OregonFlora species comparison

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Sericocarpus tortifolius

Sericocarpus rigidus

rigid white-topped aster
Habit Plants 10–45 cm.
Leaves

2–5 cm, usually 3–5-veined.
Inflorescences

usually not branched;

bracts ovate, puberulent.
Involucres

5–9 mm.
Ray florets

1–2(3);

rays 1–3 mm.
Disc florets

9–20;

corollas 4–6 mm, exserted from involucres;

lobes 0.5–1 mm;

anthers purple.
Fruits

2–4 mm;

surfaces densely white-strigose;

pappus bristles 6–7 mm, white.

Sericocarpus tortifolius

Sericocarpus rigidus
Distribution
[WildflowerSearch map]
[BONAP county map]
[WildflowerSearch map]
[BONAP county map]
Discussion

Grasslands. Flowering Jul–Sep. 50–400 m. WV. WA; north to British Columbia. Native.

Sericocarpus rigidus is a rare species of remnant Willamette Prairie grasslands. It is classified as a threatened species by the Oregon Department of Agriculture.
Source Flora of Oregon, volume 2, page 342
Kenton Chambers
Sibling taxa
S. oregonensis, S. rigidus
S. oregonensis
Synonyms Aster curtus
Web links 
Unless otherwise noted, all data comes from OregonFlora.



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