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| Arrow-shaped, lance-shaped, or oval smooth leaves on long petioles that sheath the stem. Flowers usually in whorls of 3 with 3, usually white, roundish petals. Found in wet places. | |
| Flora of North America: Discussion, key to genera (opens new window) | |
| Flower Formula: Sepals 3; Petals 3 | Glossary |
| Genus (Click for Taxon List) |
WI Taxa (map link) |
Photo | Genus Traits | Google Searches |
|---|---|---|---|---|
| Alisma
water-plantain |
3 |  |
Flowers on a widely branching cluster. Leaves elliptical or egg-shaped |
Images Information |
| Echinodorus
bur-head |
1 |  |
Flowers in open umbels, leafless stems, leaves oval to lance-shaped, fruit a spiny burr. |
Images Information |
| Sagittaria
arrow-head |
7 |  |
Flowers in whorl of usually 3 from unbranched stalk. Leaves linear, oval or arrow-shaped |
Images Information |
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