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littleleaf horsebrush

Habit Plants 2–12 dm, not rhizomatous.
Stems

unarmed, densely tomentose with glabrate stripes.

Involucres

turbinate, 7–10 mm.

Florets

4;

corollas 6–10 mm, yellow, rarely cream.

Phyllaries

4(5);

surfaces glabrous to tomentose.

Fruits

2.5–3.5 mm; hirsute, pappi of 100–140 bristles, 6–10 mm.

Heads

3–7.

Primary leaves

narrowly awl-shaped, 4–18 mm;

surfaces glabrous to sparsely floccose.

Secondary leaves

filiform to linear, 2–13 mm;

surfaces glabrous.

2n

=60, 62, 120, 180.

Tetradymia glabrata

Distribution
[WildflowerSearch map]
[BONAP county map]
Discussion

Sagebrush, juniper forests. Flowering May–Jul. 700–1700 m. BR, Owy. CA, ID, NV; southeast to UT. Native.

Source Flora of Oregon, volume 2, page 362
Stephen Meyers
Sibling taxa
T. canescens, T. spinosa
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