Carolina fanwort
Cabomba caroliniana A. Gray


Overview


Appearance
Cabomba caroliniana is a perennial submersed aquatic plant that is native to the southeastern United States. It has become an invasive problem in parts of the United States where it is not native. It can grow in water 3-10 ft. (0.9-3 m) deep with stems up to 6.5 ft. (2 m) long.
Foliage
Cabomba caroliniana has two types of leaves. The submerged leaves are opposite, fan-shaped, deeply dissected and about 2 in. (5 cm) wide. The small floating leaves are entire and linear elliptic in shape.
Flowers
The flowers are long stemmed 1.2-4 in. (3-10 cm). They are most often white with yellow at the center, but may occasionally be pink or purplish. The sepals and petals are about 0.5 in. (1.25 cm) across. The petals are auriculate at the their bases, and obovate in shape.
Fruit
The fruit is flask shaped.
Ecological Threat
Cabomba caroliniana can form extremely dense stands which can clog drainage systems and interfere with recreational activities such as swimming and boating. It is still sold in the aquarium trade. It is believed the introduction of Cabomba caroliniana outside of its native range is a result of improper disposal of aquarium contents. The plants are able to root from vegetative parts and thus are easily spread. In the north it appears that the seeds do not readily germinate. However, viable shoots have been observed in January beneath ice.

Resources


Selected Images



Maps



EDDMapS Distribution

EDDMapS Distribution - This map is incomplete and is based only on current site and county level reports made by experts, herbaria, and literature. For more information, visit www.eddmaps.org

State Regulated List

State Regulated List - This map identifies those states that list this species on their regulated list. For more information, visit Invasive.org

Taxonomic Rank


Kingdom: Plantae
Phylum: Magnoliophyta
Class: Magnoliopsida
Subclass: Magnoliidae
Order: Nymphaeales
Family: Cabombaceae
Genus: Cabomba
Subject: Cabomba caroliniana A. Gray

Categories


Plants - Aquatic Plants