Carex plantaginifolia is an older botanical variant name or synonym for Carex plantaginea, commonly known as Plantain-leaf Sedge or Seersucker Sedge.

Native to the moist, rich woodland floors of eastern North America, this highly ornamental, clump-forming perennial is famous for its unusually broad (up to 1 inch wide), lime-to-bright green leaves that feature a distinct puckered, "seersucker" texture.

This sedge grows in low, shaggy mounds reaching 6–12 inches tall with a slow-spreading clumping habit. In early spring (often March), it shoots up unique, dark spear-like flower stems with burgundy or purple-red sheaths.

It thrives best in partial to full shade and prefers rich, organic, moist, well-drained soils. However, once fully established, it is remarkably adaptive to difficult dry shade conditions.

It is mostly evergreen in southern zones, though its leaf tips may brown slightly in harsh northern winters.

An exceptional native alternative to non-native Hostas or turf grasses for deep shade. It makes an excellent borders or edgers choice along woodland paths and aids in soil erosion control.

Host plant for the Satyrine butterflies, including the Appalachian Brown butterfly, Skippers and Woodland Moth species.