Data provided by the participants of the Consortium of California Herbaria

View additional distribution information on the Jepson eflora

Carex obnupta is a species of sedge known by the common name slough sedge. It is native to western North America from British Columbia to California where it grows crudsaline habitat such as wetlands. The plant produces upright, angled stems approaching 1.2 meters in maximum height, growing in beds or colonies from rhizome networks. The flower cluster is a cluster of flower spikes accompanied by a long leaflike leaf. The pistillate spikes and sometimes the staminate spikes dangle on peduncles. The fruit is coated by a hard, tough, shiny perigynium which is generally dark in color.

Plant type

Grass

Size

3 - 4 ft Tall

Form

Upright

Growth rate

Fast

Calscape icon
Color

Yellow

Flowering season

Spring

Special uses

Containers, Deer resistant, Water features or wet habitats

Sun

Deep Shade

Water

Moderate, High

Soil drainage

Fast, Medium, Slow

Soil description

Tolerant of a variety of garden soils as long as sufficient moisture is available.

Sunset Zones

4*, 5*, 6, 7, 8, 9, 14*, 15*, 16*, 17*, 24

Site type

Moist saline places

Plant communities

Closed-cone Pine Forest, Coastal Prairie, Coastal Strand, North Coastal Coniferous Forest, Wetland-Riparian

Caterpillars
Butterflies

Butterflies and moths supported

0 confirmed and 7 likely

Confirmed Likely

American Ear Moth

Amphipoea americana

Common Ringlet

Coenonympha tullia

Olive Green Cutworm Moth

Dargida procinctus

Elachista cucullata