Aquatic and Wetland Vascular Plants Aquatic and Wetland Vascular Plants of the Northern Great Plains 30. Lythraceae, the Loosestrife Family 1.
Calyx tube ca.
Capsules 4-6 mm in diameter at maturity, enclosed by or equaling the calyx. The great majority of plants in our region formerly identified as A. coccinea are actually A. robusta . Ammannia robusta , with enlargement of an axillary fruit cluster.