Flora of the Southeastern United States

Brachyelytrum aristosum (Michaux) Palisot de Beauvois ex Trelease. Common name: Northern Shorthusk. Phenology: Jul-Aug. Habitat: Moist forests, mostly at moderate to high elevations, such as northern hardwoods and spruce-fir. Distribution: Newfoundland and Labrador (Newfoundland), Québec, Ontario, and Minnesota south to n. New Jersey, Pennsylvania, n. Ohio, n. Indiana, and s. Wisconsin, and in the mountains to sw. North Carolina, e. Tennessee, nw. South Carolina, and ne. Georgia.

ID notes: In MI, B. aristosum flowers about 10 days before co-occurring B. erectum, with strongly synchronized anthesis of each species occurring on a single day (Stephenson 1971). Reputed intermediates and hybrids between the two taxa are apparently based on the use of ambiguous characters.

Origin/Endemic status: Native

Synonymy ⓘ: = Can, FNA24, K4, Mi, NE, NS, NY, Pa, POWO, Tn, Va, Saarela et al (2003); = Brachyelytrum erectum (Schreb.) P.Beauv. var. glabratum (Vasey ex Millsp.) Koyama & Kawano — C; = Brachyelytrum erectum (Schreb.) P.Beauv. var. septentrionale Babel — F; = Brachyelytrum septentrionale (Babel) G.C.Tucker — K1, Tucker (1988); > Brachyelytrum aristosum (Michx.) P.Beauv. ex Trel. var. glabratum Vasey — WV; < Brachyelytrum erectum (Schreb.) P.Beauv. — G, HC, RAB, S, S13, W. Basionym: Dilepyrum aristosum Michx. 1803

Links to other floras: = Brachyelytrum aristosum - FNA24

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Wetland Indicator Status:

• Eastern Mountains and Piedmont: FACU (taxonomic split from wetland indicator species)
• Great Plains: FACU (taxonomic split from wetland indicator species)
• Midwest: FACU (taxonomic split from wetland indicator species)
• Northcentral & Northeast: FACU (taxonomic split from wetland indicator species)

Heliophily ⓘ: 2