Amaranthus palmeri |
Amaranthus californicus |
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California amaranth |
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Habit | Plants glabrous. | |
Stems | prostrate; much branched and mat-forming, 1–5 dm, often whitish. |
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Leaves | blades oblong, obovate, or oblanceolate, 3–20 mm, bases wedge-shaped; margins entire; plane; flat to sometimes undulate; midveins extending to a spine; tips rounded to subacute; petioles 2–6(8)mm; ? ½ as long as blade. |
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Inflorescences | axillary clusters of flowers, staminate and pistillate flowers intermixed; bracts small and inconspicuous, 1–2 mm. |
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Staminate flowers | perianth segments (2)3; equal to subequal, 1–1.5 mm; stamens 3. |
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Pistillate flowers | perianth segments 1–3, unequal, only 1 well developed, 1–1.2 mm; styles 3; erect. |
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Fruits | subglobose, 1–1.2 mm; smooth, wrinkled near tips; dehiscence irregular to circumscissile. |
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Seeds | lenticular, obovate, 0.7–1 mm, dark red-brown; shiny. |
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Amaranthus palmeri |
Amaranthus californicus |
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Distribution | ||
Discussion | Mud flats, dry ponds, ditches, gravel bars, disturbed areas. Flowering Jun–Sep. 50–1500 m. BR, BW, Owy, Sisk. CA, ID, NV, WA; scattered in western North America. Native. |
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Source | Flora of Oregon, volume 2, page 65 Bridget Chipman |
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Sibling taxa | ||
Web links |
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