Polygonaceae

Polygonum aviculare

Polygonum L. Polygonum aviculare L. Ömür: Tek yıllık Yapı: ot Hayat formu: İlk çiçeklenme zamanı: 7 Son çiçeklenme zamanı: 11 Habitat: çorak yerler Minimum yükseklik: 0 Maksimum yükseklik: 700 Endemik: - Element: Kozmopolit Türkiye dağılımı: K., B., G. ve GD. Anadolu Genel dağılımı: Yaygın Bulunduğu kareler :A1 A2 A3 A4 A7 C3 C6 C7 C8

P. aviculare L., Sp. PL 362 (1753). Syn: P. heterophylliim Lindman in Svensk Bot. Tidskr. 6: 690 (1912). Differs from P. arenastrum in being often erect, the perianth tube very short, and the nut 2.5-3 mm.Fl 7-11.Waste places,s.l-700 m. Described from Europe (Hb. Linn. 510/23 photo!). A1(E) Tekirdağ: Tekirdağ, Stojanov. A2(A) Kocaeli: Pendik to Dolaiba, 1 ix 1896, Azn.! A3 Bolu: Ala Da., 700 m, Khan et al. 522! A4 Kastamonu: Inebolu, S.I., D. 38503! A7 Trabzon: Trabzon, Hand.-Mazz. 152. C3 Antalya: Antalya, 30 m, Tengwall All C6 Hatay: Amanus, Egbez, 500-650 m, Haradj. 598. C7 Adi-yaman: Bekikara, between Kahta & Malatya, Hand.-Mazz. 2444. C8 Diyarbakir: Diyarbakır, 700 m, Brown 3247! Cosmopolitan weed. This and the previous 2 species form part of a complex usually known as the P. aviculare agg. This complex has been much studied in Europe (cf. Flora Europaea 1: 78-79, 1964 for the most modern treatment). We have found it very difficult to apply the European treatments to the Turkish material - correlations found in European specimens apparently break down in those from Turkey. We have maintained 3 species as a basis for further study, and have distinguished them by the most convenient characters, but we must stress that, at least in the case of arenastrum & aviculare, the resulting taxa are not very homogeneous. The Turkish material is rather scanty, due, presumably to collectors avoiding so-called 'common weeds'. More specimens are necessary before the relationship between the Turkish & European taxa can be established. For most purposes identification to P. aviculare agg. is quite sufficient.