Flora of North America species comparison

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Atriplex wrightii

Wright's orach, Wright's saltbush
Habit Herbs, annual.
Stems

erect and ascending, sparsely branched or simple, obtusely angled, 1.5–10(–15) dm, stout, scurfy when young.
Leaves

sessile or short petiolate;

blade white abaxially, green adaxially, linear to lanceolate, elliptic, or oblong, 15–75 × (1–)3–25 mm, thin, base cuneate to long attenuate, margin coarsely sinuate-dentate or entire, apex rounded to acute, mucronate, densely scurfy and pale abaxially, green and glabrous adaxially.
Staminate flowers

in glomerules, forming slender, usually dense, naked terminal narrowly paniculate spikes, panicles 6–30 cm;

glomerules beadlike, small, 2–3 mm thick;

calyx 5-cleft.
Pistillate flowers

in few-flowered axillary clusters.
Seeds

pale brown, 1 mm.
Fruiting

bracteoles short stipitate, cuneate-orbiculate or broadly cuneate, compressed, 2–2.5 mm, united basally, apex rounded, acutely 5-dentate, faces 3-veined, usually unappendaged, rarely obscurely tuberculate.

Atriplex wrightii
Phenology Flowering summer–fall.
Habitat In alkaline or saline substrates, often along roadsides, in old fields and vacant lots
Elevation 400-1200 m (1300-3900 ft)
Distribution
from FNA
AZ; NM; TX; Mexico
[WildflowerSearch map]
[BONAP county map]
Discussion

The name Obione elegans var. radiata was discussed by H. M. Hall and F. E. Clements (1923), who did not see the Thurber type material, but did see another cited specimen, Wright 571, from west Texas, which is referable to Atriplex elegans. The concept of A. radiata, according to Coulter, includes A. wrightii as a synonym; the description supplied by him is of that entity.

(Discussion copyrighted by Flora of North America; reprinted with permission.)
Source FNA vol. 4, p. 361.
Parent taxa Chenopodiaceae > Atriplex > subg. Obione > sect. Obione > subsect. Arenariae
Sibling taxa
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. spinifera, A. suberecta, A. suckleyi, A. tatarica, A. torreyi, A. truncata, A. tularensis, A. watsonii, A. wolfii
Name authority S. Watson: Proc. Amer. Acad. Arts 9: 113. (1874)
Web links 
Unless otherwise noted, all data comes from the online version of the Flora of North America, who have made most of their content available via a Creative Commons license (CC BY 4.0).



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