Post by Melanie on Jan 26, 2007 19:20:07 GMT 1
Carex wahuensis ssp herbstii
A Sedge Description (Code)
Global Rank: Vulnerable; Subspecies Critically Imperiled (G3T1)
Endangered Species Act Rank: Species of Concern (SOC)
Species Description
Rhizomatous perennials forming dense clumps. Culms slender, up to 10 cm tall. Leaves narrow, 6-9 cm long, 1.5-2 mm wide. Spikes unisexual, with the terminal spike linear and staminate, and the 2 lateral ones broader, 8-15 mm long, 5 mm wide, and pistillate.
Habitat
The only known occurrence of this taxon is in a moist habitat on a cliff face with vegetation consisting of grasses, sedges, and shrubs.
Global Range
Carex wahuensis ssp. Herbstii has been recorded at only one site on the island of Oahu in the state of Hawaii. This site is a small cliff face in the koolau range, inland of honolulu, and leeward (southwest) of the main spine of the mountain range. Only a few scattered plants have been seen at this site. There have not been any systematic searches for additional occurrences.
Global Threats
Threats to the taxon include feral pigs and invasive alien plants.
Permanence
Perennial.
Taxonomic Comments
Genus cosmopolitan, species endemic to all of the main islands except niihau and kahoolawe, subspecies endemic to koolau mts. Of oahu.
A Sedge Description (Code)
Global Rank: Vulnerable; Subspecies Critically Imperiled (G3T1)
Endangered Species Act Rank: Species of Concern (SOC)
Species Description
Rhizomatous perennials forming dense clumps. Culms slender, up to 10 cm tall. Leaves narrow, 6-9 cm long, 1.5-2 mm wide. Spikes unisexual, with the terminal spike linear and staminate, and the 2 lateral ones broader, 8-15 mm long, 5 mm wide, and pistillate.
Habitat
The only known occurrence of this taxon is in a moist habitat on a cliff face with vegetation consisting of grasses, sedges, and shrubs.
Global Range
Carex wahuensis ssp. Herbstii has been recorded at only one site on the island of Oahu in the state of Hawaii. This site is a small cliff face in the koolau range, inland of honolulu, and leeward (southwest) of the main spine of the mountain range. Only a few scattered plants have been seen at this site. There have not been any systematic searches for additional occurrences.
Global Threats
Threats to the taxon include feral pigs and invasive alien plants.
Permanence
Perennial.
Taxonomic Comments
Genus cosmopolitan, species endemic to all of the main islands except niihau and kahoolawe, subspecies endemic to koolau mts. Of oahu.
