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Index / Search / Carex rossii

§1 Plant

Carex rossii Boott

vernacular Ross' sedge — species · Cyperaceae

USDA
CARO5
GBIF
2727055
Rank
species
Ross' sedge (Carex rossii)
Platephotograph · Andrew SimonCC 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
§2b

County-level range

· 204 counties across 17 states/territories
Legend Native · 204 Introduced · 0 Both · 0 Hover a county for detail.

§3Cultivation specs · USDA

Recorded by the USDA Plant Materials Program.

§3a

Tolerances

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

Climate & soil

Cold tolerance
-33 °F minimum
Frost-free days
140 min.
Precipitation
14–60 in/yr
pH range
5.8–7.7
Root depth
8 in min.
Fertility need
Medium
Soil texture
coarse, medium
§3c

Form & growth

Growth form
Rhizomatous
Growth rate
Moderate
Lifespan
Moderate
Mature height
1 ft
Foliage texture
Coarse
Foliage colour
Green
Porosity (summer)
Porous
Porosity (winter)
Porous
Flower colour
Green
Fruit colour
Brown
Fire resistant
No
N fixation
None
Toxicity
None
§3d

Reproduction

Bloom period
Mid 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
No Known Source
Nursery stock
No
Browse palatability
Low
Graze palatability
Low
Palatable, human
No
Lumber
No
Christmas tree
No

§4Counties, by state

Recorded in 204 counties across 17 states/territories.

Alaska view state ↗ 6 N ▾
Arizona view state ↗ 4 N ▾
California view state ↗ 25 N ▾
Colorado view state ↗ 23 N ▾
Idaho view state ↗ 20 N ▾
Michigan view state ↗ 1 N ▾
Minnesota view state ↗ 1 N ▾
Montana view state ↗ 13 N ▾
Nebraska view state ↗ 2 N ▾
Nevada view state ↗ 10 N ▾
New Mexico view state ↗ 4 N ▾
North Dakota view state ↗ 1 N ▾
Oregon view state ↗ 29 N ▾
South Dakota view state ↗ 1 N ▾
Utah view state ↗ 26 N ▾
Washington view state ↗ 22 N ▾
Wyoming view state ↗ 16 N ▾

§5Sources & provenance

USDA PLANTS

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

plants.usda.gov/CARO5 ↗

GBIF Backbone

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

gbif.org/species/2727055 ↗

Record version

Cached and built locally. Source version on this record:

usda-plants-mt-2026-05-26

fetched 2026-05-26T20:46:58Z