Index / Search / Sidalcea oregana
§1 Plant
Sidalcea oregana (Nutt. ex Torr. & A. Gray) A. Gray
vernacular Oregon checkerbloom — species · Malvaceae
§2Habit & range
Habit and range
- Growth habit
- Forb/herb, Subshrub
- Duration
- Perennial
- Group
- Dicot
- Family
- Malvaceae Juss.
- Genus
- Sidalcea
§2a
Native status, by region
- CAN Canada Native
- L48 Lower 48 States Native
§2b
County-level range
· 84 counties across 7 states/territories§3Cultivation specs · USDA
Recorded by the USDA Plant Materials Program.
§3a
Tolerances
- Drought
- None
- Shade
- Low
- Moisture use
- High
- Fire
- Medium
- Salinity
- None
- Anaerobic
- High
- CaCO₃
- Medium
- Hedging
- None
§3b
Climate & soil
- Cold tolerance
- -38 °F minimum
- Frost-free days
- 120 min.
- Precipitation
- 10–28 in/yr
- pH range
- 6.4–8
- Root depth
- 12 in min.
- Fertility need
- Medium
- Soil texture
- coarse, medium
§3c
Form & growth
- Growth form
- Single Crown
- Growth rate
- Moderate
- Lifespan
- Moderate
- Mature height
- 4.5 ft
- Foliage texture
- Coarse
- Foliage colour
- Green
- Porosity (summer)
- Moderate
- Porosity (winter)
- Porous
- Flower colour
- Purple
- Fruit colour
- Brown
- Fire resistant
- No
- N fixation
- None
- Toxicity
- None
§3d
Reproduction
- Bloom period
- Late Spring
- Seed abundance
- High
- Seed begins
- Summer
- Seed ends
- Summer
- Spread rate
- Moderate
- Stratify
- No
- Seeds / lb
- 158,325
- Propagation
- seed
§3e
Use & availability
- Commercial availability
- Routinely Available
- Nursery stock
- No
- Palatable, human
- No
- Lumber
- No
- Christmas tree
- No
§4Counties, by state
Recorded in 84 counties across 7 states/territories.
Idaho view state ↗ 31 N ▾
- Ada 16001
- Adams 16003
- Bannock 16005
- Bear Lake 16007
- Benewah 16009
- Blaine 16013
- Boise 16015
- Butte 16023
- Camas 16025
- Canyon 16027
- Cassia 16031
- Clearwater 16035
- Custer 16037
- Elmore 16039
- Franklin 16041
- Gem 16045
- Gooding 16047
- Idaho 16049
- Kootenai 16055
- Latah 16057
- Lemhi 16059
- Lewis 16061
- Lincoln 16063
- Nez Perce 16069
- Owyhee 16073
- Payette 16075
- Shoshone 16079
- Teton 16081
- Twin Falls 16083
- Valley 16085
- Washington 16087
Montana view state ↗ 2 N ▾
Nevada view state ↗ 10 N ▾
New York view state ↗ 1 N ▾
Oregon view state ↗ 25 N ▾
- Baker 41001
- Columbia 41009
- Crook 41013
- Curry 41015
- Deschutes 41017
- Douglas 41019
- Grant 41023
- Harney 41025
- Hood River 41027
- Jackson 41029
- Jefferson 41031
- Josephine 41033
- Klamath 41035
- Lake 41037
- Lane 41039
- Linn 41043
- Malheur 41045
- Marion 41047
- Sherman 41055
- Umatilla 41059
- Union 41061
- Wallowa 41063
- Wasco 41065
- Washington 41067
- Wheeler 41069
Utah view state ↗ 12 N ▾
Wyoming view state ↗ 3 N ▾
§5Sources & provenance
USDA PLANTS
Symbol, taxonomy, distribution, cultivation specs, native status. Public domain.
plants.usda.gov/SIOR ↗GBIF Backbone
Canonical taxonomic identity, synonym resolution, cross-refs. CC0.
gbif.org/species/8428499 ↗Record version
Cached and built locally. Source version on this record:
usda-plants-mt-2026-05-26
fetched 2026-05-26T14:17:10Z