Nassella tenuissima (Trin.) Barkworth
Show more
Details
Nassella tenuissima (Trin.) Barkworth (1990)
Nassella tenuissima (Trin.) Barkworth
Nomenclature
Classification
Vernacular names
Synonyms
Descriptions
Nassella tenuissima (Trin.) Barkworth
Erect bright green perennial tussock with very narrow rolled leaves in slender shoots white at base, below a long narrow panicle with long fine intertwining awns; branching intravaginal and at nodes. Leaf-sheath to 10 cm, scabrid as leaf-blades, margins ciliate. Prophyll to 10 cm, hairy. Ligule 2.5 mm, becoming acute, minutely prickle-toothed. Leaf-blade to 60 cm × 0.3 mm diam., terete, abaxially beset with small antrorse prickles, adaxially and on margins very finely short hairy. Culm to 1 m, internodes hairy especially below nodes, antrorsely prickle-toothed elsewhere; nodes ± geniculate. Panicle to 30 cm, contracted, much branched; rachis, branches and pedicels finely stiff hairy often densely so. Glumes unequal, violet below, hyaline above, keels sparsely finely toothed, produced to awn-like processes to 5 mm; lower to 8 mm, upper to 6 mm. Lemma 2 mm, cylindrical, slightly compressed, finely tuberculate, median nerve with long hairs, lobes minute; corona 0.4 mm, spines to 0.2 mm; awn to 50 mm, very fine (0.1 mm), weakly 2-geniculate, column lacking. Palea 0.75-1 mm, membranous, glabrous. Callus 0.2 mm, hairs to 1 mm. Lodicules 2, 0.4 mm. Anthers to 2.5 mm in chasmogamous flowers, 1 fertile anther to 0.5 mm and 2 rudimentary anthers to 0.2 mm in cleistogamous flowers. Gynoecium: ovary 0.6 mm; stigma-styles to 1.25 mm.
Taxonomic concepts
Nassella tenuissima (Trin.) Barkworth
Nassella tenuissima (Trin.) Barkworth
Nassella tenuissima (Trin.) Barkworth
Nassella tenuissima (Trin.) Barkworth
Nassella tenuissima (Trin.) Barkworth
Nassella tenuissima (Trin.) Barkworth
Nassella tenuissima (Trin.) Barkworth
Nassella tenuissima (Trin.) Barkworth
Nassella tenuissima (Trin.) Barkworth
Nassella tenuissima (Trin.) Barkworth
Nassella tenuissima (Trin.) Barkworth
Stipa tenuissima Trin.
Nassella tenuissima (Trin.) Barkworth
Collections
Metadata
823c3158-1b6b-4705-908f-cc038c029c94
scientific name
Names_Plants
1 January 2000
3 June 2008