| Symbols |
Scientific
name |
Common
name |
Where
found |
| Aceraceae
- Maple Family |
| NPT |
Acer
glabrum Torr. |
Rocky
Mountain maple |
ravines
on butte |
| IPT |
Acer
negundo L. |
Box
Elder |
cultivated
areas and along Little Lost River |
| Alismataceae
- Water Plantain Family |
| NPF |
Alisma
gramineum Lej. |
Water
Plaintain |
Big
Lost River Sinks |
| Amaranthaceae
- Amaranth Family |
| NAF |
Amaranthus
albus L. |
White
pigweed |
common,
widespread in disturbed areas |
| NAF |
Amaranthus
blitoides S. Wats. |
Prostrate
pigweed |
common,
widespread in disturbed areas |
| NAF |
Amaranthus
californicus (Moq.) Wats. |
California
amaranth |
Big
Southern Butte, disturbed areas around vernal
pools, alkaline flats, Spreading Area |
| NAF |
Amaranthus
graecizans L. |
Prostrate
pigweed, Tumbleweed amaranth |
(see
A. blitoides) |
| NAF |
Amaranthus
retrofexus L. |
Redroot |
Central
Facilities Area, cultivated areas |
| Anacardiaceae
- Sumac Family |
| NPS |
Rhus
trilobata Nutt. |
Squawbush,
Skunkbush |
Big
Lost River, buttes |
| Apiaceae
(Umbelliferea) - Parsley Family |
| NPF |
Cymopterus
acaulis (Pursh) Raf. |
Biscuit-root |
west
foothills, northeast sand dunes |
| NPF |
Cymopterus
bipinnatus Wats. |
Hayden's
cymopterus |
(see.
C. nivalis) |
| NPF |
Cymopterus
nivalis S. Wats. |
Hayden's
cymopterus |
west
foothills |
| NPF |
Cymopterus
terebinthinus (Hook.) T.&G.
var. foeniculaceus (T.
& G.) Cronq. |
Turpentine
cymopterus |
(see
Pteryxia terbinthina var. foeniculacea) |
| |
| NPF |
Lomatium
dissectum (Nutt.) Math. & Const.
var.
multifidum (Nutt.) Math. & Const. |
Fern-leaved
desert-parsley |
scattered
thoughout site |
| NPF |
Lomatium
foeniculaceum (Nutt.) Coult. & Rose
var.
macdougalii (Coult. & Rose) Cronq. |
desert-parsley |
buttes
and west foothills |
| NPF |
Lomatium
triternatum (Pursh) Coult. and Rose
ssp.
triternatum
var. triternaturm |
Nine-leaf
lomatium |
| scattered
thoughout site |
| NPF |
Osmorhiza
berteroi DC, |
Sweet-cicely |
Webb
Springs |
| NPF |
Osmorhiza
chilensis H. & A. |
Sweet-cicely |
(see
O. berteroi) |
| NPF |
Osmorhiza
occidentalis (Nutt.) Torr. |
Western
sweet-cicely |
Webb
Springs |
| NPF |
Pteryxia
terebinthina (Hook.) Coult. & Rose
var.
foeniculacea (Nutt.) Mathias |
Turpentine
cymopterus |
buttes,
west foothills, grassy areas scattered
throughout site |
| Apocynaceae
- Dogbane Family |
| NPF |
Apocynum
cannabinum L.
var.
glabberimum DC. |
Common
dogbane, Hemp dogbane, Indian hemp (now no
varietal status) |
Big
Lost River diversion dam |
| NPF |
Apocynum
cannabinum L.
var.
suksdorfii (Greene) Beg. & Bel. |
Common
dogbane, Indian hemp, Hemp dogbane (now no
varietal status) |
| Big
Lost River diversion dam |
| Asclepiadaceae
- Milkweed Family |
| NPF |
Ascelpias
speciosa Torr. |
Showy
milkweed, Greekweed |
scattered
along roadsides |
| Asteraceae
(Compositae) - Composite or Sunflower Family |
| NPF |
Achillea
millefolium L.
ssp.
lanulosa (Nutt.) Piper
var. lanulosa |
Common
yarrow |
(see
A. millefolium var. occidentalis) |
| NPF |
Achillea
millefolium L.
var.
occidentalis DC. |
Common
yarrow |
widespread
on disturbed areas, roadsides |
| IPF |
Acroptilon
repens (L.) DC. |
Russian
knapweed |
northern
and western edges of the site |
| NPF |
Agoseris
glauca (Pursh) Raf.
var.
laciniata (D.C. Eat.) Smiley |
Pale
agoseris, Short-beaked agoseris |
on
buttes and central area of site |
| NAF |
Ambrosia
acanthicarpa Hook. |
Bur
rageweed, Annual bursage |
Big
Lost River and spreading area |
| NPF |
Antennaria
dimorpha |
Dwarf
pussy-toes, Low pussy toes |
on
buttes and foothills |
| NPF |
Antennaria
microphylla Rydb. |
Pussy-toes |
widespread |
| NPF |
Antennaria
rosea Greene |
Rosy
pussy-toes |
widespread |
| IPF |
Arctium
minus (Hill) Bernh. |
Common
burdock |
occasional
on disturbed areas, Webb Springs on Big Southern
Butte |
| NPF |
Arnica
cordiforia Hook.
var. cordifolia |
Heart-leaved
arnica |
| Big
Southern Butte and East Butte |
| NPS |
Artemisia
arbuscula Nutt.
ssp. arbuscula |
Low
sagebrush, Dwarf sagebrush |
on
buttes, northwest foothills & east of TAN |
| NBF |
Artemisia
biennis Willd. |
Biennial
wormwood |
Birch
Creek and Big Lost River, Webb Springs |
| NPF |
Artemisia
dracunculus L. |
Dragon
sage |
roadside
by Big Lost River, Webb Springs |
| NPS |
Artemisia
frigida Willd. |
Pasture
sagebrush, Fringed sagebrush |
Birch
Creek and spreading area |
| NPF |
Artemisia
ludoviciana Nutt.
var. incompta (Nutt.)
Cronq. |
Silver
sagebrush, Prairie sage |
Big
Lost River, Big Southern Butte, fairly
widespread in scattered areas |
| NPF |
Artemisia
lucoviciana Nutt.
var. lucoviciana |
Silver
sagebrush, Prairie sage |
Big
Lost River, Big Southern Butte, fairly
widespread in scattered areas |
| NPS |
Artemisia
nova A. Nels. |
Black
sagebrush |
buttes
and west foothills |
| NPS |
Artemisia
spinescens Eat. |
Spiny
sagebrush, Bud sagebrush |
Big
Lost River sinks, Birch Creek & north end of
site |
| NPS |
Artemisia
tridentata Nutt.
ssp. tridentata |
Basin
big sagebrush |
widespread
in deeper well-drained sandy soils |
| NPS |
Artemisia
tridentata Nutt.
ssp. wyominensis
Beetle & Young |
Wyoming
Big sagebrush |
most
common sagebrush on site, widespread |
| NPS |
Artemisia
tripartita Rydb. |
Threetip
sagebrush |
buttes,
spreading area, higher elevations in foothills |
| NPF |
Aster
campestris Nutt.
var. camperstris |
Western
meadow aster |
west
foothills, Big Lost River |
| NPF |
Aster
occidentalis (Nutt.) T. & G.
var. occidentalis |
Western
mountain aster |
west
foothills, north edge of site |
| NPF |
Aster
scropulorum Gray |
Crag
aster, Lava aster |
(See
Ionactis alpina) |
| NPF |
Balsamorhiza
hookeri Nutt.
var. hispidula (Sharp)
Cronq. |
Hooker's
balsamroot |
high
on Big Southern Butte and lower on basalt flows
east of butte |
| NPF |
Balsamorhiza
sagittata (Pursh) Nutt. |
Arrowleaf
balsamroot |
on
buttes and foothills |
| NAF |
Bidens
cernua L. |
Nodding
beggar-ticks |
spreading
area and along Big Lost River |
| IPF |
Carduus
nutans L. |
Musk
thistle, Milk thistle |
low
on east side of Big Southern Butte, scattered
elsewhere |
| IBF |
Centaurea
biebersteinii DC. |
Spotted
knapweed |
Reno
Point, gravel pit west foothills, along Highway
22/33 |
| IBF |
Centaurea
maculosa Lam. |
Spotted
knapweed |
(See
C. biebersteinii) |
| IPF |
Centaurea
repens L. |
Russian
knapweed |
(See
Acroptilon repens) |
| NBF |
Chaenactis
douglasii (Hook.) H. &
A.
var. archilleaefolia
(H. & A.) A. Nels |
Hoary
false-yarrow |
(See
C. douglasii var. douglassii) |
| NBF |
Chaenactis
douglasii (Hook.) H. & A.
var. douglasii |
Hoary
false-yarrow |
widespread
throughout sagebrush areas |
| NPS |
Chrysothamnus
nauseosus (Pall.) Britt.
var. consimilis
(Greene) Hall |
Gray
rabbit-brush |
widespread,
common |
| NPS |
Chrysothamnus
viscidiflorus (Hook.) Nutt.
ssp. lanceolatus
(Nutt.) Hall & Clements |
Green
rabbit-brush |
common
with sagebrush, more common than C. nauseosus |
| NPS |
Chrysothamnus
viscidiflorus (Hook.) Nutt.
var. lanceolatus
(Nutt.) Greene |
Green
rabbit-brush |
(see
C. viscidiflorus ssp. lanceolatus) |
| NPS |
Chrysothamnus
viscidiflorus (Hook.) Nutt.
ssp. viscidiflorus
var. stenophyllus
(Gray) Hall |
Green
rabbit-brush |
common
with sagebrush, more common than C. nauseosus |
| IPF |
Cirsium
arvense (L.) Scop.
var. horridum Wimm.
& Grab. |
Canada
thistle, Creeping thistle |
around
base of Big Southern Butte in disturbed areas |
| NPF |
Cirsium
neomexicanum Gray
var. utahense (Petrak)
Welsh |
Utah
thistle |
Big
Southern Butte and Big Lost River Diversion near
roads |
| NPF |
Cirsium
scariosum Nutt. |
Elk
thistle |
moist
streambank along Birch Creek |
| NPF |
Cirsium
subniveum Rydb. |
Jackson's
Hole thistle |
north
of Big Southern Butte on basalt flows |
| NPF |
Cirsium
utahense Petr. |
Utah
thistle |
(see
C. neomexicanum var. utahense) |
| IPF |
Cirsium
vulgare (Savi) Tenore |
Bull
thistle, Common thistle |
disturbed
areas in Central Facilities Area |
| NAF |
Conyza
canadensis (L.) Cronq. |
Horseweed,
Canada fleabane |
Webb
Springs, Frenchman's Cabin, Big Lost River |
| NPF |
Crepis
acuminata Nutt. |
Long-leaved
hawksbeard, Tapertip hawksbeard |
sagebrush
areas throughout site |
| NPF |
Crepis
atribarba Heller
ssp. atribarba |
Slender
hawksbeard |
Webb
Springs & east side Big Southern Butte |
| NPF |
Crepis
atribarba Heller
ssp. originalis
(Babcock & Stebbins) Babcock & Stebbins |
Bearded
hawksbeard |
Big
Southern Butte, west foothills |
| NPF |
Crepis
barbigera Leib. |
Bearded
hawksbeard |
(see
C. atribara ssp. originalis) |
| NPF |
Crepis
modocensis Greene
ssp. modocensis |
Low
hawksbeard |
Big
Southern Butte, west foothills |
| NPF |
Crepis
occidentalis Nutt.
ssp. occidentalis |
Western
hawksbeard |
northern
end of site |
| NPS |
Ericameria
nana Nutt. |
Dwaft
goldenweed |
west
foothills |
| NPF |
Erigeron
compositus Pursh
var. glabratus Macoun |
Cut-leaved
daisy |
west
foothills |
| NPF |
Erigeron
corymbosus Nutt. |
Long-leaf
fleabane |
Big
Southern Butte in dry areas among sagebrush |
| NPF |
Erigeron
filifolius Nutt.
var. filifolius |
Thread-leaf
daisy |
buttes,
west foothills |
| NPF |
Erigeron
glabellus Nutt.
var. glabellus |
Fleabane
daisy |
Big
Lost River |
| NPF |
Erigeron
pumilus Nutt.
ssp. intermedius Cronq.
var. gracilior
Cronq. |
Shaggy
fleabane |
common,
widespread in sagebrush areas |
| NPF |
Erigeron
tweedyi Canby |
Tweedy's
daisy |
west
foothills |
| NPF |
Eriophyllum
lanatum (Pursh) Forbes
var. integrifolium
(Hook) Smiley |
Common
eriophyllum, Wooly sunflower |
East
Butte |
| NAF |
Gnaphalium
palustre Nutt. |
Lowland
cudweed, Everlasting |
Webb
Springs |
| NPF |
Grindelia
squarrosa (Pursh) Dunal
var. quasiperennis Lunnell |
Curly-cup
gumweed, Resin weed |
roadside
weed throughout site |
| NPS |
Guitierrezia
sarothrae (Pursh) Britt. & Rusby |
Matchbrush,
Broom snakeweed |
buttes,
basalt flows throughout site |
| NPF |
Haplopappus
acaulis (Nutt.) Gray
var. acaulis |
Stemless
goldenweed, Strawflower |
(see
Stenotus acaulis var. acaulis) |
| NPF |
Haplopappus
acaulis (Nutt.) Gray
var. glabratus D. C. Eat. |
Stemless
goldenweed, Strawflower |
(see
Stenotus acaulis var. glabratus) |
| NPS |
Haplopappus
nanus (Nutt.) Eat. |
Dwarf
goldenweed |
(see
Ericameria nana) |
| NPF |
Helenium
autumnale L.
var. montanum (Nutt.)
Fern. |
Sneezeweed |
Big
Lost River |
| NAF |
Hilianthus
annus L. |
Annual
sunflower, Common sunflower |
widespread
roadside weed |
| IAF |
Helianthus
petiolaris Nutt. |
Prairie
sunflower |
roadside
along west side of site |
| NPF |
Hymenopappus
filifolius Hook.
var. idahoensis Turner |
Columbia
cut-leaf, hymenopappus |
Reno
point & west foothills |
| NPF |
Ionactis
alpina (Nutt.) Greene |
Crag
aster, Lava aster |
sagebrush
covered basalt and other rock outcrop areas |
| NPF |
Iva
axillaris Pursh |
Poverty-weed |
disturbed
areas scattered throughout site, Big Lost River
& sinks |
| NAF |
Iva
xanthifolia Nutt. |
Tall
marsh elder |
spreading
area, along Big Lost River, sinks |
| NPF |
Lactuca
pulchella (Pursh) DC. |
Blue
lettuce |
(see
Lacuca tatarica var. pulchella) |
| IBF |
Lactuca
serriola L. |
Prickly
lettuce, Prickly wild lettuce |
disturbed
areas throughout site |
| NPF |
Lactuca
tatarica (L.) C.A. Mey
var. pulchella (Pursh)
Breitung |
Blue
lettuce |
roadside
near Atomic City |
| NPF |
Lygodesmia
grandiflora (Nutt.) T. and G. |
Skeletonweed,
Rush pink |
west
foothills, center of site, Big Southern Butte |
| NPF |
Lygodesmia
spinosa Nutt. |
Spiny
skeletonweed |
(see
Stephanomeria spinosa) |
| NVF |
Machaeranthera
canescens (Pursh) Gray |
Hoary
aster |
common
throughout sagebrush areas |
| NAF |
Malacothrix
torreyi Gray |
Torrey
malacothrix |
common
in west foothills |
| IVF |
Matricaria
perforata Merat |
Scentless
may-weed |
Big
Lost River, Webb Springs, infrequent along
roadsides |
| NPF |
Microseris
troximoides Gray |
False
agoseris |
(see
Nothocalais troximoides) |
| NPF |
Nothocalais
troximoides (Gray) Greene |
False
agoseris |
Big
Southern Butte, west foothills |
| NPF |
Senecio
canus Hook. |
Wooly
groundsel |
buttes,
spreading area & widespread with sagebrush |
| NPF |
Senecio
crassulus Gray |
Thick-leaved
groundsel |
widespread
with sagebrush |
| NPF |
Sencio
integerrimus Nutt.
var. exaltatus (Nutt.)
Cronq. |
Western
groundsel, One-stemmed butterweed |
widespread
with sagebrush |
| NPF |
Senecio
serra Hook. |
Tall
butterweed |
Big
Southern Butte |
| IAF |
Senecio
vulgaris L. |
Common
groundsel |
Central
Facilities Area in lawns and flower beds |
| NPF |
Solidago
missouriensis Nutt.
var. fasciculata Holz. |
Missouri
goldenrod |
Big
Lost River |
| IAF |
Sonchus
asper (L.) Hill |
Prickly
sow thistle |
Webb
Springs |
| NPF |
Sphaeromeria
argentea Nutt. |
Chicken
sage |
Reno
Point, west foothills |
| NPF |
Stenotus
acaulis (Nutt.) Nutt.
var. acaulis |
Stemless
goldenweed, Strawflower |
west
foothills and buttes |
| NPF |
Stenotus
acaulis (Nutt.) Nutt.
var. glabratus (D.C.Eat.)
Kartesz & Gandhi |
Stemless
goldenweed, Strawflower |
west
foothills and buttes |
| NAF |
Stephanomeria
exigua Nutt. |
Small
wirelettuce |
west
foothills and scattered thoughout site |
| NPF |
Stephanomeria
spinosa (Nutt.) S. Tomb |
Spiny
skeletonweed |
west
foothills and scattered throughout site |
| NPF |
Stephanomeria
tenuifolia (Torr.) Hall
var. myrioclada (Eat.)
Cronq. |
Narrow-leaved
skeletonweed, Bush wirelettuce |
west
foothills and buttes |
| NPF |
Tanacetum
nuttallii T. & G. |
Chicken
sage |
(see
Sphaeromeria argentea) |
| IPF |
Tanacetum
vulgare L. |
Tansy,
Common tansy |
Big
Lost River and roadside Highway 20 |
| IPF |
Taraxacum
officinale Weber |
Common
dandelion |
scattered
throughout site in weedy areas |
| NPS |
Tetradymia
canescens DC. |
Gray
horsebrush, Spineless horsebrush |
widespread
but uncommon |
| NPS |
Tetradymia
spinosa H. & A. |
Spiny
horsebrush, Catclaw horsebrush |
scattered
but uncommon |
| NVF |
Townsendia
florifer (Hook.) Gray |
Showy
townsendia |
widespread,
common |
| IBF |
Tragopogon
dubius Scop. |
Goat's
beard, Yellow salsify |
widespread,
common |
| NAF |
Xanthium
strumarium L.
var. canadense (Mill.)
T. & G. |
Common
cocklebur |
Big
Lost River, Webb Springs, spreading area and
sinks |
