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Asplenium scolopendrium var. americanum (Fern.) Kartesz & Gandhi
American hart's-tongue fern
Aspleniaceae (Spleenwort Family)
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.
From the Image Gallery
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Plant Characteristics
Duration: PerennialHabit: Herb , Fern
Leaf Retention: Evergreen
Flower:
Fruit:
Bloom Information
Bloom Color: Not ApplicableBloom Notes: Not a flowering plant. Reproduces by spores.
Distribution
USA: AL , MD , MI , NY , TNCanada: 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 Conditions
Light Requirement: Sun , Part Shade , ShadeSoil 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:Amandas Garden - Springwater, NY
Bibliography
Bibref 1231 - Guide To the Ferns of Grey and Bruce Counties, Ontario (1999) Owen Sound Field NaturalistsSearch More Titles in Bibliography
Web Reference
Webref 3 - Flora of North America (2008) Missouri Botanical Garden, St. Louis, MO & Harvard University Herbaria, Cambridge, MA.Webref 12 - Great Lakes Ecological Assessment: Threatened, Endangered, or Sensitive Species (2012) USDA Natural Resources Conservation Service
Recommended Species Lists
Find native plant species by state. Each list contains commercially available species suitable for gardens and planned landscapes. Once you have selected a collection, you can browse the collection or search within it using the combination search.
View Recommended Species pageAdditional resources
USDA: Find Asplenium scolopendrium var. americanum in USDA PlantsFNA: Find Asplenium scolopendrium var. americanum in the Flora of North America (if available)
Google: Search Google for Asplenium scolopendrium var. americanum
Metadata
Record Modified: 2012-10-11Research By: TWC Staff
