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Carex bromoides

Phonetic Spelling
KAY-reks bro-MOY-deez
Description

Common brome sedge is an herbaceous perennial in the sedge family (Cyperaceae). It is native to a large portion of eastern North America from New Brunswick west to Minnesota and south to Florida and Texas. The species epithet means "like Bromus [a genus of grass]."

This sedge requires moist to wet soils, some organic matter, and does best in partial shade. It will tolerate shallow, standing water for a short amount of time. It can tolerate more sun exposure if soils stay moist, but it does not do well in clay soils. In natural settings, it occurs in various wetlands, including bogs, swamp forests, and seepages, often in basic soils. Within NC, it is most frequent in the Mountains. This is an ideal plant for rain gardens and pond edges. It provides benefits like other wetland plants, including bank stabilization and water filtration. Like other native sedges, it is ecologically important and utilized by a variety of animals. 

Common brome sedge forms dense tufts of culms with narrow basal leaves. It can spread by underground rhizomes. It does not spread by runners, but forms single clumps which expand slowly in size. Mature clumps take on a gently arching habit, and can grow to 1 foot in height with a 20 inch spread. The inflorescence is rather narrow and located at the summit of each culm. It consists of 3-8 spikelets, each consisting of 6-18 female florets. Male florets, when present, are below the female florets on the spikelet. Two subspecies are recognized: ssp. bromoides is widespread, while ssp. montana is restricted to the southern Blue Ridge Mountains. The latter differs in having wider culms, wider leaf blades, and a more dense habit, among other subtle differences. 

Diseases, Insect Pests, and Other Plant Problems:

No known diseases or insect pests.

More information on Carex.

See this plant in the following landscape:
Cultivars / Varieties:
Tags:
#sedge#skipper butterflies#spring interest#clumping#perennial#wetland#wet soil#ground cover
 
Cultivars / Varieties:
Tags:
#sedge#skipper butterflies#spring interest#clumping#perennial#wetland#wet soil#ground cover
  • Attributes:
    Genus:
    Carex
    Species:
    bromoides
    Family:
    Cyperaceae
    Life Cycle:
    Perennial
    Recommended Propagation Strategy:
    Division
    Seed
    Country Or Region Of Origin:
    eastern U.S. and southeastern Canada
    Distribution:
    Widespread in eastern North America from Canada to Mexico.
    Wildlife Value:
    Carex sedges are extremely valuable to animals in many NC ecosystems. They provide cover for many small animals. The foliage is eaten by mammals as well as Lepidoptera, particularly skippers [Hesperiidae] and satyrs [Nymphalidae: Satyrinae]. Birds and small mammals eat the seeds and use the foliage in nest-building.
    Dimensions:
    Height: 0 ft. 9 in. - 3 ft. 0 in.
    Width: 1 ft. 4 in. - 1 ft. 9 in.
  • Whole Plant Traits:
    Plant Type:
    Ground Cover
    Herbaceous Perennial
    Native Plant
    Ornamental Grasses and Sedges
    Habit/Form:
    Clumping
    Mounding
    Spreading
    Growth Rate:
    Rapid
    Maintenance:
    Low
  • Cultural Conditions:
    Light:
    Dappled Sunlight (Shade through upper canopy all day)
    Partial Shade (Direct sunlight only part of the day, 2-6 hours)
    Soil Texture:
    High Organic Matter
    Loam (Silt)
    Soil pH:
    Alkaline (>8.0)
    Neutral (6.0-8.0)
    Soil Drainage:
    Moist
    Occasionally Wet
    NC Region:
    Coastal
    Mountains
    Piedmont
    USDA Plant Hardiness Zone:
    4a, 4b, 5a, 5b, 6a, 6b, 7a, 7b, 8a, 8b, 9a, 9b
  • Fruit:
    Fruit Color:
    Brown/Copper
    Green
    Fruit Type:
    Achene
    Fruit Length:
    < 1 inch
    Fruit Width:
    < 1 inch
  • Flowers:
    Flower Color:
    Brown/Copper
    Green
    Flower Inflorescence:
    Raceme
    Spike
    Flower Bloom Time:
    Spring
    Summer
    Flower Petals:
    Bracts
    Flower Size:
    < 1 inch
    Flower Description:
    Pistillate flower contained in a perigynium, a pouch-like bract typical of Carex. Green and light brown blooms from May into July. Three to eight spikelets contain both male and female flowers. The inflorecences mature from light green to tan over the course of the growing season.
  • Leaves:
    Leaf Color:
    Green
    Leaf Feel:
    Smooth
    Leaf Value To Gardener:
    Long-lasting
    Leaf Type:
    Sheath
    Leaf Arrangement:
    Alternate
    Leaf Shape:
    Linear
    Hairs Present:
    No
    Leaf Length:
    > 6 inches
    Leaf Width:
    < 1 inch
    Leaf Description:
    The ascending to spreading leaf blades are 1/10th of an inch across and 3 to 9 inches long. They are glabrous on the surfaces but rough at the margin.
  • Stem:
    Stem Color:
    Green
    Stem Is Aromatic:
    No
  • Landscape:
    Landscape Location:
    Lawn
    Naturalized Area
    Pond
    Woodland
    Landscape Theme:
    Rain Garden
    Attracts:
    Butterflies
    Small Mammals
    Songbirds