Pteridophytes (Spore Producing Plants: Ferns and More) • Earth.com

Hart's-tongue

(Asplenium scolopendrium)

galery
en

Description

Asplenium scolopendrium, known as hart's-tongue or hart's-tongue fern (syn. Phyllitis scolopendrium) is a fern in the genus Asplenium, of the Northern Hemisphere. In North America it occurs in rare, widely scattered populations that have been given varietal status, A. scolopendrium var. americanum. Morphological differences are minor, but the North American populations are tetraploid. In the United States, A. scolopendrium var. americanum was declared endangered in 1989.[3] The reason that the European variety is relatively widespread, and the American variety a rarity, has apparently not been established. A third variety, A. scolopendrium var. lindenii, occurs in southern Mexico and Hispaniola

Taxonomic tree:

Domain:
Kingdom: Plantae
Phylum:
Class: Polypodiopsida
Order:Polypodiales
Family:Aspleniaceae
Genus:Asplenium
News coming your way
The biggest news about our planet delivered to you each day