Doryopteris takeuchii

Doryopteris takeuchii

image of Doryopteris takeuchii

Names

  • ʻŌlelo Hawaiʻi: n/a
  • Scientific: Doryopteris takeuchii

Conservation Status

  • Federal and State Listed as Endangered

Species Information

Doryopteris takeuchii, a member of the Pteridaceae (maidenhair fern) family, is a terrestrial fern with creeping to erect rhizomes (a horizontal underground stem that sends out both shoots and roots) bearing a cluster of stipe (frond stalk) bases. Stipes are round dark maroon to black, and smooth except at the very base.  The rachis (midrib of the frond) is unwinged between the two lower sets of pinnae, and often between the second and third pinnae pairs. Pinnules (second pinnae division) and ultimate segments are ovate to linear, slightly tapering to obtuse tips. The fused sori usually extend to the segment tips (“No Common Name (Doryopteris Takeuchii),” n.d.).

Distribution

Endemic to Le’ahi (Diamond Head) on O’ahu.

Habitat

Inner and outer slope of Le’ahi, which is lowland dry shrubland.

Threats

  • Competition with alien invasive plants
  • Small population size
  • Wildfire
  • Erosion/trampling by visitors who go off the trail
  • Landslides and rockfalls

References & Additional Resources

“No Common Name (Doryopteris Takeuchii).” ECOS, https://ecos.fws.gov/ecp/species/1681.

Photos