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broadscale, mound saltbush, New Mexico saltbush, silver saltbush
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spinescale saltbush, spiny saltbush
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| Subshrubs, dioecious, clump forming, mainly 2–8 dm and as wide, woody at base. |
Shrubs, dioecious, erect, intricately much branched, mainly 3–15 dm; branchlets terete, becoming rigid and spinose. |
stiffly erect; branchlets terete. |
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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. |
short petiolate to sessile; blade ovate-deltate to elliptic or spatulate, (5–)10–27 mm, entire or subhastate. |
yellow, in clusters 2–3 mm wide, borne in panicles 6–30 cm. |
borne in small axillary glomerules. |
in small, very numerous glomerules in axils of elongated, terminal leafy-bracteate spikes or finally paniculate. |
borne solitary or few in bract axils on short, spinose, lateral branchlets of a paniculate inflorescence. |
brown, 2.4–2.8 mm. |
reddish brown, 2–2.8 mm. |
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 nearly so, body globose, connate, constricted below oblong to orbicular wings, 7–15 ×3.5–10 mm, entire or obscurely dentate, faces smooth to sparingly cristate. |
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| Flowering summer–fall. |
Flowering summer–fall. |
| Fine-textured substrates, with salt desert shrub and lower pinyon-juniper communities |
Xeric saline substrates, with mixed salt desert shrubs |
| 1500-2000 m (4900-6600 ft) |
30-1300 m (100-4300 ft) |
|
AZ; CO; NM; TX; UT; Mexico
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CA
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Spiny saltbush apparently forms occasional hybrids with phases of Atriplex canescens, as indicated by the presence of wings on some of the fruiting bracteoles. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
| FNA vol. 4, p. 371. |
FNA vol. 4, p. 377. |
| Chenopodiaceae > Atriplex > subg. Pterochiton |
Chenopodiaceae > Atriplex > subg. Pterochiton |
A. acanthocarpa, A. amnicola, A. argentea, A. californica, A. canescens, A. confertifolia, A. cordulata, A. coronata, A. corrugata, A. coulteri, A. covillei, A. dioica, A. elegans, A. fruticulosa, A. gardneri, A. garrettii, A. glabriuscula, A. gmelinii, A. graciliflora, A. heterosperma, A. holocarpa, A. hortensis, A. hymenelytra, A. joaquiniana, A. klebergorum, A. laciniata, A. lentiformis, A. leucophylla, A. lindleyi, A. linearis, A. littoralis, A. matamorensis, A. mucronata, A. nudicaulis, A. nummularia, A. oblongifolia, A. pacifica, A. parishii, A. parryi, A. patula, A. pentandra, A. phyllostegia, A. pleiantha, A. polycarpa, A. powellii, A. prostrata, A. pusilla, A. rosea, A. saccaria, A. semibaccata, A. serenana, A. spinifera, A. suberecta, A. suckleyi, A. tatarica, A. torreyi, A. truncata, A. tularensis, A. watsonii, A. wolfii, A. wrightii |
A. acanthocarpa, A. amnicola, A. argentea, A. californica, A. canescens, A. confertifolia, A. cordulata, A. coronata, A. corrugata, A. coulteri, A. covillei, A. dioica, A. elegans, A. fruticulosa, A. gardneri, A. garrettii, A. glabriuscula, A. gmelinii, A. graciliflora, A. heterosperma, A. holocarpa, A. hortensis, A. hymenelytra, A. joaquiniana, A. klebergorum, A. laciniata, A. lentiformis, A. leucophylla, A. lindleyi, A. linearis, A. littoralis, A. matamorensis, A. mucronata, A. nudicaulis, A. nummularia, A. oblongifolia, A. obovata, A. pacifica, A. parishii, A. parryi, A. patula, A. pentandra, A. phyllostegia, A. pleiantha, A. polycarpa, A. powellii, A. prostrata, A. pusilla, A. rosea, A. saccaria, A. semibaccata, A. serenana, A. suberecta, A. suckleyi, A. tatarica, A. torreyi, A. truncata, A. tularensis, A. watsonii, A. wolfii, A. wrightii |
| A. greggii, A. jonesii, A. obovata var. tuberata |
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| Moquin-Tandon: Chenop. Monogr. Enum., 61. (1840) |
J. F. Macbride: Contr. Gray Herb. 53: 11. (1918) |
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