Amaranthus
amaranth, pigweed
Specimens
Photos
Origin: Native
Conservation Status: Not of concern
Description:
[none provided]
Accepted Name:
Amaranthus
Publication: Sp. Pl. 2: 989. 1753; Gen. Pl., ed. 5, 427. 1754.
Publication: Sp. Pl. 2: 989. 1753; Gen. Pl., ed. 5, 427. 1754.
Synonyms & Misapplications:
(none provided)
Species in Amaranthus:
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Amaranthus albus – white pigweed, tumbleweed
Occurring chiefly east of the Cascades crest in Washington; British Columbia to California, east across much of North America to the Atlantic Coast. -
Amaranthus blitoides – matweed, prostrate pigweed Occurring chiefly east of the Cascades crest in Washington; Alaska to California, east across North America to the Atlantic Coast; cosmopolitan.
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Amaranthus blitum – livid amaranth, pale amaranth Occurring chiefly west of the Cascades crest in Washington; southern British Columbia to California; also in the southeastern U.S. and eastern North America.
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Amaranthus californicus – California amaranth Occurring east of the Cascades crest in Washington; eastern Washington to California, east to the Rocky Mountains and Great Plains.
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Amaranthus caudatus
- Amaranthus cruentus – blood amaranth, caterpillar amaranth, purple amaranth
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Amaranthus deflexus – Argentina amaranth 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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Amaranthus hybridus – green amaranth, hybrid amaranth, smooth amaranth, green pigweed, smooth pigweed Occurring on both sides of the Cascades crest in Washington; British Columbia to California, east to the Atlantic Coast.
- Amaranthus hypochondriacus
- Amaranthus palmeri
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Amaranthus powellii – green amaranth, Powell's amaranth 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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Amaranthus retroflexus – redroot pigweed, rough pigweed Occurring on both sides of the Cascades crest in Washington; Alaska to California, east across North America to the Atlantic Coast.
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Amaranthus tuberculatus – rough-fruited waterhemp, tall waterhemp No specimens seen for Washington, but reported in Washington by the Flora of North America. Cosmopolitan weed found throughout North America.
Additional Resources:
PNW Herbaria: Specimen records of Amaranthus in the Consortium of Pacific Northwest Herbaria database
WA Flora Checklist: Amaranthus checklist entry
OregonFlora: Amaranthus information
E-Flora BC: Amaranthus atlas page
CalPhotos: Amaranthus photos
126 photographs:
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