Difference between revisions of "Braya humilis subsp. porsildii"
Novon 16: 348. 2006.
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name=Braya humilis subsp. porsildii | name=Braya humilis subsp. porsildii | ||
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|authority=J. G. Harris | |authority=J. G. Harris | ||
|rank=subspecies | |rank=subspecies | ||
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|publication year=2006 | |publication year=2006 | ||
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|tribe=Brassicaceae tribe Euclidieae | |tribe=Brassicaceae tribe Euclidieae | ||
|genus=Braya | |genus=Braya | ||
Latest revision as of 23:36, 5 November 2020
Stems ascending to erect or, rarely, decumbent, usually unbranched, 0.3–1.7(–2.5) dm, densely pubescent. Leaves: blade margins usually entire, sometimes weakly sinuate-dentate, surfaces densely pubescent. Flowers: petals white, 4.4–6.9 × (1.9–)2.3–4.2 mm. Fruits often abortive, somewhat torulose, 0.8–1.2 mm wide when fully developed; septum not fenestrate or split longitudinally. 2n = 28.
Phenology: Flowering May–Jul.
Habitat: Dry alpine scree slopes, glacial moraines, and gravel bars, often on limestone gravels and soils
Elevation: 500-3000 m
Distribution
Alta., B.C., N.W.T.
Discussion
Subspecies maccallae and porsildii share the large flowers, high percentage of abortive fruits, and leaf margins mostly entire, but they differ in indumentum and habitats.
Selected References
None.
Lower Taxa
None.