PALMER'S PIGWEED
File Size: 100 KB
 
Amaranthus palmeri  S. Wats.
Riley County, Kansas
Annual
Height: 12-80 inches
Family: Amaranthaceae - Amaranth Family
Flowering Period:   July, August, September,October
Stems: Stems ascending to erect, simple to much-branched, glabrous; nodes without paired spines.
Leaves: Cauline, alternate; long-petiolate; blade lanceolate to elliptic or ovate, .4 to 4 inches long, .4 to 1.4 inch wide, base acute to rounded, margins entire, tip obtuse to short-acuminate, surfaces glabrous.
Inflorescences: Panicles, terminal, often long and slender, usually also with axillary spikes; bracts 3, ovate, distinctly longer than tepals, 1/6 to 1/4 inch, apex long-acuminate to subulate.
Flowers: Staminate flowers: tepals 5, unequal, lanceolate to oblong-elliptic, outer ones ca. 1/6 inch, apex awn-like, inner ones 1/10 to 1/8 inch, apex acuminate or notched and awn-like; stamens 5. Pistillate flowers: tepals 5, unequal, oblanceolate to spatulate, outer ones 1/8 to 1/6 inch, awn-like, inner ones 1/12 to 1/8 inch, rounded or acute; stigmas 2(-3).
Fruits: Utricles .06 to .08 inch; seeds black, biconvex, .04 to .05 inch.
Habitat: Sandy fields, river and stream floodplains, roadsides, and waste places.
Distribution: Occurs nearly statewide
Origin: Native
Uses: Native Americans in the Southwest rolled the cooked plants into a ball that was baked and stored for future use and would sun dry the seeds and grind them for food.
Comments: Plants dioecious. Amaranthus, unfading, alluding to the persistent bracts and tepals. Named for Edward Palmer, British-born botanist.

Palmer's pigweed
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Riley County, Kansas
Palmer's pigweed inflorescence
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Riley County, Kansas
Palmer's pigweed inflorescence
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Riley County, Kansas
Palmer's pigweed inflorescence
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Riley County, Kansas
Palmer's pigweed
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Riley County, Kansas
Palmer's pigweed flowers
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Riley County, Kansas
Palmer's pigweed leaf
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Riley County, Kansas
Palmer's pigweed stem
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Riley County, Kansas