Index / Search / Brassica napus
§1 Plant
Brassica napus L.
vernacular rape — species · Brassicaceae
§2Habit & range
Habit and range
- Growth habit
- Forb/herb
- Duration
- Annual, Biennial
- Group
- Dicot
- Family
- Brassicaceae Burnett
- Genus
- Brassica
§2a
Native status, by region
- AK Alaska Introduced
- CAN Canada Introduced
- GL Greenland Introduced
- L48 Lower 48 States Introduced
§2b
County-level range
· 70 counties across 8 states/territories§3Cultivation specs · USDA
Recorded by the USDA Plant Materials Program.
§3a
Tolerances
- Drought
- Low
- Shade
- High
- Moisture use
- Medium
- Fire
- None
- Salinity
- None
- Anaerobic
- None
- CaCO₃
- None
- Hedging
- None
§3b
Climate & soil
- Cold tolerance
- 17 °F minimum
- Frost-free days
- 130 min.
- Precipitation
- 40–80 in/yr
- pH range
- 6–7.2
- Root depth
- 6 in min.
- Fertility need
- Medium
- Soil texture
- medium, fine
§3c
Form & growth
- Growth form
- Single Crown
- Growth rate
- Rapid
- Mature height
- 4 ft
- Foliage texture
- Coarse
- Foliage colour
- Dark Green
- Porosity (summer)
- Dense
- Porosity (winter)
- Dense
- Flower colour
- Yellow
- Fruit colour
- Black
- Fire resistant
- No
- N fixation
- None
- Toxicity
- None
§3d
Reproduction
- Bloom period
- Early Spring
- Seed abundance
- High
- Seed begins
- Summer
- Seed ends
- Summer
- Spread rate
- Moderate
- Stratify
- No
- Seeds / lb
- 156,960
- Propagation
- seed
§3e
Use & availability
- Commercial availability
- Contracting Only
- Nursery stock
- No
- Browse palatability
- Medium
- Graze palatability
- Medium
- Palatable, human
- Yes
- Protein potential
- Medium
- Lumber
- No
- Christmas tree
- No
§4Counties, by state
Recorded in 70 counties across 8 states/territories.
Alabama view state ↗ 7 I ▾
Arkansas view state ↗ 2 I ▾
Georgia view state ↗ 5 I ▾
Kentucky view state ↗ 26 I ▾
- Allen 21003
- Anderson 21005
- Barren 21009
- Bell 21013
- Carlisle 21039
- Carter 21043
- Edmonson 21061
- Fayette 21067
- Hardin 21093
- Henry 21103
- Jefferson 21111
- Kenton 21117
- Larue 21123
- Lincoln 21137
- Madison 21151
- McCreary 21147
- McLean 21149
- Menifee 21165
- Oldham 21185
- Powell 21197
- Pulaski 21199
- Rowan 21205
- Scott 21209
- Trimble 21223
- Warren 21227
- Wolfe 21237
Massachusetts view state ↗ 2 I ▾
New York view state ↗ 14 I ▾
Vermont view state ↗ 2 I ▾
§5Sources & provenance
USDA PLANTS
Symbol, taxonomy, distribution, cultivation specs, native status. Public domain.
plants.usda.gov/BRNA ↗GBIF Backbone
Canonical taxonomic identity, synonym resolution, cross-refs. CC0.
gbif.org/species/3042636 ↗Record version
Cached and built locally. Source version on this record:
usda-plants-mt-2026-05-26
fetched 2026-05-26T05:06:36Z