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Nassella viridula
Also called Feather Bunchgrass, Green Nassella, Green Tussockgrass
Nassella viridula is a species of grass known by the common name green needlegrass. It is native to North America, where it is widespread in western Canada and the western and central United States. It is introduced in parts of eastern North America.
This grass forms tufts of stems up to about 1.2 meters tall. It grows from a fibrous root network which may penetrate over 1.5 meters deep in the soil. The leaves are mostly basal. Each is up to 30 centimeters long and tapers to a threadlike tip. The spikelets have awns reaching nearly 4 centimeters long, each bent twice. The plant reproduces via seed and by tillering. The seeds may be dormant for a period of time and may require stratification to germinate.
Nodding needlegrass · Lobed Needle Grass · Nassella ibarrensis · Foothill needlegrass · Texas wintergrass · Nassella mexicana · Purple needlegrass · Finestem needlegrass · Serrated tussock · Needlegrass
Text excerpted from the Wikipedia article Nassella viridula by its contributors, under CC BY-SA 4.0; the excerpts are shared under the same licence.
Life form, climate and native range: World Checklist of Vascular Plants, Royal Botanic Gardens, Kew (CC BY 3.0), reformatted; see Plants of the World Online.
