Aphanostephus skirrhobasis var. skirrhobasis
Endemic
Treatment appears in FNA Volume 20. Treatment on page 352.
Plants 10–30 (–50) cm. Stems erect to decumbent, puberulent, hairs spreading-deflexed, 0.1–0.3 mm. Leaves not strongly thickened or felty gray-hairy. Ray-florets (18–) 24–45. Pappi coroniform, usually uneven, ciliate, 0.1–0.3 mm, rarely of awn-tipped scales. 2n = 6.
Phenology: Flowering (Mar–)Apr–Jul(–Aug).
Habitat: Sand, sandy loam, sandy clay, silt, gravel, river terraces, oak woodlands, mesquite savannas, fields, roadsides
Elevation: 10–900 m
Distribution
Ark., Kans., La., N.Mex., Okla., Tex.
Discussion
Selected References
None.
Lower Taxa
None.
... more about "Aphanostephus skirrhobasis var. skirrhobasis"
introrse +
connate +
distinct +
herbaceous +
scarious +
hirsute +
papillate +
continuous +
bulbous-swollen +
indurate +
1-nerved +
broadly oblanceolate;linear-lanceolate +
ribbed +
stigmatic +
persistent +
absent +
absent +
monomorphic +
4-12-thick-ribbed +
dimorphic +
staminate +
straight +
distinct +
proximal +
1;5 +
bisexual +
dispersed +
Sand, sandy loam, sandy clay, silt, gravel, river terraces, oak woodlands, mesquite savannas, fields, roadsides +
coiled +
spreading-deflexed +
singly +
indeterminate +
surrounding +
depressed-hemispheric +
alternate +
thickened +
erect +
deltate +
scarious +
purplish +
broad +
2-carpellate +
inferior +
attached +
anatropous +
persistent +
absent +
coroniform +
uneven +
tough +
thick +
absent +
connate +
1-nerved +
persistent +
appressed +
distinct +
falling +
ovatelanceolate +
Rep. (Annual) Arkansas Geol. Surv. +
1891 +
pistillate +
absent +
fertile +
epaleate +
pitted +
conic +
fibrous +
awn-tipped +
connate +
acute +
exalbuminous +
modifed +
1;3;4 +
Endemic +
alternate +
branched +
puberulent +
deltate +
2-branched +
glabrous +
Aphanostephus skirrhobasis var. skirrhobasis +
Aphanostephus skirrhobasis +
variety +
tubular +
taprooted +
annual +