Psathyrotopsis scaposa
Phytologia 45: 459. 1980.
Illustrated
Basionym: Psathyrotes scaposa A. Gray Smith-sonian Contr. Knowl. 5(6): 100, plate 13. 1853
Synonyms: Pseudobartlettia scaposa (A. Gray) Rydberg
Treatment appears in FNA Volume 21. Treatment on page 381.
Leaf-blades 1–6 × 1–4 cm. Peduncles (3–) 5–20 mm, stipitate-glandular (at least distally). Disc corollas ca. 5 mm. Cypselae 2.5–3.5 mm; pappus bristles 1–3 mm. 2n = 38.
Phenology: Flowering mostly spring and fall (following rains).
Habitat: Gypseous and calcareous soils in creosote bush scrub-lands
Elevation: 700–1300 m
Distribution
N.Mex., Tex., Mexico (Chihuahua)
Discussion
Selected References
None.
Lower Taxa
None.
... more about "Psathyrotopsis scaposa"
introrse +
connate +
herbaceous +
scarious +
absent +
hirsute +
papillate +
corymbiform +
continuous +
decurrent +
rhombic;lanceolate;rhombic;lanceolate;rounded-deltate +
winged;ribbed;winged;ribbed +
1;15 +
stigmatic +
70;90 +
unequal +
absent +
zygomorphic +
monomorphic +
dimorphic +
obconic +
2.5mm;3.5mm +
5 cm50 mm <br />0.05 m <br /> (?) +
staminate +
straight +
scabrellous +
distinct +
proximal +
1;5 +
bisexual +
dispersed +
singly +
discoid +
indeterminate +
Present +
surrounding +
campanulate;hemispheric +
1cm;4cm +
petiolate +
alternate +
basal +
deltate +
2-carpellate +
inferior +
attached +
anatropous +
persistent +
fragile +
falling +
aristate +
stipitate-glandular +
tough +
thick +
absent +
connate +
persistent +
distinct +
falling +
unequal +
Phytologia +
1980 +
pistillate +
absent +
fertile +
epaleate +
pitted +
knobby +
fibrous +
distinct +
exalbuminous +
modifed +
2;3 +
Illustrated +
alternate +
branched +
erect +
2-branched +
papillate +
Psathyrotopsis scaposa +
Psathyrotopsis +
species +
much shorter +
longer +
perennial +