Polygonum L. >

Stipules deeply cut, silvery to white Polygonum
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Leaves oblong-lanceolate or elliptic, 1–4 cm long; lateral veins conspicuous underneath. Nut dull. Stems up to 1 m long
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Perianth tube very short. Perianth 2–4 mm long. Leaves up to 50 mm long, those on the main stem much larger than those on the lateral stems. Widespread. Weed of cultivation and waste places. Fl. most of the year. Cosmop.. Wire Weed or Hog Weed Polygonum aviculare