Flora of North America species comparison

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Atriplex leucophylla

Atriplex heterosperma

beach saltbush, sea scale, whiteleaf orach

orach, Russian atriplex, Russian atriplex orach
Habit Herbs, prostrate (decumbent or procumbent), many branched, 1.5–6 dm, somewhat woody below, coarse, white scurfy. Herbs, monoecious, erect, branching from base, mostly 5–15 dm.
Leaves

many, sometimes crowded;

blade orbiculate to ovate or ovate-lanceolate to elliptic or oblong, 8–40 × 4–18 mm, base obtuse or rounded, white scurfy.

alternate except proximal-most;

petiole 2–3 cm;

blade green on both sides, triangular to lance-triangular, 30–120 × 12–90 mm, hastate or subcuneate, margin subentire or irregularly dentate, farinaceous at first, finally glabrous.
Flowers

in terminal or axillary pyramidal panicles 6–25+ cm.
Staminate flowers

in dense terminal spikes.

5-merous, with bracteoles free to base.
Pistillate flowers

in few-flowered, axillary clusters.

dimorphic, all bracteolate and lacking sepals.
Seeds

dark red-brown, 2.5–3 mm.

vertical; of larger bracteoles yellowish brown, flat, 2–3 mm wide, dull; of smaller bracteoles black, 1.5 mm wide or less, shiny;

radicle inferior, basal.
Fruiting

bracteoles not compressed, 5–7 mm, faces usually with wartlike projections, scurfy.

bracteoles orbiculate-ovate, of 2 sizes;

larger ones 5–6 × 5 mm;

smaller ones 2 × 2 mm, margin entire, surfaces smooth.
2n

= 36.

Atriplex leucophylla

Atriplex heterosperma
Phenology Flowering spring–fall. Flowering summer–fall.
Habitat Sea beaches, along coasts, at higher elevation inland Riparian and palustrine (less commonly ruderal) habitats
Elevation 0-30 m (0-100 ft) 0-2000 m (0-6600 ft)
Distribution
from FNA
CA; Mexico (Baja California)
[WildflowerSearch map]
[BONAP county map]
from FNA
CA; CO; ID; ME; NE; NV; NY; OR; SD; UT; WY; AB; BC; MB; ON; QC; Eurasia [Introduced in North America]
[WildflowerSearch map]
Discussion

Atriplex leucophylla occurs with Potentilla, Camissonia, Ambrosia, Cakile, and Calystegia.

(Discussion copyrighted by Flora of North America; reprinted with permission.)

Russian atriplex occurs with greasewood, saltgrass, cottonwood, tamarix, and weedy annuals. It is a handsome, vigorous ruderal, weedy annual indigenous to Europe east to Chinese Turkestan that appears to be invading saline lowland and other disturbed areas throughout much of North America. It is similar to Atriplex prostrata from which it can be distinguished by the entire margin and smooth surfaces of the fruiting bracteoles. Additionally, the leaves are thick-textured and often bear one or more lobes or teeth irregularly along the blade above the subbasal main hastate lobe. The staminate spikes when young are very slender, mainly less than 2.5 mm thick.

(Discussion copyrighted by Flora of North America; reprinted with permission.)
Source FNA vol. 4, p. 366. FNA vol. 4, p. 336.
Parent taxa Chenopodiaceae > Atriplex > subg. Obione > sect. Obione > subsect. Leucophyllae Chenopodiaceae > Atriplex > subg. Atriplex > sect. Teutliopsis
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. 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
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. 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, A. wrightii
Synonyms Obione leucophylla
Name authority (Moquin-Tandon) D. Dietrich: Syn. Pl. 5: 536. (1852) Bunge: Beitr. Fl. Russl., 272. (1852)
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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