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: NL (Newfoundland), QC, ON, and MN south to n. NJ, PA, n. OH, n. IN, and s. WI, and in the mountains to sw. NC, e. TN, nw. SC, and ne. GA.

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 — 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