Flora of North America species comparison

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Tetradymia stenolepis

Mojave cottonthorn, narrow scale felt thorn
Habit Shrubs, 30–120 cm.
Stems

1–5+, erect, spiny, pannose but for tomentose to glabrescent streaks.
Leaves

primaries forming straight, ascending spines, 20–30 mm;

secondaries oblanceolate to spatulate, 10–30 mm, tomentose to sericeous.
Peduncles

5–12 mm.
Involucres

turbinate, 8–10 mm.
Florets

4–5;

corollas pale yellow, 10–12 mm.
Phyllaries

4–5, narrowly ovate.
Heads

4–7.
Cypselae

5–8 mm, densely pilose or villous;

pappi of 100–150 bristles 9–12 mm.
2n

= 60.

Tetradymia stenolepis
Phenology Flowering spring–summer.
Habitat Sandy and gravelly places, Joshua tree woodlands, creosote bush scrub
Elevation 600–1500 m (2000–4900 ft)
Distribution
from FNA
AZ; CA; NV
[WildflowerSearch map]
[BONAP county map]
Source FNA vol. 20, p. 631.
Parent taxa Asteraceae > tribe Senecioneae > Tetradymia
Sibling taxa
T. argyraea, T. axillaris, T. canescens, T. comosa, T. filifolia, T. glabrata, T. nuttallii, T. spinosa, T. tetrameres
Name authority Greene: Bull. Calif. Acad. Sci. 1: 92. (1885)
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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