Index / Search / Larix occidentalis
§1 Plant
Larix occidentalis Nutt.
vernacular western larch — species · Pinaceae
§2Habit & range
Habit and range
- Growth habit
- Tree
- Duration
- Perennial
- Group
- Gymnosperm
- Family
- Pinaceae Spreng. ex Rudolphi
- Genus
- Larix
§2a
Native status, by region
- CAN Canada Native
- L48 Lower 48 States Native
§2b
County-level range
· 49 counties across 6 states/territories§3Cultivation specs · USDA
Recorded by the USDA Plant Materials Program.
§3a
Tolerances
- Drought
- Low
- Shade
- High
- Moisture use
- Low
- Fire
- Low
- Salinity
- None
- Anaerobic
- None
- CaCO₃
- Low
- Hedging
- None
§3b
Climate & soil
- Cold tolerance
- -43 °F minimum
- Frost-free days
- 60 min.
- Precipitation
- 13–50 in/yr
- pH range
- 6–7
- Root depth
- 20 in min.
- Fertility need
- Low
- Soil texture
- coarse, medium
§3c
Form & growth
- Growth form
- Single Stem
- Growth rate
- Rapid
- Lifespan
- Long
- Mature height
- 200 ft
- Height @ 20 y
- 40 ft
- Foliage texture
- Fine
- Foliage colour
- Yellow-Green
- Porosity (summer)
- Moderate
- Porosity (winter)
- Porous
- Flower colour
- Red
- Fruit colour
- Brown
- Fire resistant
- Yes
- N fixation
- None
- Toxicity
- None
§3d
Reproduction
- Bloom period
- Spring
- Seed abundance
- High
- Seed begins
- Summer
- Seed ends
- Fall
- Spread rate
- Moderate
- Stratify
- Yes
- Seeds / lb
- 143,040
- Propagation
- seed, cuttings, bare root, container
§3e
Use & availability
- Commercial availability
- Field Collections Only
- Nursery stock
- Yes
- Browse palatability
- Low
- Graze palatability
- Low
- Palatable, human
- No
- Lumber
- Yes
- Fuelwood
- Medium
- Christmas tree
- No
§4Counties, by state
Recorded in 49 counties across 6 states/territories.
Idaho view state ↗ 12 N ▾
Montana view state ↗ 6 N ▾
Oregon view state ↗ 15 N ▾
Utah view state ↗ 1 N ▾
Washington view state ↗ 14 N ▾
Wyoming view state ↗ 1 N ▾
§5Sources & provenance
USDA PLANTS
Symbol, taxonomy, distribution, cultivation specs, native status. Public domain.
plants.usda.gov/LAOC ↗GBIF Backbone
Canonical taxonomic identity, synonym resolution, cross-refs. CC0.
gbif.org/species/2686270 ↗Record version
Cached and built locally. Source version on this record:
usda-plants-mt-2026-05-26
fetched 2026-05-26T20:46:58Z