| Asplenium adiantum-nigrum | |
|---|---|
| | |
| Scientific classification | |
| Kingdom: | Plantae |
| Clade: | Tracheophytes |
| Division: | Polypodiophyta |
| Class: | Polypodiopsida |
| Order: | Polypodiales |
| Suborder: | Aspleniineae |
| Family: | Aspleniaceae |
| Genus: | Asplenium |
| Species: | A. adiantum-nigrum |
| Binomial name | |
| Asplenium adiantum-nigrum | |
| Synonyms [2] | |
Asplenium adiantum-nigrum is a common species of fern known by the common name black spleenwort. [3] It is found mostly in Africa, Europe, and Eurasia, but is also native to a few locales in Mexico and the United States. [3] [4]
This spleenwort has thick, triangular leaf blades up to 10 centimeters long which are divided into several subdivided segments. It is borne on a reddish green petiole and the rachis is shiny and slightly hairy. The undersides of each leaf segment have one or more sori [4] arranged in chains. [5]
Linnaeus was the first to describe black spleenwort with the binomial Asplenium adiantum-nigrum in his Species Plantarum of 1753. [6]
A chloroplast phylogeny verified the allopolyploid origin of A. adiantum-nigrum, with A. cuneifolium supplying the paternal genome and A. onopteris the maternal genome. [7]
In Hawaii, this native fern grows on cinder cones and lava flows, [8] and it is present in Hawaii Volcanoes National Park. [5]
Annotation: as "Adiant. nigrum"