Class
Family
Aquatic, scapose, perennial herbs, with globose tubers. Leaves floating or erect, usually long-petioled. Inflorescence of 1–2–(5) spikes, often enclosed at first in a caducous sheath. Flowers bisexual, rarely unisexual; segments 3–1 or 0, petaloid or bract-like, usually persistent. Stamens 5–18, free, hypogynous; filaments usually flattened; anthers 2-celled, dehiscing by longitudinal slits. Carpels 2–6, free, superior, sessile. Ovules 2 or more, basal. Fruit of 3–(8) hardened follicles. Seeds 4–8, oblong or cylindric.
[From: Healy and Edgar (1980) Flora of New Zealand. Volume 3. (Aponogetonaceae)]
Category | Number |
---|---|
Exotic: Fully Naturalised | 1 |
Total | 1 |