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

Lewisiopsis tweedyi (A. Gray) B.L. Rob.
Tweedy's lewisia
Montiaceae (Purslane family)
(Previously in Portulacaceae)

Introduction to Vascular Plants

© Don Martyn  Email the photographer   (Photo ID #26012)

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Distribution of Lewisiopsis tweedyi
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Species Information

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Perennial herb from a large, thick, reddish taproot with a branched crown; stems ascending to erect, several, branched, 10-20 cm tall.
Basal leaves oblong-oblanceolate or widely egg-shaped, 10-20 cm long, 1-5 cm wide, narrowing to a thick stalk about 5 cm long; stem leaves lacking or with 1 or 2 reduced leaves below.
Inflorescence a loose, terminal raceme with 2-5 flowers on stalks 2-5 cm long; floral bracts linear, few; petals 7-9, salmon-coloured, yellowish-pink, sometimes white, egg-shaped, 2.5-4 cm long; sepals 2, 0.8-1 cm long; stamens 12-25.
Capsules, opening by 3 or 4 valves; seeds numerous, deep brownish-red, warty, 2 mm long.

Source: The Illustrated Flora of British Columbia

Habitat / Range

Dry talus slopes and cliffs in the upper montane zone; rare in SC BC, known only from Manning Provincial Park; S to C WA.

Source: The Illustrated Flora of British Columbia

Taxonomic and Nomenclatural Links

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General References