Persicaria lapathifolia
Persicaria lapathifolia
Tirşon
Syn: Polygonum lapahtifolium
Tall annual. Stems ascending to erect, branched. Ochreae brownish, entire. Leaves lanceolate to very narrowly elliptic, cuneate at the base, often with a blackish spot, usually glabrous, and always with pellucid, yellowish glands beneath. Inflorescence a dense, stout, oblong spike. Peduncles with subsessile yellow glands. Flowers usually pink. Perianth c.2 mm. Nut dark brown and glossy, included in the perianth. FI. 8-9. Marshes and near streams, s.I.-1500 m.
Europe, N.W. Africa, S.W. Asia.