Amaranthus graecizans, L.

Hassan, Walaa A., Al-Shaye, Najla A. & Iamonico, Duilio, 2023, A critical inventory of the family Amaranthaceae s. str. in Saudi Arabia, Phytotaxa 626 (4), pp. 223-246 : 233

4.7. Amaranthus graecizans L., Sp. Pl. 2: 990. 1753.

Lectotype (designated by Fernald 1945: 139):—Herb. Clayton No. 442 (BM000051563!, image of the lectotype available at https://data. nhm.ac.uk/object/ca635ca9-9252-42a3-9082-60ec097bc2d6/1641427200000).

= Amaranthus angustifolius Lam., Encycl. [J. Lamarck & al.] 1: 115. 1783, nom. illeg. Art. 52.2 of the ICN ( Turland et al. 2018).

Chorology:― Amaranthus graecizans s.l. is native to Europe, Central and Western Asia, and Northern Africa and considered as introduced in some European countries, North America, South Africa, and Australia ( Iamonico 2015a). It is native in Saudi Arabia ( Hassan et al. 2022).

At subspecific rank two main distribution areas can be highlighted, one ranging from Central to southern Europe plus North Africa [ subsp. graecizans and subsp. sylvestris (Vill.) Brenan ], the second one in eastern Europe ( Russia and adjacent territories) plus Central and southern Asia [ subsp. aschersonianus (Thell.) Costea and subsp. thellungianus (Nevski) Gusev ] (see Iamonico 2015a: 34).