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

General:
Perennial herb from widespread rhizomes, sometimes with basal winter bulblets, stolons short and leafy or compact; stems erect, 15-75 cm tall, simple or branched above, glabrous or short stiff-hairy in lines.

Leaves:
Mostly opposite, spoon- to egg-shaped, 2.5-8 cm long, 1.2-3.5 cm wide, glandular-toothed, sharp-pointed, glabrous except for the (usually) minutely-hairy margins and midrib; stalks 1-3 mm long.

Flowers:
Inflorescence of 2 to 10 flowers in upper leaf axils, nodding in bud, densely glandular and short stiff-hairy; hypanthium cup-shaped, 1.2-3 mm long; petals shallowly heart-shaped,12-22 mm long, yellow or cream, wavy-margined, notched at tip; sepals linear-lanceolate,10-12 mm long, densely glandular; anthers 2.2-3 mm long; ovaries 2-3.5 cm long, densely glandular; styles usually noticeably longer than petals; stigmas 4-lobed, the lobes 2 mm long, oblong egg-shaped.

Fruits:
Capsules, erect, linear, 4-8 cm long, glandular-hairy; stalks 10-22 mm long, glandular- and minutely-hairy; seeds 1-1.2 mm long, netted, tuft of hairs rust-colored, 6.5-8 mm long, persisting.

Notes:
Hybrids occur rarely between this species and others in BC. They resemble E. luteum with pink petals greater than 1 cm long. Hybrids between E. luteum and E. ciliatum ssp. glandulosum have been called E. x treleasianum Lev.