Ophioglossum vulgatum, commonly known as adder's-tongue, southern adders-tongue or adders-tongue fern, is a species of fern in the family Ophioglossaceae.
The adder’s tongue fern is generally believed to have the largest number of chromosomes with 1262, compared to the human’s 46.
It is native to many regions with a wide scattered distribution: throughout temperate through tropical Africa and throughout the temperate Northern Hemisphere in Europe, northeastern North America, temperate Asia, and Eurasia.
This small, hard-to-spot plant can occur singly in unimproved pastures, rock crevices and grassy path-sides, but also can occur in colonies of hundreds of plants in sand dunes.
Ophioglossum vulgatum grows from a rhizome base to 10–20 cm tall (rarely to 30 cm). It consists of a two-part frond, separated into a rounded diamond-shaped sheath and narrow spore-bearing spike. The spike has around 10-40 segments on each side.
It reproduces by means of spores.
This species is rare in most European countries. In Ukraine, there were recorded 280 loci: 152 before 1980, after 1980 – 120, as before and after 1980 – 8 locations.
Traditional European folk use of leaves and rhizomes as a poultice for wounds. This remedy was sometimes called the "Green Oil of Charity". A tea made from the leaves was used as a traditional European folk remedy for internal bleeding and vomiting.
Linnaeus described adder's-tongue with the binomial Ophioglossum vulgatum in his Species Plantarum of 1753.
- ^ Stace, Clive (2010b), New Flora of the British Isles (3rd ed.), Cambridge, UK: Cambridge University Press, ISBN 978-0-521-70772-5, p. 9
- ^ a b "Ophioglossum vulgatum". Germplasm Resources Information Network (GRIN). Agricultural Research Service (ARS), United States Department of Agriculture (USDA). Retrieved 2014-02-14.
- ^ USDA
- ^ Parnikoza I., Celka Z. An Archive of the Ophiglossaceae in Ukraine
- ^ Duke's Phytochemical and Ethnobotanical Databases: Ophioglossum vulgatum
- ^ Linnaeus, C. (1753). Species Plantarum. Vol. II (1st ed.). Stockholm: Laurentii Salvii. p. 1062.