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Pakistan | Family List | Poaceae

Hyparrhenia Anderss. ex Fourn., Mex. Pl. 2:51. 1886. Bor, Fl. Assam 5:392. 1940; Sultan & Stewart, Grasses W. Pak. 1:118. 1958; Bor, Grasses Burma Ceyl. Ind. Pak. 166. 1960; Bor in Towns., Guest & Al-Rawi, Fl. Iraq 9:530. 1968; Clayton in Kew Bull., Addit. Ser. 2. 1969; Bor in Rech. f., Fl. Iran. 70:545. 1970; Clayton in Tutin et al., Fl. Eur. 5:266. 1980.

Tall annuals or perennials. Leaf-blades linear, never aromatic; ligule scarious. Inflorescence composed of paired racemes, each pair supported on a peduncle and subtended by a sheathing spatheole, the latter crowded into a large leafy false panicle; racemes short, slender, each borne upon a short stalk (raceme-base) which is often deflexed at maturity, and with up to 2 of the lower most spikelet pairs (homogamous pairs) male or barren, awnless and tardily deciduous; internodes and pedicels linear. Sessile spikelet narrowly lanceolate to lanceolate–oblong, dorsally compressed or terete; callus obtuse to pungent, applied obliquely to the top of the internode with its tip free; lower glume coriaceous, broadly convex across the back and sides. without keels or these developed only in the uppermost third; upper glume awnless; lower floret reduced to a hyaline lemma, upper lemma stipitiform, bidentate, passing between the teeth into a stout awn with pubescent or hirtellous column, palea minute or absent. Caryopsis oblong, subterete. Pedicelled spikelet male or barren, narrowly lanceolate, usually a little longer than the sessile, awnless or aristulate from the lower glume.

A genus of 53 species mainly in Africa, but a few species extending to other tropical or warm temperate regions; only 1 species is found in Pakistan.

Lower Taxon

Related Synonym(s):


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Flora of China  
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