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

Apocynum androsaemifolium var. pumilum L. A. Gray
spreading dogbane
Apocynaceae (Dogbane family)

Introduction to Vascular Plants
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Distribution of Apocynum androsaemifolium var. pumilum
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Species Information

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Perennial herb from a rhizome; stems erect, glabrous or hairy, often reddish, 20-70 cm tall, branching; plants with milky juice.
Stem leaves opposite, spreading and drooping, narrow, oval to elliptic, short-stalked, 3-8 cm long, glabrous above, usually hairy beneath.
Inflorescence of compound, flat-topped clusters; corollas pink or whitish with white veins, sweet scented, 4-10 mm long.
Long cylindric pods, 5-12 cm long, seeds numerous with long tufts of cottony hairs (coma).
Two varieties occur in BC:

1. Corollas bell-shaped, 5-10 mm long; pods drooping..................... var. androsaemifolium

1. Corollas more tubular, 4-7 mm long; pods usually erect........................ var. pumilum A. Gray

Source: The Illustrated Flora of British Columbia

Habitat / Range

Dry roadsides, fields, meadows and open forests in the lowland to subalpine zones; common throughout BC except the Queen Charlotte Islands and adjacent coast; N to AK, YT and NT, E to NF and S to GA, TX, NM and CA.

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.

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