixis californica var. californica California trixis BW iNat
33 Aster Xylorhiza orcuttii Orcutt's woody-aster BW 54
34 Bigno Chilopsis linearis ssp. arcuata desert-willow BW iNat
35 Borag Cryptantha angustifolia narrow-leaved cryptantha BW 99
36 Borag Cryptantha barbigera var. barbigera bearded cryptantha BW 2
37 Borag Cryptantha barbigera var. fergusoniae Santa Rosa Mountain bearded cryptantha BW 25
38 Borag Cryptantha maritima Guadalupe cryptantha BW 99
39 Borag Pectocarya heterocarpa chuckwalla pectocarya BW 5
40 Borag Pectocarya peninsularis Baja pectocarya BW 99
41 Borag Pectocarya recurvata curvenut combseed BW 1
42 Borag Phacelia crenulata var. ambigua heliotrope phacelia BW 99
43 Borag Plagiobothrys jonesii Jones' popcorn flower BW 1
44 Borag Tiquilia palmeri Palmer's coldenia BW FC
45 Borag Tiquilia plicata plicate coldenia BW 10
46 Brass Brassica tournefortii *Sahara mustard BW 50
47 Brass Caulanthus lasiophyllus California mustard BW iNat
48 Brass Dithyrea californica spectacle-pod BW iNat
49 Brass Lepidium lasiocarpum ssp. lasiocarpum hairy-podded pepper-grass BW 20
50 Brass Sisymbrium irio *London rocket BW 5
51 Brass Streptanthella longirostris longbeak streptanthella BW 40
52 Cacta Cylindropuntia echinocarpa silver cholla BW 50
53 Cacta Cylindropuntia ganderi Gander's cholla BW 3
54 Cacta Cylindropuntia ramosissima pencil cholla BW 55
55 Cacta Ferocactus cylindraceus California barrel cactus BW 3
56 Cacta Mammillaria tetrancistra desert fish-hook cactus BW 2
57 Cacta Opuntia basilaris var. basilaris beavertail cactus BW 20
58 Campa Nemacladus glanduliferus glandular nemacladus BW 3
59 Caryo Achyronychia cooperi frost mat BW 50
60 Cheno Atriplex canescens var. laciniata Caleb four-wing saltbush BW FC
61 Cheno Atriplex hymenelytra desert holly BW 99
62 Cheno Atriplex polycarpa cattle saltbush BW 10
63 Cheno Chenopodium murale *nettle-leaved goosefoot BW 4
64 Eupho Chamaesyce melanadenia red-gland spurge BW FC
65 Eupho Chamaesyce micromera Sonoran spurge BW 3
66 Eupho Chamaesyce polycarpa small-seeded spurge BW 50
67 Eupho Chamaesyce setiloba starfish (Yuma) spurge BW 3
68 Eupho Ditaxis lanceolata narrowleaf ditaxis BW 3
69 Eupho Ditaxis neomexicana New Mexico ditaxis BW 5
70 Eupho Ditaxis serrata var. californica California ditaxis BW 1
71 Eupho Euphorbia eriantha beetle spurge BW 1
72 Fabac Acmispon maritimus var. brevivexillus short-bannered coastal lotus BW 3
73 Fabac Acmispon strigosus strigose lotus BW 50
74 Fabac Dalea mollis silky dalea BW 11
75 Fabac Dalea mollissima downy dalea BW 10
76 Fabac Lupinus arizonicus Arizona lupine BW 99
77 Fabac Psorothamnus emoryi Emory's indigo-bush BW 5
78 Fabac Psorothamnus schottii indigo bush BW 99
79 Fabac Psorothamnus spinosus smoke tree BW 99
80 Fabac Senegalia greggii catclaw BW 99
81 Fouqu Fouquieria splendens ssp. splendens ocotillo BW 99
82 Geran Erodium texanum Texas filaree BW 99
83 Krame Krameria bicolor white rhatany BW 25
84 Krame Krameria erecta Pima rhatany BW 2
85 Lamia Hyptis emoryi desert-lavender BW 60
86 Loasa Mentzelia involucrata bracted blazing star BW 10
87 Loasa Petalonyx thurberi ssp. thurberi Thurber's sandpaper-plant BW 1
88 Malva Eremalche rotundifolia desert five-spot BW 6
89 Malva Hibiscus denudatus rock hibiscus BW 4
90 Malva Malva parviflora *cheeseweed BW 5
91 Monti Calyptridium monandrum sand cress BW 2
92 Monti Cistanthe ambigua dead man's fingers BW iNat
93 Nycta Abronia villosa var. villosa hairy sand-verbena BW 7
94 Nycta Allionia incarnata var. incarnata small-flowered trailing four o'clock BW 25
95 Nycta Boerhavia triquetra var. intermedia fivewing spiderling BW 1sp
96 Nycta Mirabilis laevis var. retrorsa Bigelow's desert four-o'clock BW 30
97 Onagr Chylismia cardiophylla ssp. cardiophylla heartleaf suncup BW 9
98 Onagr Chylismia claviformis ssp. peirsonii brown-eyed primrose BW 99
99 Onagr Eremothera boothii ssp. condensata Booth's evening primrose BW 35
100 Onagr Eremothera chamaenerioides long-fruit suncup BW iNat
101 Onagr Eulobus californicus California suncup BW 99
102 Oroba Orobanche cooperi Cooper's broomrape BW iNat
103 Papav Eschscholzia minutiflora ssp. minutiflora small-flowered poppy BW 1
104 Papav Eschscholzia parishii Parish's poppy BW 99
105 Plant Mohavea confertiflora ghost flower BW 7
106 Plant Plantago ovata desert plantain BW 99
107 Polem Aliciella latifolia ssp. latifolia broad-leaf gilia BW 68
108 Polem Gilia stellata star gilia BW 10
109 Polem Langloisia setosissima ssp. setosissima bristly langloisia BW iNat
110 Polem Loeseliastrum matthewsii desert calico BW 1sp
111 Polem Loeseliastrum schottii Schott's calico BW iNat
112 Polyg Chorizanthe brevicornu var. brevicornu brittle spineflower BW 99
113 Polyg Chorizanthe corrugata wrinkled spineflower BW 1
114 Polyg Chorizanthe rigida devil's spineflower BW 25
115 Polyg Eriogonum deflexum var. deflexum flat-topped buckwheat BW FC
116 Polyg Eriogonum inflatum desert trumpet BW 13
117 Polyg Eriogonum thomasii Thomas' buckwheat BW 30
118 Polyg Eriogonum trichopes little desert trumpet BW iNat
119 Polyg Pterostegia drymarioides fairy bowties, threadstem BW iNat
120 Solan Datura discolor desert thornapple BW 1
121 Solan Lycium brevipes var. brevipes desert boxthorn BW FC
122 Solan Nicotiana obtusifolia desert tobacco BW 25
123 Solan Physalis crassifolia thick-leaved ground cherry BW 2
124 Visca Phoradendron californicum desert mistletoe BW 99
125 Zygop Fagonia pachyacantha sticky fagonia BW 14
126 Zygop Larrea tridentata creosote bush BW 99
Monocots
127 Agava Agave deserti var. deserti desert agave BW FC
128 Agava Hesperocallis undulata desert lily BW 60
129 Poace Aristida adscensionis six-weeks three-awn BW 99
130 Poace Bouteloua aristidoides var. aristidoides needle grama BW 2
131 Poace Bouteloua barbata var. barbata six-weeks grama BW 1
132 Poace Hilaria rigida big galleta BW 50
133 Poace Pennisetum setaceum *fountain grass BW FC
134 Poace Schismus barbatus *Mediterranean schismus BW 99

We thank John Randall for helping with the spot survey on 27 January 2019.

#	Famil	Scientific Name Link goes to the Jepson eflora	(*)Common Name Link goes to Calphotos	BW	#Pls
Eudicots
1	Amara	Amaranthus fimbriatus	fringed amaranth	BW	99
2	Amara	Amaranthus hybridus	*slim amaranth		~1
3	Amara	Tidestromia suffruticosa var. oblongifolia	Arizona honeysweet	BW	4
4	Apocy	Asclepias albicans	white-stemmed milkweed	BW	1
5	Apocy	Asclepias subulata	rush milkweed	BW	8
6	Apocy	Funastrum hirtellum	rambling milkweed	BW	10
7	Apoda	Pilostyles thurberi	Thurber's pilostyles	BW	FC
8	Aster	Adenophyllum porophylloides	San Felipe dogweed	BW	iNat
9	Aster	Ambrosia dumosa	burroweed	BW	99
10	Aster	Ambrosia salsola var. salsola	cheesebush	BW	99
11	Aster	Bebbia juncea var. aspera	sweetbush	BW	50
12	Aster	Calycoseris parryi	yellow tackstem	BW	iNat
13	Aster	Calycoseris wrightii	white tackstem	BW	4
14	Aster	Chaenactis carphoclinia var. carphoclinia	pebble pincushion	BW	30
15	Aster	Chaenactis stevioides	desert pincushion	BW	1
16	Aster	Dicoria canescens	desert dicoria	BW	6
17	Aster	Encelia farinosa	brittlebush	BW	99
18	Aster	Geraea canescens	hairy desert-sunflower	BW	5
19	Aster	Malacothrix glabrata	desert dandelion	BW	1
20	Aster	Monoptilon bellioides	desert star	BW	1
21	Aster	Palafoxia arida var. arida	Spanish needle	BW	6
22	Aster	Pectis papposa var. papposa	chinch-weed	BW	iNat
23	Aster	Perityle emoryi	Emory's rock-daisy	BW	99
24	Aster	Peucephyllum schottii	pygmy-cedar	BW	9
25	Aster	Pleurocoronis pluriseta	arrow-leaf	BW	35
26	Aster	Psathyrotes ramosissima	turtleback	BW	iNat
27	Aster	Rafinesquia neomexicana	desert chicory	BW	10
28	Aster	Senecio mohavensis	Mojave ragwort	BW	FC
29	Aster	Sonchus oleraceus	*sow thistle	BW	1
30	Aster	Stephanomeria pauciflora	wire-lettuce	BW	50
31	Aster	Trichoptilium incisum	yellow-head	BW	3
32	Aster	Trixis californica var. californica	California trixis	BW	iNat
33	Aster	Xylorhiza orcuttii	Orcutt's woody-aster	BW	54
34	Bigno	Chilopsis linearis ssp. arcuata	desert-willow	BW	iNat
35	Borag	Cryptantha angustifolia	narrow-leaved cryptantha	BW	99
36	Borag	Cryptantha barbigera var. barbigera	bearded cryptantha	BW	2
37	Borag	Cryptantha barbigera var. fergusoniae	Santa Rosa Mountain bearded cryptantha	BW	25
38	Borag	Cryptantha maritima	Guadalupe cryptantha	BW	99
39	Borag	Pectocarya heterocarpa	chuckwalla pectocarya	BW	5
40	Borag	Pectocarya peninsularis	Baja pectocarya	BW	99
41	Borag	Pectocarya recurvata	curvenut combseed	BW	1
42	Borag	Phacelia crenulata var. ambigua	heliotrope phacelia	BW	99
43	Borag	Plagiobothrys jonesii	Jones' popcorn flower	BW	1
44	Borag	Tiquilia palmeri	Palmer's coldenia	BW	FC
45	Borag	Tiquilia plicata	plicate coldenia	BW	10
46	Brass	Brassica tournefortii	*Sahara mustard	BW	50
47	Brass	Caulanthus lasiophyllus	California mustard	BW	iNat
48	Brass	Dithyrea californica	spectacle-pod	BW	iNat
49	Brass	Lepidium lasiocarpum ssp. lasiocarpum	hairy-podded pepper-grass	BW	20
50	Brass	Sisymbrium irio	*London rocket	BW	5
51	Brass	Streptanthella longirostris	longbeak streptanthella	BW	40
52	Cacta	Cylindropuntia echinocarpa	silver cholla	BW	50
53	Cacta	Cylindropuntia ganderi	Gander's cholla	BW	3
54	Cacta	Cylindropuntia ramosissima	pencil cholla	BW	55
55	Cacta	Ferocactus cylindraceus	California barrel cactus	BW	3
56	Cacta	Mammillaria tetrancistra	desert fish-hook cactus	BW	2
57	Cacta	Opuntia basilaris var. basilaris	beavertail cactus	BW	20
58	Campa	Nemacladus glanduliferus	glandular nemacladus	BW	3
59	Caryo	Achyronychia cooperi	frost mat	BW	50
60	Cheno	Atriplex canescens var. laciniata	Caleb four-wing saltbush	BW	FC
61	Cheno	Atriplex hymenelytra	desert holly	BW	99
62	Cheno	Atriplex polycarpa	cattle saltbush	BW	10
63	Cheno	Chenopodium murale	*nettle-leaved goosefoot	BW	4
64	Eupho	Chamaesyce melanadenia	red-gland spurge	BW	FC
65	Eupho	Chamaesyce micromera	Sonoran spurge	BW	3
66	Eupho	Chamaesyce polycarpa	small-seeded spurge	BW	50
67	Eupho	Chamaesyce setiloba	starfish (Yuma) spurge	BW	3
68	Eupho	Ditaxis lanceolata	narrowleaf ditaxis	BW	3
69	Eupho	Ditaxis neomexicana	New Mexico ditaxis	BW	5
70	Eupho	Ditaxis serrata var. californica	California ditaxis	BW	1
71	Eupho	Euphorbia eriantha	beetle spurge	BW	1
72	Fabac	Acmispon maritimus var. brevivexillus	short-bannered coastal lotus	BW	3
73	Fabac	Acmispon strigosus	strigose lotus	BW	50
74	Fabac	Dalea mollis	silky dalea	BW	11
75	Fabac	Dalea mollissima	downy dalea	BW	10
76	Fabac	Lupinus arizonicus	Arizona lupine	BW	99
77	Fabac	Psorothamnus emoryi	Emory's indigo-bush	BW	5
78	Fabac	Psorothamnus schottii	indigo bush	BW	99
79	Fabac	Psorothamnus spinosus	smoke tree	BW	99
80	Fabac	Senegalia greggii	catclaw	BW	99
81	Fouqu	Fouquieria splendens ssp. splendens	ocotillo	BW	99
82	Geran	Erodium texanum	Texas filaree	BW	99
83	Krame	Krameria bicolor	white rhatany	BW	25
84	Krame	Krameria erecta	Pima rhatany	BW	2
85	Lamia	Hyptis emoryi	desert-lavender	BW	60
86	Loasa	Mentzelia involucrata	bracted blazing star	BW	10
87	Loasa	Petalonyx thurberi ssp. thurberi	Thurber's sandpaper-plant	BW	1
88	Malva	Eremalche rotundifolia	desert five-spot	BW	6
89	Malva	Hibiscus denudatus	rock hibiscus	BW	4
90	Malva	Malva parviflora	*cheeseweed	BW	5
91	Monti	Calyptridium monandrum	sand cress	BW	2
92	Monti	Cistanthe ambigua	dead man's fingers	BW	iNat
93	Nycta	Abronia villosa var. villosa	hairy sand-verbena	BW	7
94	Nycta	Allionia incarnata var. incarnata	small-flowered trailing four o'clock	BW	25
95	Nycta	Boerhavia triquetra var. intermedia	fivewing spiderling	BW	1sp
96	Nycta	Mirabilis laevis var. retrorsa	Bigelow's desert four-o'clock	BW	30
97	Onagr	Chylismia cardiophylla ssp. cardiophylla	heartleaf suncup	BW	9
98	Onagr	Chylismia claviformis ssp. peirsonii	brown-eyed primrose	BW	99
99	Onagr	Eremothera boothii ssp. condensata	Booth's evening primrose	BW	35
100	Onagr	Eremothera chamaenerioides	long-fruit suncup	BW	iNat
101	Onagr	Eulobus californicus	California suncup	BW	99
102	Oroba	Orobanche cooperi	Cooper's broomrape	BW	iNat
103	Papav	Eschscholzia minutiflora ssp. minutiflora	small-flowered poppy	BW	1
104	Papav	Eschscholzia parishii	Parish's poppy	BW	99
105	Plant	Mohavea confertiflora	ghost flower	BW	7
106	Plant	Plantago ovata	desert plantain	BW	99
107	Polem	Aliciella latifolia ssp. latifolia	broad-leaf gilia	BW	68
108	Polem	Gilia stellata	star gilia	BW	10
109	Polem	Langloisia setosissima ssp. setosissima	bristly langloisia	BW	iNat
110	Polem	Loeseliastrum matthewsii	desert calico	BW	1sp
111	Polem	Loeseliastrum schottii	Schott's calico	BW	iNat
112	Polyg	Chorizanthe brevicornu var. brevicornu	brittle spineflower	BW	99
113	Polyg	Chorizanthe corrugata	wrinkled spineflower	BW	1
114	Polyg	Chorizanthe rigida	devil's spineflower	BW	25
115	Polyg	Eriogonum deflexum var. deflexum	flat-topped buckwheat	BW	FC
116	Polyg	Eriogonum inflatum	desert trumpet	BW	13
117	Polyg	Eriogonum thomasii	Thomas' buckwheat	BW	30
118	Polyg	Eriogonum trichopes	little desert trumpet	BW	iNat
119	Polyg	Pterostegia drymarioides	fairy bowties, threadstem	BW	iNat
120	Solan	Datura discolor	desert thornapple	BW	1
121	Solan	Lycium brevipes var. brevipes	desert boxthorn	BW	FC
122	Solan	Nicotiana obtusifolia	desert tobacco	BW	25
123	Solan	Physalis crassifolia	thick-leaved ground cherry	BW	2
124	Visca	Phoradendron californicum	desert mistletoe	BW	99
125	Zygop	Fagonia pachyacantha	sticky fagonia	BW	14
126	Zygop	Larrea tridentata	creosote bush	BW	99
Monocots
127	Agava	Agave deserti var. deserti	desert agave	BW	FC
128	Agava	Hesperocallis undulata	desert lily	BW	60
129	Poace	Aristida adscensionis	six-weeks three-awn	BW	99
130	Poace	Bouteloua aristidoides var. aristidoides	needle grama	BW	2
131	Poace	Bouteloua barbata var. barbata	six-weeks grama	BW	1
132	Poace	Hilaria rigida	big galleta	BW	50
133	Poace	Pennisetum setaceum	*fountain grass	BW	FC
134	Poace	Schismus barbatus	*Mediterranean schismus	BW	99

Go to:

Plants of Southern California: Regional Floras

Copyright © 2019-2020 by Tom Chester, Kate Harper, Walt Fidler, Carla Hoegen, Fred Melgert, Mike Crouse, Don Rideout, Joe Woods, Jim Roberts, Nancy Accola and Terry Hunefeld.
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/floras/truckhaven_rocks.html
Comments and feedback: Tom Chester
Last update: 2 January 2020