Lewisia triphylla

(S. Watson) B. L. Robinson

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

IllustratedEndemic
Basionym: Claytonia triphylla S. Watson Proc. Amer. Acad. Arts 10: 345. 1875
Synonyms: Erocallis triphylla (S. Watson) Rydberg Oreobroma triphyllum (S. Watson) Howell
Treatment appears in FNA Volume 4. Treatment on page 484. Mentioned on page 477, 485.

Taproots cormlike, globose. Stems lax to erect, 3–11 cm. Leaves: basal leaves withering before anthesis, ± sessile, blade narrowly linear to filiform, subcylindric, 1–6 cm, margins entire, apex obtuse to subacute; cauline leaves 2–3(–5), paired or whorled, blade similar to basal leaves, 10–50 mm. Inflorescences usually subumbellate to paniculate cymes, (1–)3–25-flowered; bracts 2 per flower, ovate to lanceolate, 1–5 mm, margins entire, apex obtuse to subacute. Flowers pedicellate, not disarticulate in fruit; sepals 2, ovate, 2–4 mm, herbaceous, margins entire, apex rounded to obtuse; petals 5–9, white or pinkish with darker veins, elliptic-obovate to elliptic-ovate, 4–7 mm; stamens (3–)4(–5); stigmas 3–5; pedicel 5–15(–25) mm. Capsules 3–4 mm. Seeds 8–25, 1 mm, shiny, shallowly tuberculate.


Phenology: Flowering late spring–summer.
Habitat: Open places, sandy to gravelly soils, sometimes alpine meadows, usually near melting snow
Elevation: 1500-3300 m

Distribution

V4 983-distribution-map.gif

B.C., Calif., Colo., Idaho, Mont., Nev., Oreg., Utah, Wash., Wyo.

Discussion

Selected References

None.

Lower Taxa

None.
... more about "Lewisia triphylla"
Mark A. Hershkovitz +  and Sean B. Hogan +
(S. Watson) B. L. Robinson +
Claytonia triphylla +
B.C. +, Calif. +, Colo. +, Idaho +, Mont. +, Nev. +, Oreg. +, Utah +, Wash. +  and Wyo. +
1500-3300 m +
Open places, sandy to gravelly soils, sometimes alpine meadows, usually near melting snow +
Flowering late spring–summer. +
in A. Gray et al., Syn. Fl. N. Amer. +
Illustrated +  and Endemic +
Erocallis triphylla +  and Oreobroma triphyllum +
Lewisia triphylla +
species +