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Amphicarpum muehlenbergianum

Amphicarpum muehlenbergianum (Schult.) Hitchc.

Muhlenberg Maidencane, Florida Peanut-grass, Blue Maidencane

Poaceae (Grass Family)

Synonym(s): Amphicarpum floridanum

USDA Symbol: AMMU2

USDA Native Status: L48 (N)

This plant has two types of flowering parts, aerial and underground, but spikelets on aerial parts are sterile.


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Plant Characteristics

Duration: Perennial
Habit: Grass/Grass-like
Root Type: Fibrous
Leaf Arrangement: Alternate
Leaf Complexity: Simple
Leaf Shape: Lanceolate , Linear
Leaf Venation: Parallel
Leaf Pubescence: Glabrous
Fruit Type: Caryopsis
Size Notes: Up to about 40 inches tall.
Leaf: Greenish-blue

Bloom Information

Bloom Color: Not Applicable
Bloom Time: Aug , Sep , Oct
Bloom Notes: This plant has florets (flowers) above ground which are not fertile and below ground.


USA: AL , FL , GA , NC , SC
Native Habitat: Ponds, clay-based bays, wetlands and freshwater floodplains, but it can occasionally be found in upland sites. It is well adapted to acid to neutral sandy soils that are wet for part of the year.

Growing Conditions

Light Requirement: Sun , Part Shade

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


Record Modified: 2022-11-14
Research By: DEW

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