Psilostrophe sparsiflora
Proc. Biol. Soc. Wash. 16: 23. 1903.
Endemic
Basionym: Riddellia tagetina var. sparsiflora A. Gray in A. Gray et al., Syn. Fl. N. Amer. 1(2): 318. 1884
Treatment appears in FNA Volume 21. Treatment on page 454.
Biennials or perennials (rarely flowering first-year), 10–40+ cm. Stems ± strigillose (greenish, sometimes ± villous in proximal axils). Heads in ± corymbiform arrays. Peduncles 8–12 (–25+) mm. Involucres 4–6 mm. Ray-florets (1–) 2–3 (–4); corolla laminae (6–) 8–10+ mm, reflexed in fruit. Disc-florets 7–9. Cypselae usually glabrous, sometimes glanddotted; pappi of 4–5 lanceolate to lance-subulate scales 2–3 mm. 2n = 32.
Phenology: Flowering May–Sep.
Habitat: Grasslands, pinyon-juniper scrub, sagebrush scrub, yellow pine forests
Elevation: 900–2200 m
Distribution
Ariz., N.Mex., Utah.
Discussion
Selected References
None.
Lower Taxa
None.
... more about "Psilostrophe sparsiflora"
introrse +
connate +
herbaceous +
scarious +
absent +
hirsute +
papillate +
corymbiform +
continuous +
decurrent +
spatulate;oblanceolate or linear +
winged;ribbed;winged;ribbed +
1;15 +
stigmatic +
35;150 +
absent +
zygomorphic +
reflexed +
monomorphic +
striate-ribbed +
dimorphic +
glabrous +
staminate +
staminate +
straight +
distinct +
proximal +
1;5 +
bisexual +
dispersed +
corymbiform +
singly +
glomerulate +
cluster +
indeterminate +
surrounding +
cylindric;campanulate or obconic +
alternate +
deltate +
2-carpellate +
inferior +
attached +
anatropous +
persistent +
falling +
tough +
thick +
absent +
connate +
persistent +
distinct +
falling +
unequal +
Proc. Biol. Soc. Wash. +
1903 +
pistillate +
absent +
fertile +
epaleate +
convex;flat +
fibrous +
entire +
absent +
exalbuminous +
modifed +
1;2 +
Endemic +
alternate +
branched +
strigillose +
2-branched +
papillate +
Psilostrophe sparsiflora +
Psilostrophe +
species +
cylindric +
shorter +
dilated +
equaling +