Atriplex serenana |
Atriplex suberecta |
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bracteate orach, bractscale, saltscale, stinking orach |
peregrine saltbush, sprawling saltbush |
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Habit | Herbs, annual, erect or sprawling, usually branched often forming tangled mats to 10 × (3–)5–20 dm, ascending branches sparsely scurfy. | Herbs, annual or perennial, sprawling to ascending, 2–6 dm, branching from densely scaly base. | ||||
Leaves | many, subsessile or very short petiolate; blade subconcolorous, lanceolate to oblong, elliptic, or oval, (8–)10–30(–40) × 3–12(–15) mm, margin sharply dentate to entire. |
mostly alternate, shortly petiolate; blade narrow to broadly rhomboid, lanceolate, oblanceolate, or elliptic, (8–)12–35(–42) × 6–16 mm, thin, margin coarsely and irregularly dentate, glabrescent adaxially, somewhat scurfy abaxially. |
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Staminate flowers | in glomerules in terminal spikes or panicles 3–20 cm, or reduced to solitary, rounded, terminal glomerule. |
in subterminal, axillary glomerules. |
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Pistillate flower(s) | in small clusters, axillary. |
in axillary glomerules. |
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Seeds | brown, 1–1.3(–1.5) mm. |
circular. |
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Fruiting | bracteoles sessile or subsessile (stipe to 1 mm), cuneate-orbicular to obovate, somewhat compressed, 2.1–3.5 × (1.7–)2–3.7 mm, united 1/2 of length, margin sharply and often slenderly toothed beyond middle, faces often rather strongly veined, smooth or with 1 or more slender or flattened appendages. |
bracteoles sessile or on the stipe to 0.5 mm, rhombic to obovate, almost flat to convex, 2.2–4 × 1.7–2.7 mm, thin or somewhat thickened in age, connate in basal 1/2, margin entire in basal 1/2, 2–4-toothed in distal 1/2, apex acute, scurfy. |
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2n | = 18. |
= 18. |
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Atriplex serenana |
Atriplex suberecta |
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Phenology | Flowering summer–fall. | |||||
Habitat | Disturbed places, with other ruderal weeds | |||||
Elevation | 10-900 m (0-3000 ft) | |||||
Distribution |
CA; NV; nw Mexico
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CA; UT; Australia; naturalized South Africa [Introduced in North America]
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Discussion | Varieties 2 (2 in the flora). (Discussion copyrighted by Flora of North America; reprinted with permission.) |
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Key |
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Source | FNA vol. 4, p. 361. | FNA vol. 4, p. 343. | ||||
Parent taxa | Chenopodiaceae > Atriplex > subg. Obione > sect. Obione > subsect. Arenariae | Chenopodiaceae > Atriplex > subg. Atriplex > sect. Semibaccata | ||||
Sibling taxa | ||||||
Subordinate taxa | ||||||
Name authority | A. Nelson ex Abrams: Fl. Los Angeles, 128. (1904) | I. Verdoorn: Bothalia 6: 418, figs. 2, 3(2). (1954) | ||||
Web links |