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Psammogeton biternatum Edgew. in Trans. Linn. Soc. 20:57. 1847. Clarke in Hook. f., l.c.
Psammogeton canescens ssp. biternatus (Edgew.) Wag.
Plants 5-40 cm tall. Stem glabrous; lower branches decumbent. Leaves pinnatisect; segments cuneate. Involucre of 5-7 linear, glabrous to pubescent bracts. Rays 5-12, up to 3 cm long, glabrous. Involucel of 5-7 lanceolate to oval, broadly white margined bractlets, surface glabrous, margin ciliate, apex acute to acuminate. Petals white to rose coloured. Fruit ovoid, c. 1 mm long, densely hairy; hairs white, 1-1.5 mm long, glochidiate; 1 vitta under each secondary ridge.
Type: N.W. India, Ambala, Edgeworth 167 (K).
Distribution: India, W. Pakistan.
A common desert species growing in dry sandy places in the plains and the foothills during the spring season.
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