Fanwort (Cabomba caroliniana)

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  1.   1.  Description
    1.   1.1  Growth
    2.   1.2  Obtainment
  2.   2.  More
  3.   3.  'Souls
Common Name Fanwort
Latin Name Cabomba caroliniana
The invasive species, Fanwort. (SandyRichard@Flickr)

1.  Description

Fanwort is a submersed, sometimes floating, but often rooted, freshwater perennial plant with short, fragile rhizomes. The erect shoots are upturned extensions of the horizontal rhizomes. The shoots are grass green to olive green or sometimes reddish brown. The leaves are of two types: submersed and floating. The submersed leaves are finely divided and arranged in pairs on the stem. The floating leaves, when present, are linear and inconspicuous, with an alternate arrangement. They are less than 1/2 inch (13 mm) long and narrow (less than 1/4 inch or 6 mm). The leaf blade attaches to the centre, where there is a slight constriction. The flowers are white and small (less than 1/2 inch (13 mm) in diameter), and are on stalks which arise from the tips of the stems.

1.1  Growth

The plant is aquatic -- it grows only in water. It is extremely fast-growing; it grows rooted in the mud of stagnant to slow flowing water, including streams, smaller rivers, lakes, ponds, sloughs, and ditches. Fanwort stems become brittle in late summer, which causes the plant to break apart, facilitating its distribution and invasion of new waterbodies.

1.2  Obtainment

Common -- Despite being non-native, fanwort has become a pest in Nova Scotia. Fanwort can be seen growing rampantly in some of the lakes and slower-moving rivers of 'Souls. Use in the aquarium trade led to some species being introduced to parts of the world where they have become pestilential weeds. It has no known use.

2.  More

3.  'Souls

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