Prenanthella exigua
Bull. Torrey Bot. Club 33: 161. 1906.
Common names: Brightwhite desert prenanthella
Illustrated
Basionym: Prenanthes exigua A. Gray Smithsonian Contr. Knowl. 5(6): 105. 1853
Synonyms: Lygodesmia exigua (A. Gray) A. Gray
Treatment appears in FNA Volume 19. Treatment on page 360.
Leaves 1–3 cm, reduced distally to bracts 0.5–5 mm. Heads 10–150+. Calyculus bractlets 0.5–1+ mm. Principal phyllaries 3–5 mm after flowering. Corollas 1.5–2 mm. Cypselae 2.5–3.5 mm; pappi: longest bristles 2–3 mm. 2n = 14.
Phenology: Flowering Mar–Jun.
Habitat: Sandy, gravelly, or clay soils, desert washes and open slopes to sagebrush-juniper steppes
Elevation: 20–1900 m
Distribution

Ariz., Calif., Colo., Nev., Oreg., Tex., Utah, Mexico (Baja California), Mexico (Sonora)
Discussion
Selected References
None.
Lower Taxa
None.
"fine" is not a number.
... more about "Prenanthella exigua"
tailed +
introrse +
connate +
acute +
scarious +
developed +
absent +
hirsute +
papillate +
paniculiform +
persistent +
falling +
continuous +
decurrent +
runcinate;spatulate;oblanceolate +
winged +
ribbed +
deltate +
filiform +
stigmatic +
barbellate +
white +
connate +
coarse +
unequal +
absent +
grooved +
pale-brown +
glabrous +
rugulose +
2.5mm;3.5mm +
straight +
distinct +
ligulate +
proximal +
3;4 +
bisexual +
dispersed +
subsessile +
singly +
indeterminate +
10;150 +
homogamous +
Present +
surrounding +
cylindric;ovoid +
alternate +
prickly +
hyaline +
2-carpellate +
inferior +
attached +
anatropous +
falling +
bracteate +
not inflated +
tough +
thick +
connate +
persistent +
herbaceous +
equal +
Bull. Torrey Bot. Club +
1906 +
epaleate +
glabrous +
flat;convex +
fibrous +
exalbuminous +
modifed +
Illustrated +
alternate +
branched +
erect +
2-branched +
hirsute +
papillate +
Prenanthella exigua +
Prenanthella +
species +
spinulose +
taprooted +
annual +