Flora of North America species comparison

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Atriplex nummularia

bluegreen saltbush, old man saltbush
Habit Shrubs, semidioecious, mainly (15–)20–30 dm, with striated twigs.
Leaves

mostly alternate, short petiolate;

blade broadly ovate, rhombic to suborbiculate, (15–)30–65 mm, about as wide, thick, base cuneate, margin sinuate-dentate, apex obtuse to rounded.
Staminate flowers

crowded in glomerules on short or elongate, interrupted spikes in large paniculate clusters to 20 cm.
Pistillate flowers

in dense, compound panicles, or axillary, or along staminate panicle branches.
Seeds

brown, 2 mm wide.
Fruiting

bracteoles sessile, reticulately veined, rhombic to orbiculate, 5–12(–15) × 5–11 mm, papery all over or thick and corky, margin subentire to coarsely few-toothed.

Atriplex nummularia
Phenology Flowering summer–fall.
Habitat Sandy coastal bluffs, disturbed sites such as roadsides
Elevation 0-2300 m (0-7500 ft)
Distribution
from FNA
AZ; CA; Mexico; Australia [Introduced in North America]
[BONAP county map]
Discussion

Atriplex nummularia is a rather coarse, broad-leaved, vigorous shrub, which has spread from some early introduction from Australia, possibly for use in stabilizing land.

(Discussion copyrighted by Flora of North America; reprinted with permission.)
Source FNA vol. 4, p. 343.
Parent taxa Chenopodiaceae > Atriplex > subg. Atriplex > sect. Dialysex
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. 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, A. wrightii
Synonyms A. johnstonii
Name authority Lindley: in T. L. Mitchell, J. Exped. Trop. Australia, 64. (1848)
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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