Croptilon hookerianum var. validum
Sida 9: 61. 1981.
Endemic
Basionym: Isopappus validus Rydberg Brittonia 1: 100. 1931
Synonyms: Haplopappus validus (Rydberg) Cory
Treatment appears in FNA Volume 20. Treatment on page 229.
Stems and peduncles densely long-stipitate-glandular (longest hairs 0.4–0.5 mm, including glands), often slightly hispid proximal to heads. Ray laminae 1–2.5 mm wide. 2n = 10 (11, 12).
Phenology: Flowering (Jun–)Jul–Oct.
Habitat: Sand, sandy gravel, dunes, stream terraces, sandstone outcrops, often in areas of oak woodlands, roadsides, roadbanks
Elevation: 20–400 m
Distribution
Ark., Kans., Okla., Tex.
Discussion
Selected References
None.
Lower Taxa
None.
... more about "Croptilon hookerianum var. validum"
arachnoid +
introrse +
connate +
distinct +
herbaceous +
scarious +
hirsute +
papillate +
continuous +
decurrent +
3-nerved +
narrowly oblanceolate;lanceolate +
ribbed +
stigmatic +
barbellate +
persistent +
30;35 +
equal +
absent +
lanceolate;linear +
reduced +
absent +
6-14+-nerved +
dimorphic +
staminate +
straight +
distinct +
proximal +
1;5 +
bisexual +
dispersed +
Sand, sandy gravel, dunes, stream terraces, sandstone outcrops, often in areas of oak woodlands, roadsides, roadbanks +
indeterminate +
surrounding +
campanulate +
sessile +
alternate +
erect;spreading +
triangular +
scarious +
2-carpellate +
inferior +
attached +
anatropous +
persistent +
proximal +
tough +
thick +
absent +
connate +
1-nerved +
persistent +
distinct +
herbaceous +
falling +
unequal +
Sida +
1981 +
pistillate +
absent +
fertile +
epaleate +
pitted +
concave;usually flat;conic +
fibrous +
exalbuminous +
modifed +
1;3;5 +
Endemic +
alternate +
erect +
proximal +
linear-triangular +
2-branched +
glabrous +
Croptilon hookerianum var. validum +
Croptilon hookerianum +
variety +
tubular +
shorter +
taprooted +