


Pennisetum latifolium Spreng.

Details
Nomenclature
Spreng.
Spreng.
1824
ICN
Pennisetum latifolium Spreng.
species
Pennisetum latifolium
Classification
Vernacular names
Descriptions
Pennisetum latifolium Spreng.
Tall, erect, tufted, bright green, shortly rhizomatous perennials, the stout (c. 2 cm diam.), short internodes of the rhizome giving a corm-like appearance to base of culm. Leaf-sheath loosely enveloping culm, rounded, subcoriaceous, with numerous usually conspicuous cross-veinlets, lowermost sheaths with a few scattered long hairs, others glabrous. Ligule 2-5.5 mm, a membranous densely long-ciliate rim. Leaf-blade 30-50 cm × 1-3.5 mm, flat, lanceolate, tapering to long fine point, narrowed, almost pseudopetiolate at base, ribs and margins minutely scabrid. Culm c. 2-2.5 m, nodes purplish, appressed-pubescent, internodes glabrous. Panicle 17-30 cm, compound, with clusters of 3-4 long-peduncled spikes arising in axils of 3-4 short, reduced leaves. Spikes 3-6.5 cm; rachis minutely pubescent; peduncles (5)-12-25 cm, triangular-compressed, with strongly pubescent-scabrid ridges. Spikelets 6-7 mm, elliptic-lanceolate, acuminate, densely clustered and ± sessile on rachis, surrounded by involucre of numerous finely scabrid bristles, usually one stouter, » spikelet (10-17 mm), others usually < spikelet (5-7 mm). Glumes very short, hyaline, with long appressed hairs, margins long-ciliate near acute tip; lower 0.5-1 mm, upper 1-2 mm, 1-nerved. Lower floret Ø: lemma = spikelet, 5-nerved, submembranous, minutely pubescent-scabrid; palea 0. Upper floret ☿: lemma ≈ spikelet, 5-6 mm, 5-nerved, very slightly hardened, glabrous below, finely minutely pubescent-scabrid near tip; palea 4.5-5 mm, of same texture as lemma, rounded, nerves 2, glabrous; lodicules 0.4-0.7 mm; anthers 1.4-2 mm; gynoecium: ovary c. 1 mm, styles free, glabrous, c. 1.5 mm, stigmas purple, plumose, c. 2.5 mm; caryopsis 1.7-2.3 mm.
Taxonomic concepts
Pennisetum latifolium Spreng.
Pennisetum latifolium Spreng.
Pennisetum latifolium Spreng.
Pennisetum latifolium Spreng.
Collections
Metadata
cc67e13e-aa85-4431-98a2-1548ec0bcefd
scientific name
Names_Plants
1 January 2000
31 August 2011