| Section 5 » Family Poaceae |
Show/Hide Synonym
| taxonName | relationship | relatedTaxonName | relatedTaxonRefText | relComments |
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| Avenella flexuosa | = | Deschampsia flexuosa | Gleason and Cronquist (1991) | | | Avenella flexuosa | = | Deschampsia flexuosa | Flora of North America (1993b, 1997, 2000, 2002a, 2002b, 2003a, 2004b, 2005, 2006a, 2006b, 2006c, 2007a, 2009, 2010) | | | Avenella flexuosa | = | Deschampsia flexuosa | Gleason (1952) | | | Avenella flexuosa | = | Deschampsia flexuosa | Hitchcock & Chase (Manual of US Grasses) | | | Avenella flexuosa | = | Deschampsia flexuosa | | | | Avenella flexuosa | = | Deschampsia flexuosa | Radford, Ahles, and Bell (1968) | | | Avenella flexuosa | = | Deschampsia flexuosa | | | | Avenella flexuosa | = | Deschampsia flexuosa | Wofford (1989) | | | Avenella flexuosa | = | Deschampsia flexuosa | Flora of West Virginia | | | Avenella flexuosa | = | Deschampsia flexuosa | | | | Avenella flexuosa | > | Deschampsia flexuosa var. flexuosa | Fernald (1950) | | | Avenella flexuosa | > | Deschampsia flexuosa var. flexuosa | Kartesz (1999) | | | Avenella flexuosa | = | Aira flexuosa | Small (1933, 1938) | | | Source: Weakley's Flora |
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| Author | (L.) Drejer | |
| Distribution | Mountains and northern upper Piedmont; disjunct to the mid-southern and lower Piedmont, with a seemingly real gap in the central Piedmont.
Circumboreal/temperate, in North America south to northern GA, OH, and MN; disjunct in AR, OK, and Mex. | |
| Abundance | Frequent in the Mountains and upper Piedmont; uncommon in the lower Piedmont, and very rare (if present) in most central Piedmont counties. Where found, plants may be uncommon to dominant. | |
| Habitat | Dry rock ledges, cliff faces and crests, grassy balds, in open or under deciduous canopy. Lower Piedmont occurrences are almost always on north-facing ledges flanking brownwater rivers. | |
| Phenology | Flowering and fruiting April-August. | |
| Identification | The plants form clumps of moderate size (sometimes large) tussocks of spreading/arching, strongly inrolled, leaves 0.5 to 1.5 feet long; the leaves are surmounted by erect stems up to 2.5 feet high with very open, airy inflorescences. In dense populations, plants cascade down rocky slopes. | |
| Taxonomic Comments | Long known by the name Deschampsia flexuosa.
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| Other Common Name(s) | Common Hairgrass, Appalachian Hairgrass, Crinkled Hairgrass | |
| State Rank | S3 | |
| Global Rank | G5 | |
| State Status | | |
| US Status | | |
| USACE-agcp | | |
| USACE-emp | | |
