Index / Search / Carex decomposita

§1 Plant

Carex decomposita Muhl.

vernacular cypressknee sedge — species · Cyperaceae


USDA
CADE6
GBIF
2726186
Rank
species
cypressknee sedge (Carex decomposita)
Platephotograph · Theo WitsellCC BY-NC source · iNaturalist ↗

§2Habit & range

Habit and range

Growth habit
Graminoid
Duration
Perennial
Group
Monocot
Family
Cyperaceae Juss.
Genus
Carex
§2a

Native status, by region

  • L48 Lower 48 States Native
§2b

County-level range

· 85 counties across 18 states/territories
Legend Native · 85 Introduced · 0 Both · 0 Hover a county for detail.

§3Cultivation specs · USDA

Recorded by the USDA Plant Materials Program.

§3a

Tolerances

Drought
None
Shade
Low
Moisture use
High
Fire
High
Salinity
None
Anaerobic
High
CaCO₃
None
Hedging
None
§3b

Climate & soil

Cold tolerance
-13 °F minimum
Frost-free days
140 min.
Precipitation
36–55 in/yr
pH range
4.5–6.6
Root depth
12 in min.
Fertility need
Medium
Soil texture
coarse, medium
§3c

Form & growth

Growth form
Bunch
Growth rate
Rapid
Lifespan
Long
Mature height
4.5 ft
Foliage texture
Coarse
Foliage colour
Green
Porosity (summer)
Dense
Porosity (winter)
Porous
Flower colour
Green
Fruit colour
Brown
Fire resistant
No
N fixation
None
Toxicity
None
§3d

Reproduction

Bloom period
Late Spring
Seed abundance
Low
Seed begins
Summer
Seed ends
Summer
Spread rate
Slow
Stratify
No
Propagation
seed, bare root, sprigs
§3e

Use & availability

Commercial availability
No Known Source
Nursery stock
No
Browse palatability
Low
Graze palatability
Low
Palatable, human
No
Protein potential
Low
Lumber
No
Christmas tree
No

§4Counties, by state

Recorded in 85 counties across 18 states/territories.

Alabama view state ↗ 2 N
Arkansas view state ↗ 3 N
Delaware view state ↗ 1 N
District of Columbia view state ↗ 1 N
Florida view state ↗ 7 N
Georgia view state ↗ 6 N
Illinois view state ↗ 4 N
Indiana view state ↗ 6 N
Kentucky view state ↗ 11 N
Louisiana view state ↗ 4 N
Maryland view state ↗ 1 N
Michigan view state ↗ 3 N
Mississippi view state ↗ 9 N
New York view state ↗ 5 N
North Carolina view state ↗ 3 N
South Carolina view state ↗ 1 N
Tennessee view state ↗ 8 N
Virginia view state ↗ 10 N

§5Sources & provenance

USDA PLANTS

Symbol, taxonomy, distribution, cultivation specs, native status. Public domain.

plants.usda.gov/CADE6 ↗

GBIF Backbone

Canonical taxonomic identity, synonym resolution, cross-refs. CC0.

gbif.org/species/2726186 ↗

Record version

Cached and built locally. Source version on this record:

usda-plants-mt-2026-05-26

fetched 2026-05-26T07:25:30Z