Eurasian Junegrass (Koeleria asiatica)
Description
HABIT Perennial; caespitose; clumped loosely. Rhizomes elongated. Culms erect; 14-30 cm long. Culm-internodes distally glabrous, or pubescent. Leaf-sheaths glabrous on surface, or puberulous. Ligule an eciliate membrane; 0.5-1 mm long. Leaf-blades conduplicate; 1-2.5 mm wide. Leaf-blade surface smooth, or scaberulous; glabrous, or puberulous.INFLORESCENCE Inflorescence a panicle.Panicle spiciform; linear; 2-4 cm long. Panicle axis pubescent. Panicle branches pubescent.Spikelets solitary. Fertile spikelets pedicelled.FERTILE SPIKELETS Spikelets comprising 2 fertile florets; with a barren rhachilla extension. Spikelets oblong; laterally compressed; 3.7-5.5 mm long; breaking up at maturity; disarticulating below each fertile floret. Rhachilla internodes pubescent.GLUMES Glumes persistent; similar; shorter than spikelet; similar to fertile lemma in texture; shiny. Lower glume lanceolate; 2.7-4.1 mm long; 0.75-0.85 length of upper glume; membranous; 1-keeled; 1 -veined. Lower glume lateral veins absent. Lower glume surface glabrous, or pubescent. Lower glume apex attenuate. Upper glume lanceolate; 3.4-4.8 mm long; 0.9 length of adjacent fertile lemma; membranous; 1-keeled; 3 -veined. Upper glume surface glabrous, or pubescent. Upper glume apex attenuate.FLORETS Fertile lemma oblong; 3.7-5.5 mm long; membranous; shiny; keeled; 5 -veined. Lemma surface pubescent. Lemma apex acute; muticous, or mucronate. Palea gaping; 1 length of lemma.
Taxonomic tree
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Domain: Eukarya
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Kingdom: Plantae
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Phylum: Magnoliophyta
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Class: Liliopsida
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Order: Poales
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Family: Poaceae
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Genus: Koeleria
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