| Author | Rafinesque | |
| Distribution | Essentially throughout the state.
This is one of the most numerous pondweeds in the country, being widespread across the U.S., from VT and OR south to southern FL, TX. and CA.
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| Abundance | Frequent to common in the Coastal Plain; fairly common to locally frequent in the rest of the state. Scarce at higher elevations in the Mountains. This is the only pondweed in NC with a State Rank of S5. | |
| Habitat | This is a species of a variety of still waters -- pools, ponds, lakes, beaver ponds, and less so streams and ditches. |
| Phenology | Flowers and fruits from June to September. | |
| Identification | This is a quite familiar aquatic species across the state, often noted by the small, elliptical floating leaves. The stem is usually freely branched, growing to about 1.5 feet tall. The submerged leaves are narrowly linear to filiform, about 2-3 inches long. The floating leaves are elliptical, only about 3/4-inch long and 1/3 - 1/2 as wide, with long and slender petioles, slightly shorter than the leaves. Each leaf usually has 7 nerves/veins. The plant has numerous spikes, the upper ones cylindrical, about 1/2-inch long, and on slender stalks. | |
| Taxonomic Comments | None
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| Other Common Name(s) | Diverse-leaved Pondweed, Common Snailseed Pondweed | |
| State Rank | S5 | |
| Global Rank | G5 | |
| State Status | | |
| US Status | | |
| USACE-agcp | OBL link |
| USACE-emp | OBL link |
