Class
Order
Classification
Subordinate Taxa
Nomenclature
Scientific Name:
Menyanthaceae
Description
Aquatic or subaquatic perennial herbs with stems free-floating or rooted in the ground. Lvs usually alternate, sometimes opposite on flowering shoots; petiole sheathing at base. Infl. a fascicle, involucrate head, or simple paniculate cyme. Fls ☿, actinomorphic, 5-merous. Calyx deeply 5-lobed. Corolla 5-lobed, usually deeply so; lobes ± valvate in bud, with margins wing-like, and sometimes fimbriate or crested. Stamens 5, inserted on the sinuses between the corolla lobes or on the corolla tube; anthers sagittate, versatile. Ovary superior or semi-inferior, 1-locular, with 2 parietal placentae; style 1, 2-fid. Ovules few to numerous. Fr. capsular or indehiscent. Seeds endospermic, sometimes winged.
[From: Webb et al. (1988) Flora of New Zealand. Volume 4.]
Biostatus
| Category | Number |
|---|---|
| Indigenous (Non-endemic) | 1 |
| Exotic: Fully Naturalised | 1 |
| Exotic: Casual | 2 |
| Exotic: Presence uncertain | 1 |
| Total | 5 |
Bibliography
Cronquist, A. 1988: The evolution and classification of flowering plants. The New York Botanic Gardens, New York.
Mabberley, D.J. 2008: Mabberley's plant book, a portable dictionary of plants, their classification and uses. Edition 3. Cambridge University Press.
