Potamogeton deminutus Potamogeton pseudozizii Potamogeton methyensis Potamogeton zizii var. methyensis Potamogeton angustifolius var. methyensis Potamogeton gramineus var. spathuliformis Potamogeton gramineus f. spathuliformis Potamogeton pseudolucens
World Flora Online, http://www.worldfloraonline.org/, accessed June 20, 2024