Braya glabella subsp. glabella |
Braya glabella subsp. purpurascens |
|
---|---|---|
smooth braya, smooth northern-rockcress |
smooth northern-rockcress |
|
Stems | ascending to erect, 0.5–1.7(–2.3) dm. |
ascending to erect, 0.3–1(–1.3) dm. |
Leaves | blade often somewhat fleshy, to 4 mm wide, margins often entire, sometimes 1 or 2 weak teeth per side. |
blade often fleshy, to 4 mm wide, margins usually entire, rarely 1 or 2 weak teeth per side. |
Racemes | often loosely elongated in fruit. |
not elongated in fruit (often compact). |
Fruits | oblong to narrowly oblong-lanceoloid, often curved, (0.3–)0.5–1.2(–1.5) cm × (0.8–)1.1–3(–3.6) mm, 3.5–8.3 times as long as wide; style slender or stout, (0.3–)0.5–1.6(–2) mm. |
oval-elliptic to oblong-elliptic, usually straight, 0.5–1 cm × 1.5–3 mm, 2.5–3.7 times as long as wide; style slender or stout, (0.3–)0.5–1.2 mm. |
2n | = 56. |
= 56. |
Braya glabella subsp. glabella |
Braya glabella subsp. purpurascens |
|
Phenology | Flowering Jun–Jul. | Flowering Jun–Jul. |
Habitat | Barren, usually calcareous soils and gravel, gravel bars, disturbed sites, lake and sea shores, scree slopes, solifluction lobes | Barren, usually calcareous soils and gravel on solifluction lobes, scree, gravel bars, disturbed sites, rocky slopes, seashores |
Elevation | 0-3700 m (0-12100 ft) | 0-1800 m (0-5900 ft) |
Distribution |
AK; CO; MT; WY; AB; BC; NT; NU; QC; YT; Asia |
AK; BC; NT; NU; n Eurasia |
Source | FNA vol. 7, p. 548. | FNA vol. 7, p. 548. |
Parent taxa | ||
Sibling taxa | ||
Synonyms | B. alpina var. americana, B. americana, B. bartlettiana, B. bartlettiana var. vestita, B. henryae, B. humilis var. americana | Platypetalum purpurascens, B. arctica, B. purpurascens, B. purpurascens var. dubia, Platypetalum dubium |
Name authority | unknown | (R. Brown) W. J. Cody: Canad. Field-Naturalist 108: 93. (1964) |
Web links |