- Colocasia esculenta is a perennial forb that originates from a large corm and can grow to 4 ft. (1.5 m) in height.
- Leaves, supported by 3 ft. (1 m) long petioles, are arrowhead shaped, up to 2 ft. (0.6 m) long and 1.6 ft. (0.5 m) wide, peltate and velvety on the upper surface.
- Flowering seldom occurs outside of the native range. Flowers, when present, are small and densely crowded at the apex of a fleshy stalk.
- Plants spread vegetatively through rhizomes, stolons, offshoot corms or vegetative fragments. Fruit are small berries, but are rarely produced.
- Ecological Threat
- Colocasia esculenta can tolerate a wide range of wet to dry sites. It easily invades wetland edges, swamps, blackwater streams and riverine forests. Colocasia esculenta can form dense stands outcompeting native plants. It is native to Africa and was first brought to the Americas as a food crop for slaves. In 1910, Colocasia esculenta was also promoted as an alternative crop to potatoes by the USDA. There are similar native species and some similar exotic species but in all of these similar species their petioles attach to the margin of the leaf blades rather than in the middle as with Colocasia esculenta.
- Invasive Species Management Plans for Florida - University of Florida - Center for Aquatic and Invasive Plants
- Identification and Biology of Non-Native Plants in Florida's Natural Areas - University of Florida
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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 Invasive List - This map identifies those states that list this species on their invasive species list. For more information, visit Invasive.org
Invasive Listing Sources
- Alabama Invasive Plant Council
- Alachua County Cogongrass Initiative
- Apalachicola Invasive Working Group
- Archbold Biological Station
- East Central Florida CISMA
- Faith Campbell, 1998
- Florida Exotic Pest Plant Council - Category I
- Georgia Exotic Pest Plant Council - Category 3
- Nonnative Invasive Species in Southern Forest and Grassland Ecosystems
- South Carolina Exotic Pest Plant Council - Watch A
- Treasure Coast Cooperative Invasive Species Mgmt. Area - EARLY DRAFT
- WeedUS - Database of Plants Invading Natural Areas in the United States
Other System LinksPlants: COES
NPDN Pest: PAKAHBA
NPDN Host: 31703
|Common Name Reference:|| USDA, NRCS. 2010. The PLANTS Database. National Plant Data Center, Baton Rouge, LA, USA.|
|Scientific Name Reference:||USDA, NRCS. 2010. The PLANTS Database. National Plant Data Center, Baton Rouge, LA, USA.|