4 petals, stalkless
This flower was photographed along side of the Brazos river. Typically found in shallow water or mud of ditches and ponds. Distinctly four-angled stems. Up to 2 ft. in height.
Flower: Small, stalkless cluster from the leaf axils. 1/8 in. across. Four deep pink to purple petals that drop early, leaving the persistent four-angled, toothed calyx.
Leaves: Opposite linear shaped leaves clasping the stem with ear-like lobes.
Seedpod: When mature, capsule is globelike and filled with yellow or reddish seeds.
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