Agrostis hyemalis ticklegrass Poaceae AGHY; Bx, pb (DeCandido 2001); Q, cu, j; R, e, pr, v;

 

Agrostis_hyemalis_i. copyright S. I. Hatch & J. E. Dawson. Center for the Study of Digital Libraries. Texas A&M University. botany.csdt.tamu.edu

Agrostis_hyemalis_i. copyright S. I. Hatch & J. E. Dawson. Center for the Study of Digital Libraries. Texas A&M University. botany.csdt.tamu.edu (Accessed 7?2017).

Agrostis hyemalis is a perennial, C3 grass (Waller and Lewis 1979), 30-90 cm tall, tufted. 

Leaves alternate, small, below middle of stem, mostly basal, 0.1-0.2 cm wide, erect, narrow, often rolled inward; ligule about 0.2 cm. 

Agrostis hyemalis. By Anna Gardner. Copyright © 2017. Ada Hayden Herbarium - Iowa State U. (Accessed 7/2017).

Agrostis hyemalis. By Anna Gardner. Copyright © 2017. Ada Hayden Herbarium – Iowa State U. (Accessed 7/2017).

Flower spikelets 1-flowered, about 0.2-0.3 cm long, shiny, in small dense clusters at ends of branches; inflorescence purplish, diffuse, open, wide spreading, often half as long as plant; branches wiry, rough textured, branching again near ends; blooming and fruiting May-June; stems break off, dispersing seeds like tumble weed. 

Wetland status: FAC. 

Frequency in NYC: Infrequent. 

Origin: Native. 

Habitat: Open areas, burns, open fill, soil pH 5-7.5, tolerant of anaerobic soils and fire; moderately tolerant of salt and shade; intolerant of drought (USDA, NRCS 2006). 

Notes: Often infected with symbiotic endophytic fungi Acremonium sp. and/or Epichloë amarillans (Clavicipitaceae), (Clay and Leuchtmann 1989; Schardl and Leuchtmann 1999).