Avenella flexuosa foliosa

(Avenella flexuosa foliosa)

galery

Description

Perennial; caespitose. Culms erect; slender; 5-30 cm long. Culm-internodes elliptical in section; smooth. Leaves distichous. Ligule an eciliate membrane; 4-7 mm long; acute. Leaf-blades filiform; conduplicate; 5-5 cm long; 0.6- mm wide; mid-green. Leaf-blade surface scabrous; rough adaxially. Leaf-blade margins smooth. Leaf-blade apex attenuate. Inflorescence a panicle. Panicle open; ovate; loose; 4-9 cm long; -5 cm wide. Primary panicle branches ascending. Panicle branches scaberulous. Spikelets solitary. Fertile spikelets pedicelled. Pedicels filiform. Spikelets comprising fertile florets; with a barren rhachilla extension. Spikelets lanceolate, or oblong; laterally compressed; 3.5-6 mm long; breaking up at maturity; disarticulating above glumes but not between florets. Rhachilla internodes definite; pubescent. Floret callus pilose. Fertile lemma oblong; .5-4 mm long; membranous; shiny; without keel; 4 -veined. Lemma apex dentate; 4 -fid; with outer lobes longer; truncate; awned; -awned. Principal lemma awn dorsal; arising 0.-0. way up back of lemma; straight, or geniculate; 3-7 mm long overall; without a column, or with twisted column. Rhachilla extension 0.5 length of fertile floret; pilose.

Taxonomic tree:

Domain:
Kingdom: Plantae
Phylum:
Class: Liliopsida
Order:Poales
Family:Poaceae
Genus:Avenella
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