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Corispermum americanum (American bugseed)
Smith, R.W.

Corispermum americanum

Corispermum americanum (Nutt.) Nutt.

American Bugseed

Chenopodiaceae (Goosefoot Family)


USDA Symbol: COAM8

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


From the Image Gallery

2 photo(s) available in the Image Gallery

Plant Characteristics

Duration: Annual
Habit: Herb
Root Type: Tap
Leaf Arrangement: Alternate
Leaf Complexity: Simple
Leaf Shape: Linear
Breeding System: Flowers Bisexual
Inflorescence: Spike
Fruit Type: Achene
Size Notes: 10-35(-50) cm, (Webref 3).
Leaf: Leaf blades linear or narrowly linear (occasionally linear-lanceolate or almost filiform), usually plane or occasionally folded (especially in dry plants), 1.5-3.5(-4) x 0.1-0.3 cm. (Webref 3).
Fruit: Achene. Fruits yellowish brown, greenish brown, light brown, or brown, often with reddish brown spots and whitish warts, slightly convex abaxially, usually plane or slightly concave adaxially, obovate or obovate-elliptic, usually broadest beyond middle, (2.3-)2.5-4.5 x 2-3.5 mm, shiny or dull; wing translucent, thin, (occasionally translucent only at margin, thick), (0.15-)0.2-0.3(-0.4) mm wide, margins entire or rarely indistinctly erose, apex broadly triangular, less commonly truncate or rounded. (Webref 3).

Bloom Information

Bloom Color: Green
Bloom Time: Aug , Sep , Oct , Nov


USA: AK , AR , AZ , CA , CO , GA , IA , ID , IL , KS , KY , MA , MI , MN , MO , MT , ND , NE , NJ , NM , NV , NY , OH , OK , OR , SD , TX , UT , WA , WI , WY
Canada: AB , BC , MB , NT , ON , QC , SK
Native Habitat: Dunes, sandy prairies and hills and dry waste places.

Growing Conditions

Water Use: Low
Light Requirement: Sun
Soil Moisture: Dry
Drought Tolerance: High
Cold Tolerant: yes
Heat Tolerant: yes
Soil Description: Sand dunes and sandy soils.

National Wetland Indicator Status

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.

Web Reference

Webref 3 - Flora of North America (2014) Missouri Botanical Garden, St. Louis, MO & Harvard University Herbaria, Cambridge, MA.

Additional resources

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


Record Modified: 2012-10-25
Research By: Joseph A. Marcus

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