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

Cuscuta cephalanthi Engelm.
button-bush dodder (buttonbush dodder)
Convolvulaceae (Dodder family)
(Previously in Cuscutaceae)

Introduction to Vascular Plants
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Distribution of Cuscuta cephalanthi
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Species Information

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Parasitic, leafless perennial herb; stems threadlike, twining and sticking to other plants by means of suckers.
Reduced to tiny scales.
Inflorescence of several to many stalkless flowers in clusters or globular masses; flowers about 2 mm long, with 4 (sometimes 3 or 5) petals/sepals; sepals free nearly to the base, unequal.
Capsules globose, not opening in an irregularly circular fashion near the base, 2.5 mm in diameter; seeds 1-4.

Source: The Illustrated Flora of British Columbia

Habitat / Range

Parasitic on herbs, shrubs and subshrubs in the lowland zone; rare in SW BC; S to OR; also Atlantic Coast; possibly introduced.

Source: The Illustrated Flora of British Columbia


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

Grammica cephalanthi (Engelm.) Hadac & Chrtek

Taxonomic and Nomenclatural Links

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General References