Flora of North America species comparison

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Atriplex semibaccata

Atriplex linearis

Australian saltbush, berry saltbush, creeping saltbush

slenderleaf saltbush, thinleaf fourwing saltbush
Habit Herbs or subshrubs, perennial, decumbent-prostrate, unarmed, mainly 0.5–8 dm and spreading to 15+ dm wide, unarmed, white scurfy when young; branches not angled. Shrubs dioecious, erect, mainly 10–25 dm; branchlets slender, terete.
Leaves

many, alternate, subsessile or short petiolate;

blade 1-veined, spatulate or obovate to oblong or elliptic, mainly 5–30(–40) × 2–9(–12) mm, base attenuate, margin remotely dentate to subentire, apex obtuse.

sessile;

blade narrowly linear-elliptic, 10–50 × 2–3 mm, firm, revolute, often acute apically.
Staminate flowers

in small, terminal, leaf-bracteate glomerules 1.5 mm wide.

in glomerules borne in slender interrupted mostly paniculate spikes.
Pistillate flowers

solitary or in few-flowered clusters in almost all but distalmost leaves.

paniculate or in few-flowered axillary glomerules.
Seeds

dimorphic: black, 1.5–1.7 mm, or brown, 2 mm.

Fruiting

bracteoles red-fleshy at maturity, sessile or short stipitate, strongly veined, rhombic, convex, 3–6.6 × 2.8–4.5 mm, united at base, margin toothed, apex obtuse to acute.

bracteoles sessile or subsessile, lanceolate to ovate, 4–6 mm, about as wide, each bract with a pair of thin wings 3 mm broad or less, irregularly dentate or laciniate, free tips of bracts much exceeding the wings.
2n

= 18.

= 18.

Atriplex semibaccata

Atriplex linearis
Phenology Flowering spring–early winter. Flowering spring–fall.
Habitat Saline waste places, along roads and sidewalks, in marshes, in various plant communities Saline deserts, with shadscale, Canotia, Yucca, Opuntia, Rhus, and Eriogonum
Elevation 10-1000 m (0-3300 ft) 0-800 m (0-2600 ft)
Distribution
from FNA
AZ; CA; DC; NM; NV; TX; UT; WA; Australia [Introduced in North America]
[WildflowerSearch map]
[BONAP county map]
from FNA
AZ; CA; nw Mexico (Baja California, Sonora)
[WildflowerSearch map]
Discussion

The red-fleshy fruiting bracteoles are diagnostic of this introduced perennial, which is multi-stemmed from an often buried woody caudex.

The Australian species Atriplex muelleri Bentham is somewhat similar. It has been has reported, but not verified, in the North American flora.

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

Specimens of Atriplex canescens var. macilenta resemble A. linearis. The taxa have been placed together by some previous workers. Nevertheless, the stems of A. linearis are consistently more slender, the leaves proportionally narrower, and the bracts, though smaller, more closely simulate those of A. canescens. Its diploid nature signals a different evolutionary pathway than that for most of A. canescens, considered broadly. Narrow leaves occur within A. canescens, in the broad sense, sometimes with geographic correlation, sometimes not.

(Discussion copyrighted by Flora of North America; reprinted with permission.)
Source FNA vol. 4, p. 343. FNA vol. 4, p. 381.
Parent taxa Chenopodiaceae > Atriplex > subg. Atriplex > sect. Semibaccata Chenopodiaceae > Atriplex > subg. Pterochiton
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. 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. laciniata, A. lentiformis, A. leucophylla, A. lindleyi, 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. flagellaris A. canescens subsp. linearis, A. canescens var. linearis
Name authority R. Brown: Prodr., 406. (1810) S. Watson: Proc. Amer. Acad. Arts 24: 72. (1889)
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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