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Asplenium scolopendrium var. americanum (Fern.) Kartesz & Gandhi
American hart's-tongue fern
USDA Symbol: ASSCA
USDA Native Status: Native to U.S.
In North America at the present time, Asplenium scolopendrium is an endangered species everywhere outside of Ontario, where it is found along the Niagara Escarpment growing in crevasses and north facing slopes (Ferns of Grey and Bruce Counties). Variety americanum occurs in scattered populations in deep shade and rocky, calcareous soil in Ontario, Michigan, New York, Tennessee, Alabama, and Nuevo Leon. The species proper ranges across western Eurasia, where it is common, and adds Oaxaca, Chiapas, and Hispaniola to the aforementioned locales. Listed as a species of special concern by Canadas Species at Risk Act and as threatened by the United States government and by the state of New York. Tennessee and Michigan classify it as endangered.
Bloom InformationBloom Color: Not Applicable
Bloom Notes: Not a flowering plant. Reproduces by spores.
AL , MD , MI , NY , TN Canada: ON Native Distribution:
Scattered spottily from southern Ontario to New York, Michigan, Tennessee, Alabama, and Nuevo Leon. Native Habitat:
Forest,Riparian,Rocky Bluff, in deep shade and calcareous soil. USDA Native Status: L48(N), CAN(N)
Growing ConditionsLight Requirement: Sun , Part Shade , Shade
Soil Moisture: Moist
Soil pH: Alkaline (pH>7.2)
CaCO3 Tolerance: High
From the National Suppliers Directory
According to the inventory provided by Associate Suppliers, this plant is available at the following locations:
- Springwater, NY
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Record Modified: 2012-10-11
Research By: TWC Staff