Ophioglossum vulgatum | |
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Secure (NatureServe) |
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Scientific classification | |
Kingdom: | Plantae |
Division: | Pteridophyta |
Class: | Psilotopsida |
Order: | Ophioglossales |
Family: | Ophioglossaceae |
Genus: | Ophioglossum |
Species: | O. vulgatum |
Binomial name | |
Ophioglossum vulgatum L. |
Ophioglossum vulgatum, commonly known as adder's-tongue,southern adders-tongue or adders-tongue fern, is a species of fern in the family Ophioglossaceae.
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.
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.