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4. Typha elephantina Roxb., Fl. Ind. 3:566. 1832. Hook. f., Fl. Brit. Ind. 4: 489. 1894; Fedtsch. in Komarov, l.c. 167.; Riedl in Rech. f., l.c. 4; R.R. Stewart in Nasir & Ali, l.c. 28; Lewis in Hara et al., Enum. Fl. Pl. Nep. 1: 87. 1978.
SAOOD OMER & RIZWAN Y. HASHMI
Perennial 1.5-4.0 m tall. Leaves linear or broadly linear; trigonous above the sheath, angularly keeled dorsally, 3-angled; lamina 25-40 mm broad. Upper part flat, about as long as inflorescence; male and female parts separate; axis of the male spike covered with hairs; female spike cylindric, blackish brown or brown; pistillodes present; female flowers bracteate; stigma lanceolate, bracts spathulate and longer than the hairs.
Fl. Per.: March-August.
Type: Described from Bengal-Hogla.
Distribution: Africa, Asia (Bangladesh, India, Nepal, Pakistan, Iran and Turcomania).
This species can easily be distinguished from the others by the angular keeled leaf sheath.
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