Atriplex subg. Obione

(Gaertner) S. L. Welsh

Rhodora 102: 418. 2001

Basionyms: 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.

Distribution

Mainly w North America, also Old World.

Discussion

Species ca. 33 (27 in the flora).

References

None.