Amaranthus deflexus |
Amaranthus powellii |
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Argentina amaranth |
green amaranth, Powell's amaranth |
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Habit | Monoecious, erect, simple to freely-branched annual, the 1-several stems up to 2 m. tall, striate and reddish, usually glabrous below the inflorescence. | |
Leaves | Leaves alternate, the blade lanceolate or ovate to deltoid-elliptic, 2-10 cm. long, usually glabrous, narrowed abruptly to petioles about as long. |
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Flowers | Flowers numerous in crowded, spike-like, terminal or axillary clusters that are usually compound and up to 15 cm. long, subtended by several linear-lanceolate, spine-tipped bracts 2.5-5 mm. long; sepals somewhat unequal, those of the pistillate flowers about equal to the fruit, 2-3 mm. long, narrowly oblong, acute to obtuse; petals none; stamens usually 3; styles 3. |
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Fruits | 1-seeded capsule. |
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Amaranthus deflexus |
Amaranthus powellii |
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Flowering time | July-September | July-October |
Habitat | Open, disturbed areas. | Fields, roadsides, wastelots, and other disturbed areas. |
Distribution | Occurring east of the Cascades crest in Washingotn, where known only from Whitman County; Washington to California; also in eastern North America.
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Occurring on both sides of the Cascades crest in Washington; British Columbia to California, east across North America to the Atlantic Coast.
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Origin | Introduced from South America | Introduced from the southwestern United States and Mexico |
Conservation status | Not of concern | Not of concern |
Sibling taxa | ||
Web links |
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