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

Rudbeckia hirta var. pulcherrima L. Farw.
black-eyed susan (blackeyed susan)
Asteraceae (Aster family)

Introduction to Vascular Plants

© RĂ©al Sarrazin  Email the photographer   (Photo ID #26866)

E-Flora BC Static Map
Distribution of Rudbeckia hirta var. pulcherrima
Click here to view our interactive map and legend
Details about map content are available here
Click on the map dots to view record details.

Species Information

Click on the image below to view an expanded illustration for this species.

Biennial to short-lived perennial herb from a thick, woody stem-base; stems erect, solitary to several, simple or few-branched above, rough-hairy, 30-100 cm tall.
Basal leaves soon deciduous; stem leaves alternate, oblanceolate to elliptic, entire to toothed, 3-15 cm long, 1-3 cm wide, long-stalked near the bases, becoming unstalked, lanceolate to egg-shaped and reduced upwards.
Heads with ray and disk flowers, solitary at the ends of branches; disks hemispheric or egg-shaped, dark purple or brown, 10-20 mm wide; involucral bracts 6-10 mm, lanceolate, reflexed when mature, long-hairy; ray flowers orange, 8-20, darker at the tips, reflexed, 2-4 cm long; disk flowers purple or brown; receptacular bracts abruptly sharp-pointed, hairy near the tip.
Achenes oblong, glabrous, 1.8-2 mm long; pappus lacking.

Source: The Illustrated Flora of British Columbia

Habitat / Range

Moist to mesic fen edges, dry roadsides and disturbed areas in the lowland, steppe and montane zones; infrequent in S BC; introduced from central U.S.

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

Rudbeckia bicolor Nutt.
Rudbeckia hirta var. corymbifera Fern.
Rudbeckia hirta var. lanceolata (Bisch.) Core
Rudbeckia hirta var. sericea (T.V. Moore) Fern.
Rudbeckia hirta var. serotina (Nutt.) Core
Rudbeckia longipes T.V. Moore
Rudbeckia sericea T.V. Moore
Rudbeckia serotina Nutt.
Rudbeckia serotina var. corymbifera (Fern.) Fern. & Schub.
Rudbeckia serotina var. lanceolata (Bisch.) Fern. & Schub.
Rudbeckia serotina var. sericea (T.V. Moore) Fern. & Schub.

Taxonomic and Nomenclatural Links

Additional Photo Sources

General References