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Old World Climbing Fern

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Old world climbing fern
Scientific Name:
Lygodium microphyllum (Cav.) R. Br. (ITIS)
Lygodium scandens (Pemberton 1998)
Common Name:
Old World climbing fern, small leaf climbing fern
Old world climbing fern foliage, fertile fronds - Photo by Amy Ferriter; State of Idaho
Native To:
Africa, Australia, and southeast Asia (Pemberton et al. 2002)
Date of U.S. Introduction:
First found naturalized in the 1960s (Langeland and Hutchinson 2016)
Means of Introduction:
Introduced as an ornamental (Pemberton et al. 2002)
Smothers native vegetation and increases fire risk by allowing fire to spread up trees along its vines (Langeland and Hutchinson 2016)
Current U.S. Distribution:

Distribution/Maps/Survey Status


  • USDA. APHIS. Plant Protection and Quarantine.

    A Federal Order is a legal document issued in response to an emergency when the Administrator of APHIS considers it necessary to take regulatory action to protect agriculture or prevent the entry and establishment into the United States of a pest or disease. Federal Orders are effective immediately and contain the specific regulatory requirements.

Federally Regulated

  • USDA. APHIS. Plant Protection and Quarantine.

    Includes species listed as a Federal Noxious Weed under the Plant Protection Act, which makes it illegal in the U.S. to import or transport between States without a permit.



Selected Resources

The section below contains highly relevant resources for this species, organized by source. Or, to display all related content view all resources for Old World Climbing Fern.

Council or Task Force

Florida Exotic Pest Plant Council.

See also: Publications - Flyers for more climbing fern resources


USDA. APHIS. PPQ. Center for Plant Health Science and Technology; California Department of Food and Agriculture.

IUCN. Species Survival Commission. Invasive Species Specialist Group.
University of Georgia. Center for Invasive Species and Ecosystem Health.
USDA. FS. Institute of Pacific Islands Forestry.
Everglades Cooperative Invasive Species Management Area.

Texas Commission on Environmental Quality, Galveston Bay Estuary Program; Houston Advanced Research Center (HARC).

Federal Government

USDA. FS. Rocky Mountain Research Station. Fire Sciences Laboratory.
Smithsonian Institution. Smithsonian Marine Station at Fort Pierce.
USDA. NRCS. National Plant Data Center.
USDA. ARS. National Genetic Resources Program. GRIN-Global.

State and Local Government

Florida Fish and Wildlife Conservation Commission.


University of Florida. Institute of Food and Agricultural Sciences Extension.
Electronic Data Information Source - publication resources

University of Florida. IFAS. Center for Aquatic and Invasive Plants.

University of Florida. Institute of Food and Agricultural Sciences Extension. TAME Invasives Portal.