Swaziland's Alien Plants Database

Elodea canadensis Michx. HYDROCHARITACEAE Canadian water weed Unknown, Swaziland Status Unknown Origin: Temperate N America. Growth Form: Aquatic herb Plant Description: Plant: Submerged aquatic plant with slender stems up to 3 m long. Leaves: Green, finely serrated; 5–15 mm long, usually in whorls of three, rarely four. Flowers: Yellow or cream, three-petalled; flowers 3–5 mm across, on long, thread-like stalks and float on water surface. Fruit: None seen; propagation by stem fragmentation. Key Features: Control: Comments:

KEY   Confirmed (herbarium specimen)   Visual record   Suspected Click on map grid square to view record information for each grid square.

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