Lewisia columbiana

(Howell ex A. Gray) B. L. Robinson

in A. Gray et al., Syn. Fl. N. Amer. 1: 269. 1897.

Basionym: Calandrinia columbiana Howell ex A. Gray Proc. Amer. Acad. Arts 22: 277. 1887
Synonyms: Oreobroma columbianum (Howell ex A. Gray) Howell Talinum denticulatum Poellnitz
Treatment appears in FNA Volume 4. Treatment on page 478. Mentioned on page 477, 481.

Taproots gradually ramified distally. Stems procumbent to suberect, 10–12(–30) cm. Leaves: basal leaves evergreen, sessile, blade narrowly linear to linear-oblanceolate, flattened or slightly grooved on adaxial surface, 2–10 cm, margins entire, apex obtuse to acute; cauline leaves absent, or alternate and intergrading with bracts, blade linear, 5–18 mm, margins entire or eglandular-toothed, apex acute. Inflorescences paniculate cymes, 20–100-flowered; bracts alternate proximally, 2 at each flowering node distally, ovate, 2–5 mm, margins toothed to glandular-toothed, apex obtuse. Flowers pedicellate, not disarticulate in fruit; sepals 2, suborbiculate, 1.5–3 mm, herbaceous at anthesis, margins glandular-toothed, apex rounded to truncate; petals 4–9(–11), white with pink veins to pink to magenta, oblong or obovate, 5–13 mm; stamens 5–6; stigmas 2 or 3; pedicel 5–13 mm. Capsules 3–6 mm. Seeds (1–)3–7, 1.5–2 mm, shiny, shallowly warted.


V4 962-distribution-map.gif

B.C., Idaho, Mont., Oreg., Wash.


Varieties 3 (3 in the flora).

Selected References



1 Petals (10-)12-13 mm; cauline leaves usually absent; basalmost bract margins glandular-toothed; basal leaf blades ± linear, 2-3 cm Lewisia columbiana var. rupicola
1 Petals 5-11 mm; cauline leaf and/or basalmost bract margins entire or eglandular-toothed; basal leaf blades narrowly oblanceolate, 2-10 cm > 2
2 Petals 7-11 mm; basal leaf blades 2-10 cm Lewisia columbiana var. columbiana
2 Petals 5-8(-10) mm; basal leaf blades 2-4 cm Lewisia columbiana var. wallowensis
... more about "Lewisia columbiana"
Mark A. Hershkovitz +  and Sean B. Hogan +
(Howell ex A. Gray) B. L. Robinson +
Calandrinia columbiana +
B.C. +, Idaho +, Mont. +, Oreg. +  and Wash. +
in A. Gray et al., Syn. Fl. N. Amer. +
Oreobroma columbianum +  and Talinum denticulatum +
Lewisia columbiana +
species +