Scientific Name

Carex tsushimensis (Ohwi) Ohwi 바늘청사초

Subgenus classification

: Carex.

Habitats

Occurs in Jeonnam, and it lives in coastline.

Stem

Clumped growth, with basal sheath color dark brown to reddish brown, and length about 20-60 cm.

Leaves

Leaves longer than the stem, similar to the stem or shorter than the stem, have glabrous surfaces, width about 3-8 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 pistillate, and erect to ascend. Lateral spike length about 2-5 cm. Terminal spike length about 2-5 cm. Number of spikes per node one (one spike in one bract).

Bract

Lowermost bract shape leaf-like.

Glume

Staminate glume awn short (awn less than one-third of the total length). Pistillate glume awn long (awn more than one-third of the total length). Pistillate glume color whitish green to light brown.

Perigynium

Transverse section trigonous to terete. Perigynium shape obovate (the broadest part near the apex) or elliptical to narrow elliptical (the broadest part in the center), and densely flowered. Perigynium hairy or pubescent. Beak short (beak less than one-third of the total length), with bidentate to bifid mouth. Length 3-3.3 mm.

Achene

Appendage present, with constrictions (?) or no constrictions (?).