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Cressler, Alan

Amaranthus palmeri

Amaranthus palmeri S. Watson

Carelessweed

Amaranthaceae (Amaranth Family)

Synonym(s):

USDA Symbol: AMPA

USDA Native Status: L48 (N), CAN (I)

The Amaranthaceae are a family of annual or perennial herbs with small, crowded flowers. There are usually 5 sepals and no petals. Filaments of the stamens are often united into a short tube.

From the Image Gallery

8 photo(s) available in the Image Gallery

Plant Characteristics

Duration: Annual
Habit: Herb
Leaf Arrangement: Alternate
Leaf Complexity: Simple
Leaf Shape: Elliptic , Lanceolate , Obovate
Leaf Pubescence: Glabrous
Leaf Margin: Entire
Leaf Apex: Acute
Leaf Base: Cuneate
Inflorescence: Panicle , Spike , Terminal
Size Notes: Up to about 10 feet tall, often much shorter.
Fruit: Utricle.

Bloom Information

Bloom Color: Green
Bloom Time: Jun , Jul , Aug , Sep , Oct

Distribution

USA: AR , AZ , CA , CO , FL , GA , IL , KS , KY , LA , MA , MD , MO , MS , NC , NE , NJ , NM , NV , NY , OH , OK , PA , SC , TN , TX , UT , VA , WI , WV

National Wetland Indicator Status

Region:	AGCP	AK	AW	CB	EMP	GP	HI	MW	NCNE	WMVE
Status:	FACU		FACU		FACU	FACU		FACU	FACU	FACU

This information is derived from the U.S. Army Corps of Engineers National Wetland Plant List, Version 3.1 (Lichvar, R.W. 2013. The National Wetland Plant List: 2013 wetland ratings. Phytoneuron 2013-49: 1-241). Click here for map of regions.

From the National Organizations Directory

According to the species list provided by Affiliate Organizations, this plant is on display at the following locations:

Sibley Nature Center - Midland, TX
Natural Biodiversity - Johnstown, PA

Herbarium Specimen(s)

NPSOT 0891 Collected May 20, 1994 in Bexar County by Harry Cliffe

1 specimen(s) available in the Digital Herbarium

Web Reference

Webref 30 - Calflora (2018) Calflora
Webref 38 - Flora of North America (2019) Missouri Botanical Garden, St. Louis, MO & Harvard University Herbaria, Cambridge, MA.
Webref 23 - Southwest Environmental Information Network (2009) SEINet - Arizona Chapter

Additional resources

USDA: Find Amaranthus palmeri in USDA Plants
FNA: Find Amaranthus palmeri in the Flora of North America (if available)
Google: Search Google for Amaranthus palmeri

Metadata

Record Modified: 2022-11-11
Research By: TWC Staff

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