Hemizonella minima

(A. Gray) A. Gray

Proc. Amer. Acad. Arts 9: 189. 1874.

IllustratedEndemic
Basionym: Hemizonia minima A. Gray Proc. Amer. Acad. Arts 6: 548. 1865
Synonyms: Madia minima (A. Gray) D. D. Keck
Treatment appears in FNA Volume 21. Treatment on page 297. Mentioned on page 296, 306.
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Leaf blades 5–25 × (0.5–)1–3 mm. Involucres (1–)2–4 × (1–)2–4 mm. Disc corollas 1–2.5 mm. Ray cypselae 1.8–2.8 mm; disc cypselae 1.8–2.8 mm. 2n = 42–44.


Phenology: Flowering Apr–Aug.
Habitat: Gravelly or rocky, usually open sites, scrublands, meadows, forests
Elevation: 300–2900 m

Distribution

V21-726-distribution-map.gif

B.C., Calif., Idaho, Mont., Nev., Oreg., Wash.

Discussion

Hemizonella minima is self-compatible, like most other tarweeds that are distributed widely in western North America. Taylor 8147 (JEPS), from the Sierra Nevada (Tioga Peak, Mono County, California), is an unusually late-flowering (15 Sep 1982) and high-elevation (2900 m) collection.

Selected References

None.

Lower Taxa

None.
... more about "Hemizonella minima"
Bruce G. Baldwin +  and John L. Strother +
(A. Gray) A. Gray +
Hemizonia minima +
B.C. +, Calif. +, Idaho +, Mont. +, Nev. +, Oreg. +  and Wash. +
300–2900 m +
Gravelly or rocky, usually open sites, scrublands, meadows, forests +
Flowering Apr–Aug. +
Proc. Amer. Acad. Arts +
Illustrated +  and Endemic +
Madia minima +
Hemizonella minima +
Hemizonella +
species +