Cyclosorus boydiae 

Scope: Global
Language: English

Translate page into:

Taxonomy [top]

Kingdom Phylum Class Order Family
Plantae Tracheophyta Polypodiopsida Polypodiales Thelypteridaceae

Scientific Name: Cyclosorus boydiae (A.A.Eaton) W.H.Wagner
Common Name(s):
English Boyd's Maidenfern
Aspidium boydiae A.A.Eaton
Christella boydiae (A.A.Eaton) Holttum
Thelypteris boydiae (A.A.Eaton) K.Iwats.
Taxonomic Notes: Moved several times over last 10 years between Thelypteris, Cyclosorus and Christella. Previous treatments included two varieties, which are no longer recognised.

Assessment Information [top]

Red List Category & Criteria: Endangered A2c ver 3.1
Year Published: 2006
Date Assessed: 2006-01-31
Needs updating
Assessor(s): Caraway, V. & Bruegmann, M.M.
Reviewer(s): Maunder, M. (Plant Conservation Committee) & Pollock, C.M. (Red List Programme Office)
Estimated population size reduction of at least 50% in last 10 years, decline in area of occupancy and quality of habitat.
Previously published Red List assessments:

Geographic Range [top]

Range Description:Found on islands of Maui and Oahu and extirpated on Hawaii.
Countries occurrence:
United States (Hawaiian Is.)
Additional data:
Range Map:Click here to open the map viewer and explore range.

Population [top]

Population:Three populations totaling 350–410 individuals.
Current Population Trend:Decreasing
Additional data:

Habitat and Ecology [top]

Habitat and Ecology:This species grows only along streams in wet forests, on streambanks or next to waterfalls.

Threats [top]

Major Threat(s): Threats include feral pigs, goats, weeds and flooding.

Citation: Caraway, V. & Bruegmann, M.M. 2006. Cyclosorus boydiae. The IUCN Red List of Threatened Species 2006: e.T61423A12480183. . Downloaded on 16 August 2018.
Disclaimer: To make use of this information, please check the <Terms of Use>.
Feedback: If you see any errors or have any questions or suggestions on what is shown on this page, please provide us with feedback so that we can correct or extend the information provided