Grand Canyon Flora: Upper Bright Angel Trail

Grand Canyon Flora: Upper Bright Angel Trail

Introduction
Notes On Some Problematic Taxa
Checklist

Introduction

This page presents a family-order flora for the species found in the Plant Guide to Bright Angel Trail. See that webpage for an introduction to this page.
Notes On Some Problematic Taxa

Two genera with species that are difficult to properly determine have multiple species each claimed to be on this trail. There may or may not actually be multiple species in each of those three genera on this trail. More work is needed to find out how many species actually are on this trail.
Two Echinocereus species have been claimed to be on this trail: E. bakeri and E. triglochidiatus var. mojavensis. Only E. triglochidiatus is listed in the checklist below, but E. bakeri might be present here as well. These two species can only be distinguished when flowering.
Six Opuntia species have been claimed to be on this trail: Opuntia basilaris var. longiareolata; Opuntia engelmannii var. engelmannii; Opuntia macrorhiza; Opuntia phaeacantha; Opuntia polyacantha var. erinacea; and Opuntia woodsii. All but O. macrorhiza and O. woodsii are listed in the checklist below; the other two might be present here as well.
There was a third genera with three species claimed to be on this trail, Argemone. However, a review of the iNat pix for those observations showed that they were all A. arizonica, which is apparently the only Argemone species on this trail.
Checklist

The checklist is in the traditional order of lycopods; ferns; conifers; dicots; and monocots. The scientific names are consistent with those used by iNaturalist as of 12 September 2021. Scientific names have been changing furiously in the last several years at iNat, so some names may have been updated since 12 September 2021. Fortunately, iNat retains knowledge of previous names, so you can still search for an older name there.
The column Famil gives the first five letters in the family name.
The column ID indicates whether there is uncertainty about the species determination. A "~" in this column indicates it is a probable determination. A "?" in this column indicates the species given is just a guess.
The Scientific Name is linked to the SEINet page on each taxon. The SEINet pages usually contain abundant photographs of each taxon, along with a description of it. Note that some links will go to a page with a different Scientific Name that is synonymous with the name given here.
An asterisk before the common name indicates a non-native species.
The column Mile gives the mileage from the South Rim Trailhead of the first occurrence of each species on the Trail. Some species only from iNat or Vouchers have uncertain locations, and may not have an entry in this column. Species with "IG" in this column are found off-trail at Indian Gardens. Two species with "Lori" in this column are from a list of plants on the Bright Angel Trail supplied by Lori Makarick, and have not yet been found by us.
The column #Pl/Loc gives estimates of the minimum abundance for each species, up to a maximum of 99 plants, for those species we have observed on each trail, along with a rough estimate of the number of locations along the trail, up to a maximum of 9 locations. Species found only off-trail, and those species for which we have not made an abundance estimate so far in a given plant trail guide, may have arbitrarily been given a minimum number of one, or left blank. Species found only at iNat, or only from Vouchers, have "iN" or "V" in this column.
Two taxa given in the Plant Trail Guide are not listed below since they have not been determined to the genus. Thus this checklist has 189 taxa, whereas the Plant Trail Guide has 191.
Version for printing, without lines and other text on this page: html (5 pages), or pdf Clickbook booklet (2 double-sided pages), or condensed pdf Clickbook booklet (1 double-sided page made by stripping clade headers). (See printing instructions for an explanation of these options)

# Famil ID Scientific Name
Link goes to SEINet (*)Common Name Mile #Pl/Loc
Lycopods
1 Selag Selaginella mutica spike-moss 1.81 1/1
Ferns
2 Pteri Myriopteris gracilis slender lipfern - 2/1
Gymnosperms
3 Cupre Juniperus osteosperma Utah juniper 0 20/9
4 Ephed Ephedra viridis green ephedra 0.34 50/9
5 Pinac Pinus edulis two-needle pinyon pine 0 50/9
6 Pinac Pinus ponderosa ponderosa pine 0.13 /
7 Pinac Pseudotsuga menziesii var. glauca Rocky Mountain Douglas fir 0.38 10/3
Eudicots
8 Amara Amaranthus albus *tumble pigweed 0.02 5/2
9 Amara Amaranthus powellii Powell's amaranth 0 20/2
10 Amara Atriplex canescens fourwing saltbush 3.73 5/1
11 Amara Atriplex rosea *tumbling oracle 0.02 40/2
12 Amara Chenopodium fremontii Fremont's goosefoot 0.08 20/5
13 Amara Salsola tragus *Russian thistle 0.01 20/3
14 Anaca Rhus aromatica skunkbush 1.17 20/6
15 Apiac Yabea microcarpa California hedge-parsley 3.46 2/1
16 Apocy Asclepias subverticillata poison milkweed 3.61 1/1
17 Aster Acourtia wrightii brownfoot 3.46 2/2
18 Aster Ageratina herbacea fragrant snakeroot 0.2 30/5
19 Aster Artemisia bigelovii Bigelow sagebrush 1.77 iN/2
20 Aster Artemisia ludoviciana silver wormwood 0.05 99/9
21 Aster Artemisia nova black sagebrush 0.23 x/1
22 Aster Artemisia tridentata big sagebrush 0.15 30/9
23 Aster Baccharis salicifolia mule fat IG iN/1
24 Aster Baccharis sarothroides broom baccharis 4.6 iN/1
25 Aster Brickellia californica California brickellbush 0.04 99/9
26 Aster Brickellia longifolia longleaf brickellbush 1.71 99/9
27 Aster Chaetopappa ericoides rose heath 0.44 20/6
28 Aster Cirsium arizonicum Arizona thistle 0.05 30/9
29 Aster Dieteria canescens hoary-aster 0 50/9
30 Aster Encelia resinifera resin brittlebush 3.28 30/7
31 Aster Ericameria arizonica Grand Canyon Goldenweed 0.12 20/8
32 Aster Ericameria nauseosa var. graveolens pungent rabbitbrush 0.14 1/1
33 Aster Ericameria nauseosa var. juncea rush rabbitbrush 3.61 40/9
34 Aster Ericameria nauseosa var. oreophila threadleaf common rabbitbrush 0 50/9
35 Aster Erigeron concinnus tidy fleabane 1.57 50/9
36 Aster Erigeron flagellaris trailing fleabane 0.58 30/9
37 Aster Erigeron utahensis Utah fleabane 1.97 iN/1
38 Aster Eurybia glauca pulchra beautiful aster 0.09 99/9
39 Aster Gutierrezia microcephala sticky snakeweed 0.39 30/9
40 Aster Gutierrezia sarothrae matchweed 0.02 5/2
41 Aster ~ Helianthus petiolaris prairie sunflower 0.02 1/1
42 Aster Hymenoxys cooperi Cooper’s rubberweed 0.27 5/2
43 Aster Iva frutescens bigleaf marsh-elder IG V/
44 Aster Packera multilobata Basin butterweed 0.36 3/2
45 Aster Perityle congesta Grand Canyon rock-daisy 0.09 50/9
46 Aster Psilostrophe sparsiflora greenstem paperflower 1.95 5/2
47 Aster Solidago velutina velvety goldenrod 5/2
48 Aster Stephanomeria pauciflora wire-lettuce 3.3 /
49 Aster Uropappus lindleyi silver puffs 3.75 1/1
50 Aster Xanthisma gracile yellow spiny daisy 0.36 x/1
51 Aster Xylorhiza tortifolia Mojave woodyaster 2.77 20/9
52 Berbe Berberis fremontii Fremont barberry 0.39 10/9
53 Berbe Berberis repens creeping barberry 0.1 20/5
54 Betul Ostrya knowltonii Knowlton hop hornbeam 0.86 30/9
55 Borag ~ Cryptantha gracilis slender cryptantha 0.37 20/3
56 Borag Cryptantha pterocarya wing-nut cryptantha 3.75 x/
57 Borag Lappula occidentalis var. occidentalis flatspine stickseed 0.16 30/9
58 Borag Phacelia filiformis narrow phacelia 1.95 20/3
59 Borag Phacelia laxiflora nodding scorpionflower 3.59 iN/1
60 Brass Alyssum simplex *wild alyssum 0.8 iN/1
61 Brass Boechera perennans perennial rock-cress 0 40/9
62 Brass Capsella bursa-pastoris shepherd's purse 0.23 10/3
63 Brass Chorispora tenella *crossflower 0 99/9
64 Brass Descurainia sophia *herb sophia 0 99/9
65 Brass Erysimum capitatum var. purshii wallflower 0.26 5/3
66 Brass Lepidium densiflorum common pepper-grass 0 5/1
67 Brass Lepidium draba whitetop (removed by GC) 2.42 20/1
68 Brass Lepidium lasiocarpum var. lasiocarpum hairy-podded pepper-grass 2.5 20/5
69 Brass Lepidium montanum mountain pepper-grass - 7/2
70 Brass Lepidium perfoliatum *Klamath pepper-grass 0.04 99/9
71 Brass Nasturtium officinale water cress 4.66 iN/
72 Brass Noccaea fendleri wild candytuft 0.58 8/3
73 Brass Physaria purpurea rose bladderpod 3.12 30/7
74 Brass Sisymbrium irio *London rocket 0.06 10/3
75 Brass Thelypodium wrightii Wright's thelypody 0 10/3
76 Cacta Echinocereus triglochidiatus claret cup 0.54 /
77 Cacta Opuntia basilaris var. longiareolata Grand Canyon beavertail 3.62 iN/1
78 Cacta Opuntia engelmannii var. engelmannii Engelmann prickly-pear 2.69 iN/4
79 Cacta Opuntia phaeacantha desert prickly-pear 0.44 5/5
80 Cacta Opuntia polyacantha var. erinacea Mojave prickly-pear 1.6 3/3
81 Canna Celtis reticulata netleaf hackberry 3.07 1/1
82 Capri ~ Sambucus cerulea blue elderberry 0.6 1/1
83 Capri Symphoricarpos rotundifolius snowberry 0 99/9
84 Cross Glossopetalon spinescens var. aridum spiny greasebush 0.8 20/9
85 Eupho Bernardia incana western bernardia - 4/3
86 Fabac Astragalus calycosus Torrey's milkvetch 2.9 10/1
87 Fabac Astragalus lentiginosus var. diphysus freckled milk-vetch 0.39 1/1
88 Fabac Cercis orbiculata western redbud 1.58 3/3
89 Fabac Lathyrus brachycalyx ssp. zionis bush peavine 2.91 2/1
90 Fabac Medicago sativa alfalfa 0.22 1/1
91 Fabac Senegalia greggii catclaw 4.02 50/3
92 Fagac Quercus gambelii Gambel oak 0 50/9
93 Fagac Quercus turbinella shrub live oak 2.64 10/2
94 Gross Ribes cereum var. pedicellare whisky currant 0 99/9
95 Gross Ribes leptanthum trumpet gooseberry 1.12 50/9
96 Gross Ribes velutinum desert gooseberry 0 99/9
97 Hydra Fendlera rupicola Fendler bush 0.51 40/9
98 Hydra Fendlerella utahensis Utah fendlerbush 0.25 1/1
99 Lamia Hedeoma drummondii Drummond's false pennyroyal 0.3 1/1
100 Lamia Marrubium vulgare *horehound 0.02 20/5
101 Lamia Nepeta cataria *catnip 0.05 20/3
102 Malva Malva neglecta *common mallow 0 10/2
103 Malva Sphaeralcea grossulariifolia gooseberryleaf globemallow 1.51 50/9
104 Malva Sphaeralcea parvifolia littleleaf globe mallow 0.02 30/9
105 Monti Claytonia parviflora ssp. utahensis narrow-leaved miner's lettuce 1.27 99/9
106 Nycta ~ Mirabilis linearis narrow-leaf four o'clock 0.61 2/1
107 Nycta Mirabilis multiflora giant four o'clock 2.03 20/5
108 Nycta Mirabilis oxybaphoides smooth spreading four o'clock 0 50/9
109 Oleac Fraxinus anomala single-leaf ash 1.93 10/5
110 Oleac Fraxinus cuspidata fragrant ash 1.47 30/9
111 Onagr Chylismia multijuga froststem suncup IG V/
112 Papav Argemone arizonica Arizona prickly poppy 1.46 6/2
113 Papav Corydalis aurea scrambled eggs 0.63 5/2
114 Plant Castilleja chromosa Martin's paintbrush 0.39 3/1
115 Plant Maurandya antirrhiniflora snapdragon vine 3.19 3/2
116 Plant Penstemon eatonii ssp. undosus Eaton's penstemon 0.59 20/9
117 Plant Penstemon palmeri Palmer's penstemon 0.05 10/2
118 Plant Penstemon rostriflorus beaked penstemon 0.16 10/5
119 Plant Penstemon utahensis Utah penstemon 1.95 20/7
120 Plant Plantago patagonica Patagonia plantain 3.61 10/1
121 Plant Verbascum thapsus common mullein 1.64 2/1
122 Polem Gilia ophthalmoides eyed gilia 1.95 2/2
123 Polem Phlox austromontana southern mountain phlox 0.64 10/5
124 Polem Phlox longifolia longleaf phlox 3.51 30/9
125 Polyg Eriogonum inflatum desert trumpet 3.72 10/1
126 Polyg Eriogonum microthecum var. simpsonii Simpson's buckwheat 0.33 50/9
127 Polyg sp Eriogonum sp. Buckwheat with terminal infl 3.74 x/
128 Polyg Polygonum arenastrum *knotweed 0 5/2
129 Polyg ~ Rumex crispus curly dock 0.72 1/1
130 Ranun Ceratocephala testiculata *curveseed butterwort 0 99/9
131 Ranun Clematis ligusticifolia virgin's bower 0.98 5/2
132 Ranun Delphinium scaposum barestem larkspur 1.33 10/5
133 Ranun Thalictrum fendleri Fendler's meadow-rue 0.16 55/9
134 Rhamn Frangula obovata birchleaf buckthorn 0.98 2/2
135 Rosac Amelanchier utahensis Utah service-berry 0 99/9
136 Rosac Chamaebatiaria millefolium fern bush 0.03 20/9
137 Rosac Coleogyne ramosissima black brush 2.43 50/3
138 Rosac Fallugia paradoxa Apache plume 3.72 5/2
139 Rosac Holodiscus dumosus shrubby cream bush 0.54 10/3
140 Rosac Ivesia arizonica arizonica rock whitefeather 0.25 40/2
141 Rosac Petrophytum caespitosum rock spiraea 3.19 50/2
142 Rosac Purshia stansburyana cliffrose 0.36 20/9
143 Rubia Galium aparine common bedstraw 3.46 1/1
144 Rubia Galium munzii ssp. ambivalens Munz's bedstraw 0.3 40/9
145 Rubia Galium wrightii Wright's bedstraw 0.17 2/2
146 Rutac Ptelea trifoliata ssp. pallida pallid hoptree 0.21 50/9
147 Rutac Thamnosma montana turpentine broom 3.51 13/3
148 Salic Populus fremontii Fremont cottonwood 4.59 iN/
149 Salic Salix exigua narrowleaf willow 4.66 iN/
150 Santa Arceuthobium divaricatum pinyon pine dwarf-mistletoe 0 2/2
151 Saxif Heuchera rubescens coral bells 0.3 7/4
152 Solan Datura wrightii sacred datura 2.74 iN/2
153 Solan Solanum elaeagnifolium silverleaf nightshade 4.62 iN/3
154 Vitac Parthenocissus inserta Virginia creeper 0.05 1/1
155 Vitac Vitis arizonica Canyon wild grape 4.59 iN/
Monocots
156 Amary ~ Allium bisceptrum var. palmeri Aspen onion 0.3 5/1
157 Aspar Agave utahensis var. kaibabensis Kaibab century plant 2.42 1/1
158 Aspar Nolina microcarpa sacahuista 4.56 3/1
159 Aspar Yucca baccata banana yucca 0.43 45/9
160 Cyper Carex alma sturdy sedge IG V/
161 Cyper Schoenoplectus americanus American tule IG iN/1
162 Lilia Calochortus flexuosus winding mariposa 3.61 10/2
163 Poace Aristida purpurea var. longiseta red three-awn 3.61 10/2
164 Poace Bouteloua curtipendula side-oats grama 3.52 50/9
165 Poace Bouteloua gracilis blue grama 4.1 30/3
166 Poace Bromus diandrus *ripgut brome 2.04 30/9
167 Poace Bromus inermis *smooth brome 0.41 99/9
168 Poace Bromus japonicus *Japanese chess IG iN/1
169 Poace Bromus richardsonii fringed brome 0.55 /
170 Poace Bromus rubens *red brome 2 10/1
171 Poace Bromus tectorum *downy brome 0 99/9
172 Poace Cynodon dactylon *Bermuda grass 0.36 5/1
173 Poace Elymus elymoides squirreltail 0.05 30/9
174 Poace ? Elymus smithii western wheatgrass 1.42 3/1
175 Poace Elymus trachycaulus slender wheatgrass 0.05 50/9
176 Poace ~ Eriocoma arida Mormon needlegrass 1.99 20/5
177 Poace Eriocoma hymenoides Indian ricegrass 0.33 40/9
178 Poace ~ Eriocoma parishii Parish needlegrass 2.18 20/9
179 Poace Hesperostipa comata needle & thread grass 3.01 10/2
180 Poace Hilaria jamesii James' galleta 1.95 1/1
181 Poace Hordeum jubatum squirreltail barley 1.58 iN/1
182 Poace Hordeum murinum *foxtail barley 0.03 99/9
183 Poace Lolium arundinaceum *tall fescue IG V/
184 Poace Muhlenbergia porteri bush muhly 2.05 10/2
185 Poace Pappostipa speciosa desert needlegrass 2.45 iN/1
186 Poace Phragmites australis common reed 4.59 iN/
187 Poace Poa annua *annual blue grass 0.26 1/1
188 Poace Poa fendleriana mutton grass 0.09 99/9
189 Poace Sporobolus cryptandrus sand dropseed 0.41 10/1

Acknowledgments

We thank all the many people who went to the time and trouble to collect vouchers for this area, so that the species list here could be compiled. That species list from the vouchers was an immense help in getting species determinations from our surveys. We specifically thank Wendy Hodgson and Glenn Rink for their voucher collection efforts, and for their direct help in getting correct determinations for some of the species we observed.
We thank Lori Makarick, the Vegetation Program Manager at Grand Canyon National Park, for creating and maintaining a spreadsheet of all the species in Grand Canyon National Park. That spreadsheet was instrumental for this project.
We thank Don Rideout for help with the field work on 26 and 27 September 2022.

#	Famil	ID	Scientific Name Link goes to SEINet	(*)Common Name	Mile	#Pl/Loc
Lycopods
1	Selag		Selaginella mutica	spike-moss	1.81	1/1
Ferns
2	Pteri		Myriopteris gracilis	slender lipfern	-	2/1
Gymnosperms
3	Cupre		Juniperus osteosperma	Utah juniper	0	20/9
4	Ephed		Ephedra viridis	green ephedra	0.34	50/9
5	Pinac		Pinus edulis	two-needle pinyon pine	0	50/9
6	Pinac		Pinus ponderosa	ponderosa pine	0.13	/
7	Pinac		Pseudotsuga menziesii var. glauca	Rocky Mountain Douglas fir	0.38	10/3
Eudicots
8	Amara		Amaranthus albus	*tumble pigweed	0.02	5/2
9	Amara		Amaranthus powellii	Powell's amaranth	0	20/2
10	Amara		Atriplex canescens	fourwing saltbush	3.73	5/1
11	Amara		Atriplex rosea	*tumbling oracle	0.02	40/2
12	Amara		Chenopodium fremontii	Fremont's goosefoot	0.08	20/5
13	Amara		Salsola tragus	*Russian thistle	0.01	20/3
14	Anaca		Rhus aromatica	skunkbush	1.17	20/6
15	Apiac		Yabea microcarpa	California hedge-parsley	3.46	2/1
16	Apocy		Asclepias subverticillata	poison milkweed	3.61	1/1
17	Aster		Acourtia wrightii	brownfoot	3.46	2/2
18	Aster		Ageratina herbacea	fragrant snakeroot	0.2	30/5
19	Aster		Artemisia bigelovii	Bigelow sagebrush	1.77	iN/2
20	Aster		Artemisia ludoviciana	silver wormwood	0.05	99/9
21	Aster		Artemisia nova	black sagebrush	0.23	x/1
22	Aster		Artemisia tridentata	big sagebrush	0.15	30/9
23	Aster		Baccharis salicifolia	mule fat	IG	iN/1
24	Aster		Baccharis sarothroides	broom baccharis	4.6	iN/1
25	Aster		Brickellia californica	California brickellbush	0.04	99/9
26	Aster		Brickellia longifolia	longleaf brickellbush	1.71	99/9
27	Aster		Chaetopappa ericoides	rose heath	0.44	20/6
28	Aster		Cirsium arizonicum	Arizona thistle	0.05	30/9
29	Aster		Dieteria canescens	hoary-aster	0	50/9
30	Aster		Encelia resinifera	resin brittlebush	3.28	30/7
31	Aster		Ericameria arizonica	Grand Canyon Goldenweed	0.12	20/8
32	Aster		Ericameria nauseosa var. graveolens	pungent rabbitbrush	0.14	1/1
33	Aster		Ericameria nauseosa var. juncea	rush rabbitbrush	3.61	40/9
34	Aster		Ericameria nauseosa var. oreophila	threadleaf common rabbitbrush	0	50/9
35	Aster		Erigeron concinnus	tidy fleabane	1.57	50/9
36	Aster		Erigeron flagellaris	trailing fleabane	0.58	30/9
37	Aster		Erigeron utahensis	Utah fleabane	1.97	iN/1
38	Aster		Eurybia glauca pulchra	beautiful aster	0.09	99/9
39	Aster		Gutierrezia microcephala	sticky snakeweed	0.39	30/9
40	Aster		Gutierrezia sarothrae	matchweed	0.02	5/2
41	Aster	~	Helianthus petiolaris	prairie sunflower	0.02	1/1
42	Aster		Hymenoxys cooperi	Cooper’s rubberweed	0.27	5/2
43	Aster		Iva frutescens	bigleaf marsh-elder	IG	V/
44	Aster		Packera multilobata	Basin butterweed	0.36	3/2
45	Aster		Perityle congesta	Grand Canyon rock-daisy	0.09	50/9
46	Aster		Psilostrophe sparsiflora	greenstem paperflower	1.95	5/2
47	Aster		Solidago velutina	velvety goldenrod		5/2
48	Aster		Stephanomeria pauciflora	wire-lettuce	3.3	/
49	Aster		Uropappus lindleyi	silver puffs	3.75	1/1
50	Aster		Xanthisma gracile	yellow spiny daisy	0.36	x/1
51	Aster		Xylorhiza tortifolia	Mojave woodyaster	2.77	20/9
52	Berbe		Berberis fremontii	Fremont barberry	0.39	10/9
53	Berbe		Berberis repens	creeping barberry	0.1	20/5
54	Betul		Ostrya knowltonii	Knowlton hop hornbeam	0.86	30/9
55	Borag	~	Cryptantha gracilis	slender cryptantha	0.37	20/3
56	Borag		Cryptantha pterocarya	wing-nut cryptantha	3.75	x/
57	Borag		Lappula occidentalis var. occidentalis	flatspine stickseed	0.16	30/9
58	Borag		Phacelia filiformis	narrow phacelia	1.95	20/3
59	Borag		Phacelia laxiflora	nodding scorpionflower	3.59	iN/1
60	Brass		Alyssum simplex	*wild alyssum	0.8	iN/1
61	Brass		Boechera perennans	perennial rock-cress	0	40/9
62	Brass		Capsella bursa-pastoris	shepherd's purse	0.23	10/3
63	Brass		Chorispora tenella	*crossflower	0	99/9
64	Brass		Descurainia sophia	*herb sophia	0	99/9
65	Brass		Erysimum capitatum var. purshii	wallflower	0.26	5/3
66	Brass		Lepidium densiflorum	common pepper-grass	0	5/1
67	Brass		Lepidium draba	whitetop (removed by GC)	2.42	20/1
68	Brass		Lepidium lasiocarpum var. lasiocarpum	hairy-podded pepper-grass	2.5	20/5
69	Brass		Lepidium montanum	mountain pepper-grass	-	7/2
70	Brass		Lepidium perfoliatum	*Klamath pepper-grass	0.04	99/9
71	Brass		Nasturtium officinale	water cress	4.66	iN/
72	Brass		Noccaea fendleri	wild candytuft	0.58	8/3
73	Brass		Physaria purpurea	rose bladderpod	3.12	30/7
74	Brass		Sisymbrium irio	*London rocket	0.06	10/3
75	Brass		Thelypodium wrightii	Wright's thelypody	0	10/3
76	Cacta		Echinocereus triglochidiatus	claret cup	0.54	/
77	Cacta		Opuntia basilaris var. longiareolata	Grand Canyon beavertail	3.62	iN/1
78	Cacta		Opuntia engelmannii var. engelmannii	Engelmann prickly-pear	2.69	iN/4
79	Cacta		Opuntia phaeacantha	desert prickly-pear	0.44	5/5
80	Cacta		Opuntia polyacantha var. erinacea	Mojave prickly-pear	1.6	3/3
81	Canna		Celtis reticulata	netleaf hackberry	3.07	1/1
82	Capri	~	Sambucus cerulea	blue elderberry	0.6	1/1
83	Capri		Symphoricarpos rotundifolius	snowberry	0	99/9
84	Cross		Glossopetalon spinescens var. aridum	spiny greasebush	0.8	20/9
85	Eupho		Bernardia incana	western bernardia	-	4/3
86	Fabac		Astragalus calycosus	Torrey's milkvetch	2.9	10/1
87	Fabac		Astragalus lentiginosus var. diphysus	freckled milk-vetch	0.39	1/1
88	Fabac		Cercis orbiculata	western redbud	1.58	3/3
89	Fabac		Lathyrus brachycalyx ssp. zionis	bush peavine	2.91	2/1
90	Fabac		Medicago sativa	alfalfa	0.22	1/1
91	Fabac		Senegalia greggii	catclaw	4.02	50/3
92	Fagac		Quercus gambelii	Gambel oak	0	50/9
93	Fagac		Quercus turbinella	shrub live oak	2.64	10/2
94	Gross		Ribes cereum var. pedicellare	whisky currant	0	99/9
95	Gross		Ribes leptanthum	trumpet gooseberry	1.12	50/9
96	Gross		Ribes velutinum	desert gooseberry	0	99/9
97	Hydra		Fendlera rupicola	Fendler bush	0.51	40/9
98	Hydra		Fendlerella utahensis	Utah fendlerbush	0.25	1/1
99	Lamia		Hedeoma drummondii	Drummond's false pennyroyal	0.3	1/1
100	Lamia		Marrubium vulgare	*horehound	0.02	20/5
101	Lamia		Nepeta cataria	*catnip	0.05	20/3
102	Malva		Malva neglecta	*common mallow	0	10/2
103	Malva		Sphaeralcea grossulariifolia	gooseberryleaf globemallow	1.51	50/9
104	Malva		Sphaeralcea parvifolia	littleleaf globe mallow	0.02	30/9
105	Monti		Claytonia parviflora ssp. utahensis	narrow-leaved miner's lettuce	1.27	99/9
106	Nycta	~	Mirabilis linearis	narrow-leaf four o'clock	0.61	2/1
107	Nycta		Mirabilis multiflora	giant four o'clock	2.03	20/5
108	Nycta		Mirabilis oxybaphoides	smooth spreading four o'clock	0	50/9
109	Oleac		Fraxinus anomala	single-leaf ash	1.93	10/5
110	Oleac		Fraxinus cuspidata	fragrant ash	1.47	30/9
111	Onagr		Chylismia multijuga	froststem suncup	IG	V/
112	Papav		Argemone arizonica	Arizona prickly poppy	1.46	6/2
113	Papav		Corydalis aurea	scrambled eggs	0.63	5/2
114	Plant		Castilleja chromosa	Martin's paintbrush	0.39	3/1
115	Plant		Maurandya antirrhiniflora	snapdragon vine	3.19	3/2
116	Plant		Penstemon eatonii ssp. undosus	Eaton's penstemon	0.59	20/9
117	Plant		Penstemon palmeri	Palmer's penstemon	0.05	10/2
118	Plant		Penstemon rostriflorus	beaked penstemon	0.16	10/5
119	Plant		Penstemon utahensis	Utah penstemon	1.95	20/7
120	Plant		Plantago patagonica	Patagonia plantain	3.61	10/1
121	Plant		Verbascum thapsus	common mullein	1.64	2/1
122	Polem		Gilia ophthalmoides	eyed gilia	1.95	2/2
123	Polem		Phlox austromontana	southern mountain phlox	0.64	10/5
124	Polem		Phlox longifolia	longleaf phlox	3.51	30/9
125	Polyg		Eriogonum inflatum	desert trumpet	3.72	10/1
126	Polyg		Eriogonum microthecum var. simpsonii	Simpson's buckwheat	0.33	50/9
127	Polyg	sp	Eriogonum sp.	Buckwheat with terminal infl	3.74	x/
128	Polyg		Polygonum arenastrum	*knotweed	0	5/2
129	Polyg	~	Rumex crispus	curly dock	0.72	1/1
130	Ranun		Ceratocephala testiculata	*curveseed butterwort	0	99/9
131	Ranun		Clematis ligusticifolia	virgin's bower	0.98	5/2
132	Ranun		Delphinium scaposum	barestem larkspur	1.33	10/5
133	Ranun		Thalictrum fendleri	Fendler's meadow-rue	0.16	55/9
134	Rhamn		Frangula obovata	birchleaf buckthorn	0.98	2/2
135	Rosac		Amelanchier utahensis	Utah service-berry	0	99/9
136	Rosac		Chamaebatiaria millefolium	fern bush	0.03	20/9
137	Rosac		Coleogyne ramosissima	black brush	2.43	50/3
138	Rosac		Fallugia paradoxa	Apache plume	3.72	5/2
139	Rosac		Holodiscus dumosus	shrubby cream bush	0.54	10/3
140	Rosac		Ivesia arizonica arizonica	rock whitefeather	0.25	40/2
141	Rosac		Petrophytum caespitosum	rock spiraea	3.19	50/2
142	Rosac		Purshia stansburyana	cliffrose	0.36	20/9
143	Rubia		Galium aparine	common bedstraw	3.46	1/1
144	Rubia		Galium munzii ssp. ambivalens	Munz's bedstraw	0.3	40/9
145	Rubia		Galium wrightii	Wright's bedstraw	0.17	2/2
146	Rutac		Ptelea trifoliata ssp. pallida	pallid hoptree	0.21	50/9
147	Rutac		Thamnosma montana	turpentine broom	3.51	13/3
148	Salic		Populus fremontii	Fremont cottonwood	4.59	iN/
149	Salic		Salix exigua	narrowleaf willow	4.66	iN/
150	Santa		Arceuthobium divaricatum	pinyon pine dwarf-mistletoe	0	2/2
151	Saxif		Heuchera rubescens	coral bells	0.3	7/4
152	Solan		Datura wrightii	sacred datura	2.74	iN/2
153	Solan		Solanum elaeagnifolium	silverleaf nightshade	4.62	iN/3
154	Vitac		Parthenocissus inserta	Virginia creeper	0.05	1/1
155	Vitac		Vitis arizonica	Canyon wild grape	4.59	iN/
Monocots
156	Amary	~	Allium bisceptrum var. palmeri	Aspen onion	0.3	5/1
157	Aspar		Agave utahensis var. kaibabensis	Kaibab century plant	2.42	1/1
158	Aspar		Nolina microcarpa	sacahuista	4.56	3/1
159	Aspar		Yucca baccata	banana yucca	0.43	45/9
160	Cyper		Carex alma	sturdy sedge	IG	V/
161	Cyper		Schoenoplectus americanus	American tule	IG	iN/1
162	Lilia		Calochortus flexuosus	winding mariposa	3.61	10/2
163	Poace		Aristida purpurea var. longiseta	red three-awn	3.61	10/2
164	Poace		Bouteloua curtipendula	side-oats grama	3.52	50/9
165	Poace		Bouteloua gracilis	blue grama	4.1	30/3
166	Poace		Bromus diandrus	*ripgut brome	2.04	30/9
167	Poace		Bromus inermis	*smooth brome	0.41	99/9
168	Poace		Bromus japonicus	*Japanese chess	IG	iN/1
169	Poace		Bromus richardsonii	fringed brome	0.55	/
170	Poace		Bromus rubens	*red brome	2	10/1
171	Poace		Bromus tectorum	*downy brome	0	99/9
172	Poace		Cynodon dactylon	*Bermuda grass	0.36	5/1
173	Poace		Elymus elymoides	squirreltail	0.05	30/9
174	Poace	?	Elymus smithii	western wheatgrass	1.42	3/1
175	Poace		Elymus trachycaulus	slender wheatgrass	0.05	50/9
176	Poace	~	Eriocoma arida	Mormon needlegrass	1.99	20/5
177	Poace		Eriocoma hymenoides	Indian ricegrass	0.33	40/9
178	Poace	~	Eriocoma parishii	Parish needlegrass	2.18	20/9
179	Poace		Hesperostipa comata	needle & thread grass	3.01	10/2
180	Poace		Hilaria jamesii	James' galleta	1.95	1/1
181	Poace		Hordeum jubatum	squirreltail barley	1.58	iN/1
182	Poace		Hordeum murinum	*foxtail barley	0.03	99/9
183	Poace		Lolium arundinaceum	*tall fescue	IG	V/
184	Poace		Muhlenbergia porteri	bush muhly	2.05	10/2
185	Poace		Pappostipa speciosa	desert needlegrass	2.45	iN/1
186	Poace		Phragmites australis	common reed	4.59	iN/
187	Poace		Poa annua	*annual blue grass	0.26	1/1
188	Poace		Poa fendleriana	mutton grass	0.09	99/9
189	Poace		Sporobolus cryptandrus	sand dropseed	0.41	10/1

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Native and Introduced Plants of the Grand Canyon, Arizona

Copyright © 2019-2022 by Tom Chester, Anne Kelly, Arnie Peterson, Ash Bedford, Dave Stith, Kate Watters, Lauren Berutich and Brendon Crill.
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/gc/plants/flora/ba_flora.html
Comments and feedback: Tom Chester
Last Update: 10 September 2022