Hydatellales


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Hydatellales

[‚hī·dad·ə′lā·lēz]
(botany)
An order of monocotyledonous flowering plants, division Magnoliophyta, of the class Liliopsida, characterized by small, submersed or partly submersed aquatic annuals with greatly simplified internal anatomy; consists of a single family with five species native to Australia, New Zealand, and Tasmania.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.