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Cressler, Alan

Myriophyllum laxum

Myriophyllum laxum Shuttlw. ex Chapm.

Loose Watermilfoil, Piedmont Watermilfoil, Lax Watermilfoil

Haloragaceae (Water Milfoil Family)

Synonym(s):

USDA Symbol: MYLA2

USDA Native Status: L48 (N)

From the Image Gallery

3 photo(s) available in the Image Gallery

Plant Characteristics

Duration: Perennial
Habit: Herb
Fruit Type: Schizocarp
Size Notes: Stems up to about 3 feet long, mostly submersed.

Bloom Information

Bloom Color: Pink
Bloom Time: Jun , Jul , Aug , Sep , Oct
Bloom Notes: Flowers obscure, but pinkish-green.

Distribution

USA: AL , FL , GA , MS , NC , SC

National Wetland Indicator Status

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

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

Metadata

Record Modified: 2023-04-05
Research By: Joseph A. Marcus

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