Atriplex klebergorum |
Atriplex suberecta |
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Kleberg orach, Kleberg's saltbush |
peregrine saltbush, sprawling saltbush |
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Habit | Herbs, with ligneous vertical taproot 5–9 mm thick; bark pale. | Herbs, annual or perennial, sprawling to ascending, 2–6 dm, branching from densely scaly base. |
Stems | erect, diffuse; branches alternate, numerous, horizontal or distally ascending, terete, 1.5–4 dm, densely white farinose when young, glabrate in age; bark becoming pale brownish white and flaky; internodes mostly shorter than 1(–2.4) cm. |
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Leaves | alternate, proximalmost subopposite, sessile; blade ovate-deltoid, 0.5–1.5(–2.5) × 5–12(–15) mm, rather firm and flat, base rounded, truncate, or slightly clasping, margin entire or toothed, apex acute, very densely canescent-farinose with a greenish yellow tinge. |
mostly alternate, shortly petiolate; blade narrow to broadly rhomboid, lanceolate, oblanceolate, or elliptic, (8–)12–35(–42) × 6–16 mm, thin, margin coarsely and irregularly dentate, glabrescent adaxially, somewhat scurfy abaxially. |
Flowers | sessile, axillary, inconspicuous, mostly in leafy lateral branches with extremely short internodes, arising toward tips of secondary branches. |
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Staminate flowers | in most distal axils, 2 mm wide; sepals 3–5, mostly hyaline, curved elliptic, 1.5–1.7 mm, mucronulate, farinose dorsally. |
in subterminal, axillary glomerules. |
Pistillate flowers | densely farinose; bracteoles adnate to ovary. |
in axillary glomerules. |
Seeds | dark reddish brown, round-lenticular, 1.5 mm wide, shining; radicle superior. |
circular. |
Fruiting | bracteoles variably and irregularly 3–7-cleft, ovate-orbicular, 3.1–4.7 × (3.2–)4–7 mm, typically somewhat constricted below middle, with terminal lobes (1–)1.5–2.8 mm, densely scurfy, faces doubly cristate or smooth. |
bracteoles sessile or on the stipe to 0.5 mm, rhombic to obovate, almost flat to convex, 2.2–4 × 1.7–2.7 mm, thin or somewhat thickened in age, connate in basal 1/2, margin entire in basal 1/2, 2–4-toothed in distal 1/2, apex acute, scurfy. |
2n | = 18. |
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Atriplex klebergorum |
Atriplex suberecta |
|
Phenology | Flowering summer. | Flowering summer–fall. |
Habitat | In silty or clay loam soils | Disturbed places, with other ruderal weeds |
Elevation | 10-900 m (0-3000 ft) | |
Distribution |
TX; of conservation concern; near sea level |
CA; UT; Australia; naturalized South Africa [Introduced in North America]
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Discussion | Of conservation concern. The species was noted by its author as apparently belonging in sect. Argenteae Standley; I concur with that alignment. The overall shape of the bracteoles with a subterminal constriction is reminiscent of those of Atriplex powellii, but the bracteole shape is otherwise distinctive, and the long marginal teeth and occasional elongate cristate processes on the faces are unmatched elsewhere in the Argenteae. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
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Source | FNA vol. 4, p. 353. | FNA vol. 4, p. 343. |
Parent taxa | ||
Sibling taxa | ||
Name authority | M. C. Johnston: SouthW. Naturalist 6: 49. (1961) | I. Verdoorn: Bothalia 6: 418, figs. 2, 3(2). (1954) |
Web links |