| Nephrophyllidium | |
|---|---|
) | |
Scientific classification  | |
| Kingdom: | Plantae |
| Clade: | Tracheophytes |
| Clade: | Angiosperms |
| Clade: | Eudicots |
| Clade: | Asterids |
| Order: | Asterales |
| Family: | Menyanthaceae |
| Genus: | Nephrophyllidium Gilg 1895 |
| Species: | N. crista-galli |
| Binomial name | |
| Nephrophyllidium crista-galli | |
| Synonyms | |
| |
Nephrophyllidium is a monotypic genus of aquatic flowering plants in the family Menyanthaceae. The sole species is Nephrophyllidium crista-galli. They are wetland plants with basal reniform and crenate leaves. Flowers are five-parted and white, and the petals are adorned with lateral wings and a midline keel. Nephrophyllidium is most nearly related to Menyanthes, which is very similar in habit. The genus name is derived from the kidney-shaped leaves (Greek: nephros = kidney and phyllon = leaf), and the specific epithet refers to the curled petal edges (Latin: crista galli = cockscomb).
Nephrophyllidium crista-galli is found in the Pacific Northwest of America, and in Japan, where it can be called subspecies japonicum (Franch.) Yonek. & H.Ohashi. Nephrophyllidium is commonly known as deer cabbage.
The IAPT determined that a prior synonym for the genus, Fauria Franch., too closely resembled the genus Faurea (Proteaceae), and thus conserved Nephrophyllidium as the accepted genus name.
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