Atriplex semibaccata |
Atriplex pacifica |
|
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Australian saltbush, berry saltbush, creeping saltbush |
Davidson's saltbush, Pacific orach, south coast saltbush, south coast saltscale |
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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. | Herbs, annual, prostrate, sometimes tinged red, 1–6 dm, forming tangled masses 3–10 dm diam., lightly scurfy when young. |
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. |
numerous, sessile or proximal short petiolate; blade greenish adaxially, paler abaxially, oblanceolate to spatulate-elliptic or oval, (3–)5–18 × 1–8 mm, margin entire, more scurfy abaxially. |
Staminate flowers | in small, terminal, leaf-bracteate glomerules 1.5 mm wide. |
in glomerules largely in distal bractless axils, thus short spicate; calyx 5-cleft. |
Pistillate flowers | solitary or in few-flowered clusters in almost all but distalmost leaves. |
in proximal axils. |
Seeds | dimorphic: black, 1.5–1.7 mm, or brown, 2 mm. |
light brown, 0.8–1 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 subsessile or stipe to 0.3 mm, suborbiculate to obovate, 1–1.5(–2) × 1.1–1.8 mm, united to middle, margin minutely 3–5-toothed at apex, otherwise entire, apex green, faces smooth or rarely tuberculate. |
2n | = 18. |
|
Atriplex semibaccata |
Atriplex pacifica |
|
Phenology | Flowering spring–early winter. | Flowering early spring–fall. |
Habitat | Saline waste places, along roads and sidewalks, in marshes, in various plant communities | Mainly on sea bluffs |
Elevation | 10-1000 m (0-3300 ft) | 0-100 m (0-300 ft) |
Distribution |
AZ; CA; DC; NM; NV; TX; UT; WA; Australia [Introduced in North America]
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CA; Mexico (Baja California)
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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.) |
The name Atriplex ramosissima was published by Moquin-Tandon as a synonym, based on a name on a specimen in Nuttall’s herbarium. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Source | FNA vol. 4, p. 343. | FNA vol. 4, p. 363. |
Parent taxa | Chenopodiaceae > Atriplex > subg. Atriplex > sect. Semibaccata | Chenopodiaceae > Atriplex > subg. Obione > sect. Obione > subsect. Arenariae |
Sibling taxa | ||
Synonyms | A. flagellaris | Obione microcarpa, A. ramosissima |
Name authority | R. Brown: Prodr., 406. (1810) | A. Nelson: Proc. Biol. Soc. Wash., 17: 99. (1904) |
Web links |