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FNA | Family List | FNA Vol. 4 | Portulacaceae | Lewisia

3b. Lewisia columbiana (Howell ex A. Gray) B. L. Robinson var. rupicola (English) C. L. Hitchcock in C. L. Hitchcock et al., Vasc. Pl. Pacif. N.W. 2: 232. 1964.

Lewisia rupicola English, Proc. Biol. Soc. Wash. 47: 190. 1934; L. columbiana subsp. rupicola (English) Ferris

Basal leaf blades ± linear, mostly 2-3 cm. Cauline leaves usually absent. Inflorescences: basalmost bract margins glandular-toothed. Petals pale pink to deep purple-magenta or rose, (10-)12-13 mm. 2n = 30.

Flowering late spring-summer. Exposed slopes; 800-1700 m; B.C.; Oreg., Wash.

B. Mathew (1989b) noted that the cultivated Lewisia columbiana ‘Rosea’ is this variety. B. L. Davidson (2000) noted that the United States populations have pink to magenta petals, whereas the British Columbia populations have white to pale pink petals characteristic of the other varieties. Mathew questioned the assignment of the British Columbia plants to this variety.


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