AS SEEN IN Northeast Aquatic Plant Management Society Nor’Easter Newsletter
Written by Industry Experts Emily Mayer, Aquatic Biologist and Kate Arnao, seasonal team member
As its name suggests, mudmat (Glossostigma cleistanthum) is an invasive aquatic plant species that forms dense, green mats in littoral zones. The iconic bunny ear-shaped leaves of mudmat serve as a unique characteristic when identifying this species. The leaves grow in pairs along thin rhizomes, with narrowing stems at the base and widen into an oval shape at the tips.
Mudmat can thrive both as a submerged and emergent plant depending upon the location within the waterbody. This species generally prefers oligotrophic conditions, consisting of high transparency readings, low pH, and low pond nutrients. They can form “carpet-like” mats along the bottom of waterbodies, averaging from 10,000 to 25,000 plants per square meter, and can reach depths of up to two meters.