Festuca occidentalis
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Festuca occidentalis is a species of grass known as western fescue. It is native to much of the northern half of North America and is most widely distributed in the west. It is most often found in forest and woodland habitat. The specific epithet occidentalis is Latin, meaning "western".
Description
Festuca occidentalis is a tufted fescue that lacks rhizomes. The smooth and shiny culms are Script error: No such module "convert". tall. Culms have two exposed nodes and have glabrous internodes. The shoots are intravaginal.
The leaf sheaths are glabrescent and rounded with a prominent midvein. The position of the auricle is marked by a distinct swelling. The minutely erose ligule is Script error: No such module "convert". long. The basal leaves are capillary and Script error: No such module "convert". long. In cross section, the leaf blades are Script error: No such module "convert". wide and Script error: No such module "convert". thick, with three large veins and one to five ribs. The basal offshoots are erect, arising from the tops of the pale brown sheaths.
The lax, subsecund, flexuous panicle is Script error: No such module "convert". long. The panicle has two unequal and strongly reflexed branches at the lower node, with branches Script error: No such module "convert". long bearing minute trichomes. The three to five flowered spikelets are Script error: No such module "convert". long. The rachilla is visible at anthesis and internodes are Script error: No such module "convert". long. The unequal glumes are narrow and acute. The lower glume is Script error: No such module "convert". long with one vein, and the upper glume is Script error: No such module "convert". long with one to two veins. The membranaceous, oblong to lanceolate lemmas are Script error: No such module "convert". long, with slender, flexuous awns Script error: No such module "convert". long. Paleas have inflexed sides that meet in the middle, measuring Script error: No such module "convert". long. Lodicules are toothed and lack trichomes. Anthers are Script error: No such module "convert". long. The ovary is pubescent at its apex.[1][2]
It flowers from late June into July.
Distribution and habitat
Festuca occidentalis occurs in the northern United States from the Bruce Peninsula to northern Michigan and eastern Wisconsin, and from Montreal and British Columbia south to Wyoming and California.[1]
It grows in dry to moist woods, thickets, and rocky slopes. It grows up to Script error: No such module "convert". in elevation.[3]
References
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