Shinnersoseris rostrata
Sida 5: 186. 1974.
Common names: Beaked or annual skeleton-weed
IllustratedEndemic
Basionym: Lygodesmia juncea var. rostrata A. Gray Proc. Acad. Nat. Sci. Philadelphia 15: 69. 1864
Synonyms: Lygodesmia rostrata (A. Gray) A. Gray
Treatment appears in FNA Volume 19. Treatment on page 369.
Leaves: blades 6–15 cm × 2–4 mm, distalmost reduced to scales. Calyculus bractlets 1–5 mm. Involucres 12–18 × 4–5 mm. Phyllaries 16–20 mm, faces glabrous. Corollas 15–16 mm. Cypselae 8–10 mm; pappi 6–8 mm. 2n = 12.
Phenology: Flowering Jul–Sep.
Habitat: Sandy soils of stream banks, dunes, and sand hills in prairies
Elevation: 300–1500 m
Distribution
Alta., Man., Sask., Colo., Iowa, Kans., Minn., Nebr., N.Dak., Okla., S.Dak., Tex., Utah, Wyo.
Discussion
Shinnersoseris rostrata grows in the Prairies and Great Plains region of North America.
Selected References
None.
Lower Taxa
None.