Adiantum jordanii
Encyclopedia
Adiantum jordanii is a perennial species of maidenhair fern known by the common name California maidenhair.

It is native to California and Baja California
Baja California
Baja California officially Estado Libre y Soberano de Baja California is one of the 31 states which, with the Federal District, comprise the 32 Federal Entities of Mexico. It is both the northernmost and westernmost state of Mexico. Before becoming a state in 1953, the area was known as the North...

. A. jordanii is found in the southernmost part of its range in Baja California with such flora associates as Mimulus aridus
Mimulus aridus
Mimulus aridus , syn. Diplacus aridus, is a species of monkeyflower with yellow blossoms.-Distribution:This species is native to San Diego County in Southern California, and to Baja California. In Baja California, Mimulus aridus occurs in association with Daucus pusillus and Adiantum...

and Daucus pusillus
Daucus pusillus
Daucus pusillus is a species of wild carrot known by the common names American wild carrot and rattlesnake weed. It is similar in appearance to other species and subspecies of wild carrot, with umbels of white or pinkish flowers....

.

Each trailing leaf may reach over half a meter in length and is made up of many rounded green segments. Each segment has two to four lobes and it may split between the lobes, the underside of each segment bearing one to four sori
Sorus
A sorus is a cluster of sporangia .In fungi and lichens, the sorus is surrounded by an external layer. In some red algae it may take the form of a depression into the thallus....

.

WARNING Adiantum jordanii is a carrier of Sudden Oak Death
Sudden oak death
Sudden Oak Death is the common name of a disease caused by the oomycete plant pathogen Phytophthora ramorum. The disease kills oak and other species of tree and has had devastating effects on the oak populations in California and Oregon as well as also being present in Europe...

 which is caused by the fungus-like oomycete, Phytophthora ramorum. The USDA enforces an import control, focusing intensely on areas (CA, OR, NY in U.S.A.) that are infected with Sudden Oak death. When sold, they must be identified by place of origin and must also be accompanied by a phytosanitary certificate
Phytosanitary certificate
Phytosanitary certificates or Fumigation certificates are issued to indicate that consignments of plants, plant products or other regulated articles meet specified phytosanitary import requirements and are in conformity with the certifying statement of the appropriate model certificate...

. Do not take cuttings from wild specimens.

Adiantum jordanii, from native plant nurseries, is used in native plant
Native plant
Native plant is a term to describe plants endemic or naturalized to a given area in geologic time.This includes plants that have developed, occur naturally, or existed for many years in an area...

 and wildlife gardens.

External links

The source of this article is wikipedia, the free encyclopedia.  The text of this article is licensed under the GFDL.
 
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