Sidalcea oregana (Nutt. ex Torr. & A. Gray) A. Gray subsp. oregana
Oregon checker-mallow
Malvaceae (Mallow family)

Introduction to Vascular Plants

Photograph

© Reg Newman     (Photo ID #12116)


Map

E-Flora BC Static Map

Distribution of Sidalcea oregana subsp. oregana
Click here to view the full interactive map and legend

Species Information

General:
Perennial herb from a stout taproot and a branched crown, without rhizomes; stems erect, not hollow, glabrous to soft-hairy or with star-like hairs, 20-150 cm tall.
Leaves:
Basal leaves heart-shaped, long-stalked, shallowly lobed, toothed; stem leaves alternate, palmately 5-7 lobed into oblong segments, stalks reduced upwards; stipules purple-tinged.
Flowers:
Inflorescence of numerous flowers in open, loose, terminal clusters on stalks 1-10 mm long; petals 5, light pink to deep pink, 1-2 cm long; calyces 3.5-9 mm long, hairy to bristly-hairy or with long hairs up to 2.5 mm long, bractlets lacking.
Fruits:
Carpels, 2.5-3 mm long, 5-10, honeycombed on the sides and back, the beaks 0.3-0.7 mm long; seeds 1.

SourceThe Illustrated Flora of British Columbia

Illustration

If more than one illustration is available for a species (e.g., separate illustrations were provided for two subspecies) then links to the separate images will be provided below. Note that individual subspecies or varietal illustrations are not always available.

Habitat and Range

Dry grasslands, shrublands and forest openings in the steppe and lower montane zones; rare in SC BC; S to WY, UT and CA.

SourceThe Illustrated Flora of British Columbia

Synonyms

Synonyms and Alternate Names:
Sidalcea oregana var. procera