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Ammannia coccinea
Also called Purple Ammannia, Scarlet Toothcup, Toothcup, Purple Ammannia, Long Leaved Ammania
Ammannia coccinea is a species of flowering plant in the loosestrife family known by several common names, including valley redstem, scarlet toothcup, and purple ammannia. It is native to most of the contiguous United States, with the exception of the Pacific Northwest and New England. It is generally found in moist areas, such as riverbanks and pond margins. It is weedy in some areas. This is an annual herb growing erect to heights approaching one meter or lying along the ground. Leaves are linear in shape, up to 8 centimeters long, and green to shades of deep red in color. The inflorescence is a cluster of 3 to 5 flowers growing in the leaf axils along the upper part of the stem. The rounded flower has small rose to lavender petals each a few millimeters long and protruding stamens with yellow anthers.
Ammannia arnhemica · Eared redstem · Monarch redstem · Ammannia crinipes · Ammannia fitzgeraldii · Delicate Ammania · Ammannia muelleri · Eared Redstem · Ammannia pubescens · Grand redstem · Red Ammannia · Ammannia striatiflora
Text excerpted from the Wikipedia article Ammannia coccinea by its contributors, under CC BY-SA 4.0; the excerpts are shared under the same licence.
Life form, climate and native range: World Checklist of Vascular Plants, Royal Botanic Gardens, Kew (CC BY 3.0), reformatted; see Plants of the World Online.
