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beach saltbush, sea scale, whiteleaf orach

crownscale, wedgescale

Habit Herbs, prostrate (decumbent or procumbent), many branched, 1.5–6 dm, somewhat woody below, coarse, white scurfy. Herbs, erect or decumbent, 0.5–6 dm; branches terete, fructiferous almost to base, scurfy when young.
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, subsessile or proximal short petiolate;

blade ascending, oblong, oblong-ovate, or lanceolate to elliptic, 5–40 × 2–10 mm, thin, base acute to obtuse, margin entire, apex acute to acuminate.

Flowers

of both sexes in small axillary glomerules, 5-merous.

Staminate flowers

in dense terminal spikes.

Pistillate flowers

in few-flowered, axillary clusters.

Seeds

dark red-brown, 2.5–3 mm.

light brown to amber, 1–1.5 mm.

Fruiting

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

bracteoles almost sessile, broadly cuneate, 2–5 × (2–)2.5–5 mm, united to summit, truncate at summit, sides smooth or obscurely tuberculate.

2n

= 36.

Atriplex leucophylla

Atriplex coronata

Phenology Flowering spring–fall.
Habitat Sea beaches, along coasts, at higher elevation inland
Elevation 0-30 m (0-100 ft)
Distribution
from FNA
CA; Mexico (Baja California)
[WildflowerSearch map]
[BONAP county map]
from FNA
CA
[WildflowerSearch map]
[BONAP county map]
Discussion

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

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

Varieties 3 (3 in the flora).

Although placed within the Atriplex argentea species complex by P. C. Standley (1916), this taxon appears more nearly allied to A. cordulata, differing mainly in leaf shape, round-ovate or deltoid-ovate to elliptic or lanceolate (not ovate to cordate-ovate), and markedly tuberculate faces of the fruiting bracteoles.

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

Key
1. Stems ± erect; body of fruiting bracteoles ± semicircular in profile, compressed or ± spheric; tubercles dense; marginal teeth ± equal.
var. notatior
1. Stems decumbent to ascending; body of fruiting bracteoles approaching circular or flabellate in profile, ± compressed; tubercles usually few; marginal teeth unequal
→ 2
2. Fruiting bracteoles 2-4 mm; basal branches and leaves typically opposite.
var. vallicola
2. Fruiting bracteoles (2-)4-5 mm; basal branches and leaves typically alternate
var. coronata
Source FNA vol. 4, p. 366. FNA vol. 4.
Parent taxa Chenopodiaceae > Atriplex > subg. Obione > sect. Obione > subsect. Leucophyllae Chenopodiaceae > Atriplex > subg. Obione > sect. Obione > subsect. Pusillae
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. 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, A. wrightii
Subordinate taxa
A. coronata var. coronata, A. coronata var. notatior, A. coronata var. vallicola
Synonyms Obione leucophylla A. elegans var. coronata, Obione coronata
Name authority (Moquin-Tandon) D. Dietrich: Syn. Pl. 5: 536. (1852) S. Watson: Proc. Amer. Acad. Arts 9: 114. (1874)
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