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

Atocion armeria L.
sweet William catchfly
Caryophyllaceae (Pink family)

Introduction to Vascular Plants

© Robert Flogaus-Faust  Email the photographer   (Photo ID #68874)

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Distribution of Atocion armeria
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Species Information

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Annual herb from a taproot; glabrous to sparsely short-hairy, slightly sticky above; stems erect, solitary, branched, hollow, glabrous, 10-70 cm tall.
Basal leaves linear to spoon-shaped, mostly 2-5 cm long and 0.5-1.5 cm wide, unstalked and more or less clasping, glabrous; stem leaves oblanceolate, unstalked and more or less clasping, glabrous, glaucous; stipules lacking.
Inflorescence of usually several to many flowers in an open to contracted and often flat-topped cluster; petals 5, pink to rose or lavender, stalklike at the bases, the stalks 6-8 mm long, the blades egg-shaped to wedge-shaped, rounded to shallowly lobed, 4-7 mm long; sepals 5, reddish, united, forming a tube 12-17 mm long, 10-nerved, glabrous.
Capsules cylindric egg-shaped, to 16 mm long, 6-valved; seeds dark brown to black, about 0.6 mm long, evenly wrinkled.

Source: The Illustrated Flora of British Columbia

Habitat / Range

Mesic to dry roadsides and fields in the lowland zone; infrequent in SW BC, known only from S Vancouver Island and the lower Fraser Valley; introduced from Europe.

Source: The Illustrated Flora of British Columbia

Synonyms and Alternate Names

Silene armeria L.

Taxonomic and Nomenclatural Links

Additional Photo Sources

General References