Tetradymia tetrameres

(S. F. Blake) Strother

Brittonia 26: 192. 1974.

Endemic
Basionym: Tetradymia comosa subsp. tetrameres S. F. Blake Proc. Biol. Soc. Wash. 35: 176. 1922
Treatment appears in FNA Volume 20. Treatment on page 631. Mentioned on page 630.

Shrubs, 30–200 cm. Stems 1–10+, erect (wandlike), unarmed, evenly pannose. Leaves: primaries linear-filiform, flaccid, 10–40 mm; secondaries filiform-spatulate, 10–20 mm, sparsely tomentose. Heads 4–6. Peduncles 1–3 cm. Involucres turbinate, 8–9 mm. Phyllaries 4–5, oval-elliptic. Florets 4–5; corollas pale yellow, ca. 8 mm. Cypselae 5–6 mm, densely pilose (hairs 4–7 mm); pappi of ca. 20, coarse bristles or subulate scales 3–5 mm. 2n = 60.


Phenology: Flowering late spring–early summer.
Habitat: Deep sands or dunes, sagebrush scrub
Elevation: 1200–2100 m

Discussion

Selected References

None.

Lower Taxa

None.