Family - Cyperaceae

Stems - No info yet.

Cross-section of the stem.

Leaves - No info yet.

Sheath of the stem.

Inflorescence - No info yet.

Flowers - No info yet.

Flowers.

Flowering - June - October.

Habitat - Pond margins, lakes, streams, in shallow water.

Origin - Native to U.S.

Other info. - This species can be found mainly in the southern half of Missouri. The plant is easy to identify becasue of its sharply 4-angled stems and terminal spike. The plant grows along the waters edge and is rarely found deeply submerged.

Photographs taken at the S-F Boy Scout Ranch, Iron County, MO., 7-10-04.