Deschampsia cespitosa (L.) P.Beauv.
Show more
Details
Deschampsia cespitosa (L.) P.Beauv., Ess. Agrostogr. 91, t. 18, fig. 3 (1812)
Deschampsia cespitosa (L.) P.Beauv.
Nomenclature
(L.) P.Beauv.
L.
P.Beauv.
1812
91, t. 18, fig. 3
caespitosa
ICN
species
Deschampsia cespitosa
Classification
Subordinates
Vernacular names
Synonyms
Descriptions
Deschampsia cespitosa (L.) P.Beauv.
2n = 26
2n = 26
Deschampsia cespitosa (L.) P.Beauv.
Stiff, yellow-green, sometimes bluish green leafy tufts or strong tussocks, 30-120 cm, with rigid panicles on erect culms often well overtopping leaves. Leaf-sheath subcoriaceous, keeled, glabrous, faintly ribbed. Ligule 2.5-7 mm, striate, sometimes almost keeled, acute. Leaf-blade (3)-5-45 cm × 2-3.5 mm, flat, stiff, sometimes folded or inrolled, abaxially smooth and shining, adaxially ribbed, ribs scabrid, tip acute, subpungent. Culm erect, or slightly geniculate at base, internodes glabrous. Panicle (3)-10-30 cm, ± erect, lax at anthesis, bearing spikelets near branchlet tips, later more contracted; rachis and branches sparsely to moderately, finely scabrid. Spikelets (3.5)-4-7 mm, yellow-green to brownish or purplish. Glumes ± equal, slightly overtopping or equalling florets, rarely overtopped by florets in 3-flowered spikelets, acute, keel often very sparsely scabrid; lower 1-nerved, upper 3-nerved. Lemma (2.3)-3-5 mm, oblong, often sparsely scabrid above, apex 4-toothed, margins in upper ½ finely scabrid; awn (0.5)-1-4 mm, fine, straight, minutely scabrid, insertion middorsal or ± basal or rarely in upper ⅓, slightly overtopping or ± reaching lemma apex, occasionally ± appressed to lemma and not reaching apex. Palea narrower than lemma, apex bifid, keels and margins in upper ½ finely scabrid. Callus hairs to 1.5 mm. Rachilla hairs to 2 mm, dense, silky. Anthers (0.8)-1.2-2.2 mm. Gynoecium: ovary c. 0.8 mm; stigma-styles c. 1.5 mm. Caryopsis 1.2-1.6 × 0.4-0.7 mm. 2n= 26.
Taxonomic concepts
Aira australis Raoul
Deschampsia cespitosa (L.) P.Beauv.
Aira cespitosa L.
Deschampsia cespitosa (L.) P.Beauv.
Deschampsia cespitosa (L.) P.Beauv.
Deschampsia cespitosa (L.) P.Beauv.
Deschampsia cespitosa (L.) P.Beauv.
Deschampsia cespitosa (L.) P.Beauv.
Deschampsia cespitosa (L.) P.Beauv.
Deschampsia cespitosa (L.) P.Beauv.
Deschampsia cespitosa (L.) P.Beauv.
Deschampsia cespitosa (L.) P.Beauv.
Deschampsia cespitosa (L.) P.Beauv.
Deschampsia cespitosa (L.) P.Beauv.
Deschampsia cespitosa (L.) P.Beauv.
Deschampsia cespitosa (L.) P.Beauv.
Deschampsia cespitosa (L.) P.Beauv.
Deschampsia cespitosa (L.) P.Beauv.
Deschampsia cespitosa (L.) P.Beauv.
Deschampsia cespitosa (L.) P.Beauv.
Deschampsia cespitosa var. macrantha Hack.
Deschampsia cespitosa (L.) P.Beauv.
Deschampsia penicillata Kirk
Deschampsia cespitosa (L.) P.Beauv.
Collections
Metadata
ee30434a-a2cb-4ac4-bbd6-af13d3c92c00
scientific name
Names_Plants
1 January 2000
18 July 2006