Polygonaceae

P. arenastrum Bor., FI. Centr. Fr. ed. 3, 2:559 (1857). Syn: P. aequale Lindm. in Sv. Bot. Tidskr. 6: 692 (1912); P. aviculare subsp. aequale (Lindm.) Asch. & Graebn., Syn. 4: 848 (1913).
Annual herb. Stems usually procumbent or prostrate, mat-forming. Ochreae much shorter than the internodes, brownish-based, with faint nerves. Leaves elliptic. Flowers borne in fascicles in the axils of the upper leaves. Perianth less than 3 mm, pinkish or white, divided into lobes for about 1/2 its length. Nut dull, 1.5-2 mm, not or scarcely exserted from the perianth. Fl. 6-11. Roadsides, waste places, slopes, etc., s.1.-2300 m.
Type: none designated.
A2(E) Istanbul: Kiathane, 25 v 1917, Azn! A2(A) Kocaeli: Pendik to Dolaiba, 1 ix 1896, Azn.! A3 Bolu: Adapazari to Bolu, 300 m, McNeill 236! A4 Ankara: nr. Keçiören, D. 13174! A8 Trabzon: Soğanli Pass, 1300 m, Furse 3983! Bl Izmir: Izmir, Ball! B7 Malatya: Gürün to Malatya, 1400 m, McNeill 646! C4 Antalya: Ak Da., S of Geyik Da., 2300 m, D. 14360! C4 Konya: Küçük Köy, 980 m, Helbaek 2683! C5 Niğde: Bulgar Maaden, Bal.! Is: Khios, Platt!
Exact distribution unknown, probably throughout Europe. See observations under P. aviculare.