Flora of North America species comparison

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Psilostrophe sparsiflora

greenstem paperflower
Habit Biennials or perennials (rarely flowering first year), 10–40+ cm.
Stems

± strigillose (greenish, sometimes ± villous in proximal axils).
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.
Heads

in ± corymbiform arrays.
Cypselae

usually glabrous, sometimes gland-dotted;

pappi of 4–5 lanceolate to lance-subulate scales 2–3 mm.
2n

= 32.

Psilostrophe sparsiflora
Phenology Flowering May–Sep.
Habitat Grasslands, pinyon-juniper scrub, sagebrush scrub, yellow pine forests
Elevation 900–2200 m (3000–7200 ft)
Distribution
from FNA
AZ; NM; UT
[WildflowerSearch map]
[BONAP county map]
Source FNA vol. 21, p. 454.
Parent taxa Asteraceae > tribe Heliantheae > subtribe Gaillardiinae > Psilostrophe
Sibling taxa
P. bakeri, P. cooperi, P. gnaphalodes, P. tagetina, P. villosa
Synonyms Riddellia tagetina var. sparsiflora
Name authority (A. Gray) A. Nelson: Proc. Biol. Soc. Wash. 16: 23. (1903)
Web links 
Unless otherwise noted, all data comes from the online version of the Flora of North America, who have made most of their content available via a Creative Commons license (CC BY 4.0).



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(If the plant you're looking for doesn't show up in the auto-complete list, that means it either isn't described in Flora of North America yet, or it's listed under a synonym. And please note that Flora of North America is still missing several plant families, including Fabaceae, Apiaceae, Boraginaceae, and Polemoniaceae.)

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