Aphanostephus ramosissimus var. humilis
Phytologia 45: 501. 1980.
Basionym: Leucopsidium humile Bentham Pl. Hartw., 18. 1839
Synonyms: Aphanostephus arizonicus A. Gray Aphanostephus humilis (Bentham) A. Gray
Treatment appears in FNA Volume 20. Treatment on page 353.
Plants 6–15 cm. Involucres 4.7–7.5 mm. Ray-florets 26-–35. Cypselae (1.1–) 1.4–1.6 mm; pappi 0 or minutely ciliate rings 0.1–0.2 mm, sometimes nearly smooth. 2n = 8.
Phenology: Flowering Apr–Jun(–Oct).
Habitat: Sand and gravel bars, limestone soils, Larrea flats, mesquite savannas, roadsides, disturbed sites
Elevation: 700–1600 m
Distribution
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Ariz., N.Mex., Tex., Mexico (Chihuahua), Mexico (Coahuila), Mexico (Durango), Mexico (Nuevo León), Mexico (Tamaulipas), Mexico (Zacatecas)
Discussion
Selected References
None.
Lower Taxa
None.
... more about "Aphanostephus ramosissimus var. humilis"
introrse +
connate +
distinct +
herbaceous +
scarious +
hirsute +
papillate +
continuous +
decurrent +
1-nerved +
broadly oblanceolate;linear-lanceolate +
ribbed +
stigmatic +
persistent +
absent +
swollen +
indurate +
absent +
absent +
monomorphic +
4-12-thick-ribbed +
dimorphic +
1.4mm;1.6mm +
staminate +
straight +
distinct +
proximal +
1;5 +
bisexual +
dispersed +
Sand and gravel bars, limestone soils, Larrea flats, mesquite savannas, roadsides, disturbed sites +
straight +
singly +
indeterminate +
surrounding +
depressed-hemispheric +
alternate +
erect +
deltate +
scarious +
purplish +
broad +
2-carpellate +
inferior +
attached +
anatropous +
persistent +
absent +
tough +
thick +
absent +
connate +
1-nerved +
persistent +
appressed +
distinct +
falling +
ovatelanceolate +
acute +
Phytologia +
1980 +
pistillate +
absent +
fertile +
epaleate +
pitted +
conic +
fibrous +
awn-tipped +
connate +
setiform +
exalbuminous +
modifed +
1;3;4 +
Illustrated +
alternate +
branched +
spreading-hairy +
deltate +
2-branched +
glabrous +
Aphanostephus ramosissimus var. humilis +
Aphanostephus ramosissimus +
variety +
tubular +
hispidulo-puberulent +
taprooted +
annual +