Psilocarphus brevissimus Nutt.
Dwarf Woolly-heads (Robbin's Pondweed; short woollyheads)
Asteraceae (Aster family)
Introduction to Vascular Plants
Dwarf Woolly-heads (Robbin's Pondweed; short woollyheads)
Asteraceae (Aster family)
Introduction to Vascular Plants
SUBTAXA PRESENT IN BC
Psilocarphus brevissimus var. brevissimus
Species Information
General:
Annual herb from a short taproot; stems prostrate and matted, much-branched, rarely erect and simple in dwarfed forms, woolly-hairy, 8-20 cm long.
Leaves:
Basal leaves lacking; stem leaves opposite, lance-linear, lance-oblong or lance-triangular, 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 balloonlike, 2.5-4.0 mm long at maturity; female flowers mostly 50-80, rarely as few as 20 in dwarfed forms.
Fruits:
Achenes nerveless, more or less cylindric, glabrous, tipped with a small, offset style, 1.0-2.0 mm long; pappus lacking.
Habitat and Range
Moist vernal meadows in the montane zone; rare in SC BC, known only from the Princeton area; S to MT, UT and MX, Chile.Status Information
| Origin Status | Provincial Status | BC List (Red Blue List) | COSEWIC |
|---|---|---|---|
| Native | S1S2 | Red | E (Apr 2006) |
BC Ministry of Environment: BC Species and Ecosystems Explorer.