familyChenopodiaceae
genusAtriplex
subgenusAtriplex subg. Obione
sectionAtriplex sect. Obione
subsectionAtriplex subsect. Wolfianae
speciesAtriplex wolfii
Show Lower Taxa
Difference between revisions of "Atriplex wolfii"
Proc. Amer. Acad. Arts 9: 112. 1874.
Common names: Slender orach
Endemic
Synonyms: Obione wolfii (S. Watson) Ulbrich
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Latest revision as of 17:02, 6 November 2020
Herbs, slender, delicate. Stems simple or more commonly branched throughout, mainly 0.7–3.5 dm, branches terete; herbage scurfy. Leaves: blade concolorous, linear to narrowly lanceolate, mainly 4–25 × 1–3 mm. Flowers very small, both sexes in the same sessile, axillary clusters. Staminate flowers: sepals 5. Fruiting bracteoles sessile, ovate to cuneate in outline, 1.5–2.7 × 1.1–2.1 mm, apex truncate to attenuate, faces smooth or tuberculate. Seeds brown, 1–2 mm.
Distribution
Colo., Utah, Wyo.
Discussion
Varieties 2 (2 in the flora).
Selected References
None.
Key
| 1 | Fruiting bracteoles with lateral distalmost lobes much larger and broader than median one; sc Colorado | Atriplex wolfii var. wolfii |
| 1 | Fruiting bracteoles with distalmost lobe typically but not always larger and broader than any lateral lobes, comprising much of bract length; nw Colorado, sw Wyoming, and c to ne Utah. | Atriplex wolfii var. tenuissima |