Carex kobomugi


Mem. Coll. Sci. Kyoto Imp. Univ. Ser. B, Biol. 5(3): 21930.

Common names: Sea Isle Japanese sedge
Synonyms: Carex macrocephala var. kobomugi (Ohwi) Miyabe & Kudô
Treatment appears in FNA Volume 23. Mentioned on page 308.

Culms bluntly angled, smooth or slightly serrulate on 1 angle distally, 10–30 cm. Inflorescences with pistillate heads 2–4 cm wide; proximal spikes appressed to ascending. Pistillate scales green or gold with distal margins white or pale gold, 0.7–1 mm wide, apex long- or short-tapered with awn to 6–12 mm. Anthers 4–6.5 mm. Perigynia appressed-ascending to ascending, with shallowly erose wing 0.4–0.6 mm wide, base acute; beak ± falcate, 3–5 mm from apex to achene, apex notched 0.4–0.6 mm adaxially. Achenes 4–7 × 1.5–2.5 mm.

Phenology: Fruiting spring–summer.
Habitat: Sandy beaches along seacoasts, sounds, bays, and inlets
Elevation: 0 m


V23 538-distribution-map.jpg

Introduced; Del., Md., N.J., N.Y., N.C., Oreg., R.I., Va., native e Asia.


Before Carex kobomugi was formally recognized it was included in C. macrocephala Willdenow ex Sprengel. Carex kobomugi was collected during the early 1900s from ballast and sand near Portland, Oregon, but recent collections are not known; the habitat there may no longer exist. Clones of C. kobomugi have been registered by the U.S. Soil Conservation Service and the New Jersey Agricultural Experiment Station for long-term stabilization of coastal sand dunes. Its introduced range will likely expand.

Selected References


Lower Taxa

... more about "Carex kobomugi"
Joy Mastrogiuseppe +
Sea Isle Japanese sedge +
Del. +, Md. +, N.J. +, N.Y. +, N.C. +, Oreg. +, R.I. +, Va. +  and native e Asia. +
Sandy beaches along seacoasts, sounds, bays, and inlets +
Fruiting spring–summer. +
Mem. Coll. Sci. Kyoto Imp. Univ. Ser. B, Biol. +
Introduced +  and Illustrated +
Carex macrocephala var. kobomugi +
Carex kobomugi +
Carex sect. Macrocephalae +
species +