subgenusAtriplex subg. Obione
Atriplex subg. Obione
Rhodora 102: 418. 2001.
Basionym: Undefined subg. Obione Gaertner Fruct. Sem. Pl. 2: 198, plate 126. 1791
Synonyms: Atriplex sect. Obione (Gaertner) Reichenbach
Treatment appears in FNA Volume 4. Mentioned on page 324, 326, 327, 328.
Plants annual or perennial, monoecious to subdioecious or less commonly dioecious. Leaves usually with or, uncommonly, without Kranz anatomy. Staminate flowers with calyx lobes crested or not. Pistillate flowers lacking or rarely with a perianth (in A. covillei, A. pleiantha, and A. suckleyi), enclosed by a pair of bracteoles. Bracteoles cuneate to ovate or obovate united at least to middle, faces with tubercles or crests or smooth. Seeds erect; radicle typically superior (except in A. pleiantha), erect, tip adjacent to styles.
Mainly w North America, also Old World.
Species ca. 33 (27 in the flora).
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