Scientific Name

Carex okamotoi Ohwi 지리대사초

Subgenus classification

: Siderosticta.

Habitats

Occurs in Gangwon, Chungbuk, Chungnam, Gyeongbuk, Gyeongnam, Jeonbuk or Jeonnam.

Stem

Scattered growth, with basal sheath color light brown, and length about 13-18 cm.

Leaves

Leaves longer than the stem, similar to the stem or shorter than the stem, have glabrous surfaces, width about 4-8 mm.

Inflorescence

The number of spikes two or more. Spike shapes different (showing distinct sexual characteristics), with all spikes unisexual, spikes arranged loosely. Terminal spike sexuality staminate. Lateral spike sexuality androgynous, and erect to ascend. Lateral spike length about 1-2.5 cm. Terminal spike length about 0.8-1 cm. Number of spikes per node one (one spike in one bract).

Bract

Lowermost bract shape scale-like.

Glume

Staminate glume awn absent. Pistillate glume awn absent. Pistillate glume color whitish green to light brown.

Perigynium

Transverse section trigonous to terete. Perigynium shape obovate (the broadest part near the apex), and densely flowered. Perigynium glabrous. Beak short (beak less than one-third of the total length), with truncate mouth. Length 2.5 mm.

Achene

Appendage absent, no constrictions.