American water-willow

Quick look

Dianthera americana, commonly known as the American water-willow, is an herbaceous, aquatic flowering plant in the family Acanthaceae. This perennial species is native to North America, and can typically be found in abundance throughout the eastern half of the continent along shorelines, in lakes or ponds, or in the shallow riffles of streams and rivers.

• It belongs to the Acanthaceae family. ^iNaturalist
• USDA PLANTS describes it as an herb (forb) with a perennial life cycle. ^{USDA PLANTS}
• USDA PLANTS lists it as native in the lower 48 states and records it in 28 states. ^{USDA PLANTS}
• NatureServe lists it as native to Arkansas. ^NatureServe
• In Arkansas, most iNaturalist sightings of it in flower come in May–September. ^iNaturalist
• USDA PLANTS lists its flower color as white. ^{USDA PLANTS}
• USDA PLANTS gives its bloom period as late spring. ^{USDA PLANTS}
• USDA PLANTS lists a mature height of about 2.5 ft. ^{USDA PLANTS}
• iNaturalist has 650 research-grade sightings of it in Arkansas, ranking #76 among the 109 flowers on our Arkansas list. ^iNaturalist