Photographer: Steve C. Garske
Myriophyllum heterophyllum Michx.
two-leaf water-milfoil, various-leaved water-milfoil
Myriophyllum: from Greek myrios, "numberless," and phyllon, "leaf," alluding to the many divisions of the submerged leaves of these aquatic plants
heterophyllum: heteros for "varied" and phylla for "leaves"
|Plant: ||perennial, submersed aquatic; from hardy rhizomes|
|Flower: ||red to pink, 4-parted, small, with no winter buds; inflorescence a 2"-6" clustered spike held above the water with flowers from the axils of the sharply-toothed, whorled bracts|
|Fruit:||hard, 4-parted with a curved beak|
|Leaf:||mostly in closely-spaced whorls but some scattered, short-stalked; finely pinnately-divided into 7-10 thread-like, paired leaflets|
|Habitat: ||water to 16' deep; in sediment soil|