Flora of North America species comparison

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Atriplex nummularia

Atriplex laciniata

bluegreen saltbush, old man saltbush

Belgian orach, frosted orache
Habit Shrubs, semidioecious, mainly (15–)20–30 dm, with striated twigs. Herbs, procumbent, many branched, alternate except basally, 0.06–3 dm.
Stems

reddish or yellowish, smooth or subangular.
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.

with blade ovate to lance-ovate or lanceolate to oblong, 15–45 mm, large basal lobes, obtuse, cuneate to a short petiole, margin sinuate-dentate, scurfy on both sides.
Flowers

in glomerules in distal leaf axils, axillary or in short terminal spikes.
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.

monomorphic, light brown, 3.5–4 mm wide;

radicle inferior.
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.

bracteoles whitish green, sessile or subsessile, broadly rhombic, (4–)6–7(–8) mm, thickened at base, becoming scaly in age, cartilaginous in basal 1/2, lateral angles strongly produced and with margin mostly entire, faces smooth or irregular, pointed, or flattened and winglike tubercles in basal 1/2.
2n

= 18.

Atriplex nummularia

Atriplex laciniata
Phenology Flowering summer–fall. Flowering summer–fall.
Habitat Sandy coastal bluffs, disturbed sites such as roadsides Sand, cobble on more or less protected beaches, on Zostera and Fucus wrack
Elevation 0-2300 m (0-7500 ft) 0-50 m (0-200 ft)
Distribution
from FNA
AZ; CA; Mexico; Australia [Introduced in North America]
[BONAP county map]
from FNA
NB; NS; PE; QC; Europe [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.)

Atriplex laciniata is evidently rare in North America.

(Discussion copyrighted by Flora of North America; reprinted with permission.)
Source FNA vol. 4, p. 343. FNA vol. 4, p. 341.
Parent taxa Chenopodiaceae > Atriplex > subg. Atriplex > sect. Dialysex Chenopodiaceae > Atriplex > subg. Atriplex > sect. Sclerocalymma
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
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. 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, A. wrightii
Synonyms A. johnstonii
Name authority Lindley: in T. L. Mitchell, J. Exped. Trop. Australia, 64. (1848) Linnaeus: Sp. Pl. 2: 1053. (1753)
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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