E-Flora BC: Electronic Atlas of the Flora of British Columbia

Psilocarphus tenellus Nutt.Nutt.
slender woolly-heads (slender woollyheads)
Asteraceae (Aster family)

Introduction to Vascular Plants

© Adolf Ceska  Email the photographer   (Photo ID #5863)

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Distribution of Psilocarphus tenellus
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Species Information

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General:
Annual herb from a short taproot; stems erect at first, later prostrate and matted, much-branched, woolly-hairy, 5-30 cm long.
Leaves:
Basal leaves lacking; stem leaves opposite, spoon-shaped or oblanceolate to oblong, thinly whitish woolly-hairy, 4-15 mm long, 1-5 mm wide.
Flowers:
Heads disciform, usually solitary in leaf axils or at tips of branches; involucres lacking; receptacular bracts, hooded and balloon-like, 1.3-2.5 mm long at maturity; female flowers mostly 25-46.
Fruits:
Achenes nerveless, swollen, broadly oblanceolate to narrowly rounded, tipped with a small style, 0.6-1.2 mm long; pappus lacking.

Source: The Illustrated Flora of British Columbia

Habitat / Range

Moist vernal pathsides and roadsides in the lowland zone; rare in SW BC, known from S Vancouver Island and Saltspring Island; S to ID, OR and MX.

Source: The Illustrated Flora of British Columbia

Climate

The climate type for this species, as reported in the: "British Columbia plant species codes and selected attributes. Version 6 Database" (Meidinger et al. 2008), is not evaluated, unknown or variable.

Synonyms and Alternate Names

Psilocarphus tenellus var. tenellus Nutt.

Taxonomic and Nomenclatural Links

Additional Photo Sources

General References