Colors

Data mode

Account

Login
Sign up

Copy permalink to share

Zannichellia Linnaeus. Horned Pondweed.

A genus of about 5 species, aquatic herbs, nearly cosmopolitan.

ID notes:Zannichellia is sometimes confused with other aquatics, such as Ruppia and narrow-leaved Potamogeton. Potamogeton has at least some leaves alternate; Zannichellia and Ruppia are opposite-leaved. Zannichellia lacks the abruptly broadened sheath of Najas. Also, the seeds are flattened in Zannichellia, and toothed down one side; Najas has a cylindric or elliptic fruit. Zannichellia has longer leaves (3-10 cm long) than Najas (< 4 cm long).

Ref: Haynes & Hellquist (2000d) In Flora of North America Editorial Committee (2000); Haynes & Holm-Nielsen (1987). Show full citations.

Show in key(s)

Show parent family

Show species in Zannichellia

Your browser does not support SVGs

Hover over a shape, letter, icon, or arrow on the map for definition or see the legend. Data for arrows not developed for genera and families which may have species only occurring outside the flora area.

image of plant© Alaina Krakowiak, some rights reserved (CC BY-NC), uploaded by Alaina Krakowiak | Zannichellia palustris source | Original Image ⭷
image of plant© Svetlana Nesterova, some rights reserved (CC BY-NC), uploaded by Svetlana Nesterova | Zannichellia palustris source | Original Image ⭷
image of plant© Radford, Ahles and Bell | Zannichellia palustris | Original Image ⭷

Feedback

See something wrong or missing on about Zannichellia? Let us know here:


Cite as...