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Pakistan | Family List | Alismataceae | Sagittaria

Sagittaria guayanensis ssp. lappula (D. Don) Bogin in Mem. N.Y. Bot. Gard. 9: 192. fig. 5 c. 1955. Hartog in Steenis, Fl. Males. ser. 1, 5: 328. fig.9.1957; F.N. Hepper in Hutch & Dalz., Fl. W. Trop. Afr. 3: 11. 1968; Dandy in Rech. f., Fl. Iran. 78: 2. t. 1. 1971.

Sagittaria guayanensis ssp. lappula

Credit: Shaukat

  • Lophiocarpus guayanensis (Kunth) M. Micheli
  • Lophiocarpus lappula (D. Don) Miq.
  • Lophotocarpus guayanensis var. lappula (D. Don) Buchen.
  • Sagittaria blumei Kunth
  • Sagittaria cordifolia Roxb.
  • Sagittaria lappula D. Don
  • Sagittaria obtusissima Hassk.

    Aquatic or semi-aquatic herb with floating leaves. Leaves 5-7 cm long, 6-8 cm broad, glabrous; petiole up to 34 cm long, sulcate, minutely hairy. Inflorescence an unbranched scapose raceme, up to 45 cm long, minutely hairy towards apex. Flowers in 2-6 whorls of 2-3 flowers each, lower whorls with bisexual, upper ones with male flowers, c. 1.5 cm across, white; pedicel stout, 1-2 cm long, thickened and elongated up to 3.5 cm in fruit; bracts elliptic, 8-15 mm long, obtuse with membranous margins. Sepals ovate-elliptic, 8-10 mm long, 6-9 mm broad, acute. Petals obovate-suborbicular, yellow-spotted at the base, larger than the sepals. Stamens with c. 2-3 mm long, papillate filaments. Head of achenes c. 1 cm across, achenes flat, elliptic, 3-4 mm long, with distinctly blunt toothed dorsal wing.

    Fl. Per.: August-November.

    Type: Described from Nepal, Buchanan-Hamilton (BM).

    Distribution: Tropical Africa and tropical and subtropical Asia.


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