Native Plants
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Ammannia robusta
Ammannia robusta Heer & Regel
Grand Redstem
Lythraceae (Loosestrife Family)
Synonym(s): Ammannia coccinea ssp. robusta, Ludwigia scabriuscula
USDA Symbol: AMRO3
USDA Native Status: L48 (N), CAN (N)
Found only at two sites in Canada, one in southern B.C. and one in southwestern Ontario. Species is common in United States.
From the Image Gallery
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Plant Characteristics
Duration: AnnualHabit: Herb
Fruit Type: Capsule
Size Notes: Up to about 40 inches tall.
Bloom Information
Bloom Color: Pink , PurpleBloom Time: May , Jun , Jul , Aug , Sep , Oct , Nov
Distribution
USA: AR , AZ , CA , CO , IA , ID , IL , IN , KS , KY , LA , MI , MN , MO , MT , ND , NE , NJ , NV , OH , OK , OR , SD , TN , TX , UT , WA , WYCanada: BC , ON
Native Habitat: Fresh Water Aquatic
Growing Conditions
Soil Moisture: WetNational Wetland Indicator Status
Region: | AGCP | AK | AW | CB | EMP | GP | HI | MW | NCNE | WMVE |
Status: | OBL | OBL | OBL | OBL | OBL | OBL | OBL |
Web Reference
Webref 30 - Calflora (2018) CalfloraWebref 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 Ammannia robusta in USDA PlantsFNA: Find Ammannia robusta in the Flora of North America (if available)
Google: Search Google for Ammannia robusta
Metadata
Record Modified: 2022-11-02Research By: TWC Staff