Lewisia columbiana

(Howell ex A. Gray) B. L. Robinson in A. Gray et al.

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

Endemic
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.

Distribution

V4 962-distribution-map.gif

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

Discussion

Varieties 3 (3 in the flora).

Selected References

None.

Key

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"
Rounded (?) +  and Truncate (?) +
Mark A. Hershkovitz +  and Sean B. Hogan +
(Howell ex A. Gray) B. L. Robinson in A. Gray et al. +
Calandrinia columbiana +
occasionally dentate;crisped +
flattened +, narrowly linear +  and linear-oblanceolate +
0.5 cm5 mm <br />0.005 m <br /> (1.8 cm18 mm <br />0.018 m <br />) +
persistent +
subequal +
circumscissile +
0.3 cm3 mm <br />0.003 m <br /> (?) +  and 0.6 cm6 mm <br />0.006 m <br /> (?) +
enlarged +
gradually +  and sessile +
subumbellate +
B.C. +, Idaho +, Mont. +, Oreg. +  and Wash. +
disarticulate in fruit +  and persistent +
paniculate +  and racemose +
terminal +  and axillary +
exstipulate +  and secund +
subrosulate +, rosulate +, alternate +, subopposite +  and opposite +
cauline +  and basal +
glandular-toothed +  and toothed +
plurilocular +
0.5 cm5 mm <br />0.005 m <br /> (1.3 cm13 mm <br />0.013 m <br />) +
connate +  and distinct +
Obovate (?) +  and Oblong (?) +
0.5 cm5 mm <br />0.005 m <br /> (1.3 cm13 mm <br />0.013 m <br />) +
in A. Gray et al., Syn. Fl. N. Amer. +
estrophiolate +
Black (?) +  and Brown (?) +
3 +  and 7 +
sculpted +
1.5mm +  and 2mm +
persistent +
suborbiculate +
subequal +
0.15 cm1.5 mm <br />0.0015 m <br /> (0.3 cm3 mm <br />0.003 m <br />) +
distinct +  and scarcely connate and/or adnate +
5 (?) +  and 6 (?) +
branched +, simple +  and scapelike +
deciduous +
10 cm100 mm <br />0.1 m <br /> (12 cm120 mm <br />0.12 m <br />) +
3 +  and 2 +
Oreobroma columbianum +  and Talinum denticulatum +
Lewisia columbiana +
species +
pink +  and magenta +
fleshy +  and succulent +
15 +, 14 +, 13 +, 12 +, 11 +  and 10 +