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Invasive Plant Atlas of the USCyrtomium falcatum
Japanese netvein hollyfern
Synonym(s): Polystichum falcatum (L. f.) Diels
Family: Dryopteridaceae (Wood Fern Family)
Duration and Habit: Perennial Fern
Photographer:
Source: Vieux jardin botanique de G
Description
Japanese holly fern is an upright fern that forms a rounded mound up to 2 ft (60 cm) high and 3 ft (1 m) wide. It sports glossy, very dark green fronds on slender, arching stems. The individual pinnae are leathery, serrated with sharp points, and have a remarkable resemblance to holly leaves - thus the common name. Spores, light green when young and dark at maturity, adhere to the backs of specialized fronds. Japanese holly fern is evergreen in frostfree areas, but loses its fronds in colder climates (Floridata - http://www.floridata.com/ref/C/cyrt_fal.cfm)
Ecological Threat:
Biology & Spread:
History: Cyrtomium falcatum is native to east Asia and widely escaped from cultivation.
US Habitat: Brick or stone walls, rocky areas, mesic forests, and coastal bluffs
Distribution
US Nativity: Introduced to U.S.
Native Origin: Japan and East Asia
US States: AL, CA, CO, FL, GA, HI, LA, MS, NJ, NY, OH, OR, SC, TX, VA
Mapping
Invaders of Texas Map: Cyrtomium falcatum
EDDMapS: Cyrtomium falcatum
USDA Plants Texas County Map: Cyrtomium falcatum
Invaders of Texas Observations
List All Observations of Cyrtomium falcatum reported by Citizen Scientists
Resembles/Alternatives
Management
USE PESTICIDES WISELY: ALWAYS READ THE ENTIRE PESTICIDE LABEL CAREFULLY, FOLLOW ALL MIXING AND APPLICATION INSTRUCTIONS AND WEAR ALL RECOMMENDED PERSONAL PROTECTIVE GEAR AND CLOTHING. CONTACT YOUR STATE DEPARTMENT OF AGRICULTURE FOR ANY ADDITIONAL PESTICIDE USE REQUIREMENTS, RESTRICTIONS OR RECOMMENDATIONS. MENTION OF PESTICIDE PRODUCTS ON THIS WEB SITE DOES NOT CONSTITUTE ENDORSEMENT OF ANY MATERIAL.Online References
Google Search: Cyrtomium falcatum
Google Images: Cyrtomium falcatum
NatureServe Explorer: Cyrtomium falcatum
USDA Plants: Cyrtomium falcatum
Invasive Plant Atlas of the United States: Cyrtomium falcatum
Bugwood Network Images: Cyrtomium falcatum
Text References
Flora of North America Vol. 2. Accessed 20 November 2008: http://www.efloras.org/florataxon.aspx?flora_id=1&taxon_id=200004340
Data Source
