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Pakistan | Family List | Poaceae

Cynodon Rich. in Pers., Syn. Pl. 1:85. 1805. Boiss., Fl. Or. 5:553. 1884; Hook.f., Fl. Brit. Ind. 7:288. 1896; Bor, Fl. Assam 5:125. 1940; Sultan & Stewart, Grasses W. Pak. 2:273. 1959; Bor, Grasses Burma Ceyl. Ind. Pak. 468. 1960; Bor in Towns., Guest & Al-Rawi, Fl. Iraq 9:454. 1968; Bor in Rech.f., Fl. Iran. 70: 450. 1970; DeWet & Harlan in Taxon 19: 565. 1970; Lazarides in Aust. J. Bot. Suppl. 5:35. 1972; Tzvelev, Poaceae URSS 642.1976; Tutin in Tutin et al., Fl. Eur. 5:259. 1980; nom. conserv.

Rhizomatous or stoloniferous perennials, usually low-growing, often sward-forming. Leaf-blades linear and flat, sometimes filiform or lanceolate; ligule membranous, often ciliate on the upper edge. Inflorescence of digitate 1-sided spikes which are sometimes borne in 2 or more closely spaced whorls. Spikelets narrowly ovate, 1-flowered, with or without a rhachilla extension (this very rarely bearing a tiny vestigial floret), strongly laterally compressed, imbricate in 2 rows, awnless; glumes 2, narrow, subequal, shorter than the floret, 1-nerved (rarely the upper 3 nerved); lemma narrowly ovate in side view, more or less ciliate on the keel and often also on the side nerves, usually glabrous on the flanks, its callus glabrous. Caryopsis ellipsoid, laterally compressed.

A genus of 8 species in tropical and warm temperate regions; represented locally by 2 species.


1 Racemes usually 4-6, up to 7 cm long; plant rhizomatous; leaf-auricles and orifices usually bearded; ligule a short scarious, ciliolate rim; hairs on lemma not clavate; anthers more than 1 mm long   Cynodon dactylon
+ Racemes more numerous and longer, up to 10 cm long, flexuous; plant not rhizomatous; leaf-auricles and orifices glabrous or pilose but not bearded; ligule membranous, ciliolate on the upper edge; hairs on lemma usually clavate; anthers about 0.5 mm long   Cynodon arcuatus

Lower Taxa

Related Synonym(s):


 

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