Index / Search / Carex filifolia

§1 Plant — species · Cyperaceae

Carex filifolia Nutt.

vernacular threadleaf sedge


USDA
CAFI
GBIF
2728129
Rank
species
threadleaf sedge (Carex filifolia)
Platephotograph · Jason HeadleyCC 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

  • AK Alaska Native
  • CAN Canada Native
  • L48 Lower 48 States Native

§3Cultivation specs · USDA

Recorded by the USDA Plant Materials Program.

§3a

Tolerances

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

Climate & soil

Cold tolerance
-38 °F minimum
Frost-free days
90 min.
Precipitation
8–24 in/yr
pH range
5.2–7.5
Root depth
12 in min.
Fertility need
Low
Soil texture
coarse, medium
§3c

Form & growth

Growth form
Bunch
Growth rate
Slow
Lifespan
Long
Mature height
1.2 ft
Foliage texture
Coarse
Foliage colour
Green
Porosity (summer)
Moderate
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
Spring
Seed ends
Summer
Spread rate
Slow
Stratify
No
Propagation
seed, bare root, sprigs
§3e

Use & availability

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

§4Montana distribution

Recorded in 42 of 56 Montana counties.


§5Sources & provenance

USDA PLANTS

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

plants.usda.gov/CAFI ↗

GBIF Backbone

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

gbif.org/species/2728129 ↗

Record version

Cached and built locally. Source version on this record:

usda-plants-mt-2026-05-25

fetched 2026-05-25T16:28:53Z