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turtleback, velvet turtleback

Habit Annuals or perennials, 3–30 cm; lanate, furfuraceous.
Stems

erect and spreading, much branched.

Leaf

blades rounded-deltate to suborbiculate, 8–25 × 8–30 mm, margins toothed.

Peduncles

3–50 mm.

Involucres

broadly turbinate to campanulate, 6–10 mm.

Florets

16–32;

corollas pale yellow, 4.5–5 mm.

Phyllaries

15–24, outer persistent, 5–6, apically spatulate, tips reflexed to squarrose, inner falling, 10–18, apically lanceolate, tips erect.

Cypselae

1.5–3.5 mm;

pappi of 120–140 subequal bristles in 2–4 series, 3–4 mm.

2n

= 34.

Psathyrotes ramosissima

Phenology Flowering mostly in spring, otherwise sporadically, following rains.
Habitat Sandy soils and desert pavements
Elevation -30–900 m (-100–3000 ft)
Distribution
from FNA
AZ; CA; NV; Mexico (Baja California, Sonora)
[WildflowerSearch map]
[BONAP county map]
Source FNA vol. 21, p. 417.
Parent taxa Asteraceae > tribe Heliantheae > subtribe Gaillardiinae > Psathyrotes
Sibling taxa
P. annua, P. pilifera
Synonyms Tetradymia ramosissima
Name authority (Torrey) A. Gray: Proc. Amer. Acad. Arts 7: 363. (1868)
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