Forbs and Subshrubs
Nothoscordum texanum
Texas false garlic
Nuttallanthus texanus
Texas toadflax
Nymphaea mexicana
yellow waterlily
Nymphaea odorata
American white waterlily
Oenothera albicaulis
whitest evening primrose
Oenothera caespitosa
tufted evening primrose
Oenothera curtiflora
velvetweed
Oenothera elata
Hooker's evening primrose
Oenothera flava
yellow evening primrose
Oenothera hexandra
harlequinbush
Oenothera pallida
pale evening primrose
Oenothera parviflora
velvetweed
Oenothera primiveris
desert evening primrose
Oenothera pubescens
South American evening primrose
Oenothera speciosa
pinkladies
Oenothera villosa
hairy evening primrose
Oncosiphon piluliferum
stinknet
Onopordum acanthium
Scotch thistle
Orobanche cooperi
desert broomrape
Orobanche fasciculata
clustered broomrape
Orobanche ludoviciana
Louisiana broomrape
Orthocarpus luteus
yellow owl's clover
Orthocarpus purpureoalbus
purplewhite owl's clover
Oxalis albicans
radishroot woodsorrel
Oxalis alpina
Alpine woodsorrel
Oxalis caerulea
blue woodsorrel
Oxalis decaphylla
tenleaf woodsorrel
Oxalis pes-caprae
Bermuda buttercup
Oxytropis lambertii
purple locoweed
Packera hartiana
Hart's ragwort
Packera multilobata
lobeleaf groundsel
Packera quercetorum
Oak Creek ragwort
Parietaria hespera
rillita pellitory
Parietaria pensylvanica
Pennsylvania pellitory
Parthenium incanum
mariola
Pastinaca sativa
wild parsnip
Pectis angustifolia
lemonscent
Pectis cylindrica
Sonoran chinchweed
Pectis filipes
fivebract chinchweed
Pectis papposa
manybristle chinchweed
Pectis prostrata
spreading chinchweed
Pectis rusbyi
Rusby's chinchweed
Pectocarya heterocarpa
chuckwalla combseed
Pectocarya platycarpa
broadfruit combseed
Pectocarya setosa
moth combseed
Pedicularis centranthera
dwarf lousewort
Pediomelum megalanthum
Intermountain Indian breadroot
Pediomelum verdiense
Verde Formation breadroot
Pennellia longifolia
longleaf mock thelypody
Pennellia micrantha
mountain mock thelypody
Penstemon barbatus
beardlip penstemon
Penstemon breviculus
shortstem beardtongue
Penstemon eatonii
firecracker penstemon
Penstemon linarioides
toadflax penstemon
Penstemon nudiflorus
Flagstaff beardtongue
Penstemon ophianthus
coiled anther penstemon
Penstemon palmeri
Palmer's penstemon
Penstemon pseudospectabilis
desert penstemon
Penstemon rostriflorus
bridge penstemon
Penstemon subulatus
hackberry beardtongue
Penstemon thompsoniae
Thompson's beardtongue
Penstemon thurberi
Thurber's penstemon
Penstemon virgatus
upright blue beardtongue
Perityle ciliata
fringed rockdaisy
Perityle emoryi
Emory's rockdaisy
Petradoria pumila
rock goldenrod
Phacelia affinis
limestone phacelia
Phacelia alba
white phacelia, white scorpion weed
Phacelia bombycina
Mangas Spring phacelia
Phacelia coerulea
skyblue phacelia
Phacelia crenulata
cleftleaf wildheliotrope
Phacelia cryptantha
hiddenflower phacelia
Phacelia distans
distant phacelia
Phacelia egena
Kaweah River phacelia
Phacelia fremontii
Fremont's phacelia
Phacelia heterophylla
varileaf phacelia
Phacelia ivesiana
Ives' phacelia
Phacelia lemmonii
Lemmon's phacelia
Phacelia pedicellata
pedicellate phacelia
Phacelia rotundifolia
roundleaf phacelia
Phaseolus angustissimus
slimleaf bean
Phaseolus filiformis
slimjim bean
Phaseolus maculatus
spotted bean
Phemeranthus aurantiacus
orange fameflower
Phemeranthus confertiflorus
New Mexico fameflower
Phemeranthus parviflorus
sunbright
Phemeranthus validulus
Tusayan fameflower
Phlox amabilis
Arizona phlox
Phlox austromontana
mountain phlox
Phlox longifolia
longleaf phlox
Phlox speciosa
showy phlox
Phlox tenuifolia
Santa Catalina Mountain phlox
Phyla cuneifolia
wedgeleaf
Physalis acutifolia
sharpleaf groundcherry
Physalis crassifolia
yellow nightshade groundcherry
Physalis hederifolia
ivyleaf groundcherry
Physalis heterophylla
clammy groundcherry
Physalis pubescens
husk tomato
Phytolacca americana
American pokeweed
Plagiobothrys arizonicus
Arizona popcornflower