Lipocarpha occidentalis

Lipocarpha occidentalis, the Western halfchaff sedge, or Pacific halfchaff sedge, is a plant species native to western part of the United States but cultivated as an ornamental in other regions. It is widespread in California, with populations also reported from Oregon and Washington state.
Lipocarpha occidentalis is an annual herb up to 50 cm tall, forming clumps but not rhizomes. Culms are round in cross-section. Leaves are bristly, up to 3 cm long. Inflorescence an egg-shaped cluster of spikes; each spike with 2 scales, each scale subtending a hermaphroditic flower. Achenes are egg-shaped, up to 1 mm long.