Callitriche heterophylla Pursh var. heterophylla
greater water starwort, two-headed water starwort, variable water starwort
greater water starwort, two-headed water starwort, variable water starwort
April 27,
Myles Standish State Forest, Carver
Unisexual staminate flower consists of a single stamen (no perianth). Plants are monoecious (male/staminate and female/carpellate flowers on same plants), flowering from spring to fall.