Atriplex obovata |
Atriplex suberecta |
|
---|---|---|
broadscale, mound saltbush, New Mexico saltbush, silver saltbush |
peregrine saltbush, sprawling saltbush |
|
Habit | Subshrubs, dioecious, clump forming, mainly 2–8 dm and as wide, woody at base. | Herbs, annual or perennial, sprawling to ascending, 2–6 dm, branching from densely scaly base. |
Stems | stiffly erect; branchlets terete. |
|
Leaves | tardily deciduous, alternate or proximal-most subopposite, shortly petiolate; blade gray green, oblong-ovate to elliptic or orbiculate, 8–30(–35) × 6–20 mm, margin entire or rarely dentate, apex rounded to retuse or obtuse. |
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. |
Staminate flowers | yellow, in clusters 2–3 mm wide, borne in panicles 6–30 cm. |
in subterminal, axillary glomerules. |
Pistillate flowers | in small, very numerous glomerules in axils of elongated, terminal leafy-bracteate spikes or finally paniculate. |
in axillary glomerules. |
Seeds | brown, 2.4–2.8 mm. |
circular. |
Fruiting | bracteoles sessile or substipitate, 4–5 × 5–9 mm, base broadly cuneate, margin sharply toothed, apical tooth subtended by 2–6 equal or smaller teeth, faces smooth or rarely tuberculate. |
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. |
2n | = 18. |
|
Atriplex obovata |
Atriplex suberecta |
|
Phenology | Flowering summer–fall. | Flowering summer–fall. |
Habitat | Fine-textured substrates, with salt desert shrub and lower pinyon-juniper communities | Disturbed places, with other ruderal weeds |
Elevation | 1500-2000 m (4900-6600 ft) | 10-900 m (0-3000 ft) |
Distribution |
AZ; CO; NM; TX; UT; Mexico
|
CA; UT; Australia; naturalized South Africa [Introduced in North America]
|
Source | FNA vol. 4, p. 371. | FNA vol. 4, p. 343. |
Parent taxa | Chenopodiaceae > Atriplex > subg. Pterochiton | Chenopodiaceae > Atriplex > subg. Atriplex > sect. Semibaccata |
Sibling taxa | ||
Synonyms | A. greggii, A. jonesii, A. obovata var. tuberata | |
Name authority | Moquin-Tandon: Chenop. Monogr. Enum., 61. (1840) | I. Verdoorn: Bothalia 6: 418, figs. 2, 3(2). (1954) |
Web links |