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Photographer: Steve C. Garske
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Family Haloragaceae
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"
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| Status: | Native |
| 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 |
| (Glossary) |
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