Index / Search / Heuchera cylindrica
§1 Plant
Heuchera cylindrica Douglas ex Hook.
vernacular roundleaf alumroot — species · Saxifragaceae
§2Habit & range
Habit and range
- Growth habit
- Forb/herb
- Duration
- Perennial
- Group
- Dicot
- Family
- Saxifragaceae Juss.
- Genus
- Heuchera
§2a
Native status, by region
- CAN Canada Native
- L48 Lower 48 States Native
§2b
County-level range
· 91 counties across 7 states/territories§3Cultivation specs · USDA
Recorded by the USDA Plant Materials Program.
§3a
Tolerances
- Drought
- High
- Shade
- Medium
- Moisture use
- Low
- Fire
- High
- Salinity
- None
- Anaerobic
- None
- CaCO₃
- Low
- Hedging
- High
§3b
Climate & soil
- Cold tolerance
- -13 °F minimum
- Frost-free days
- 120 min.
- Precipitation
- 10–35 in/yr
- pH range
- 7–8
- Root depth
- 6 in min.
- Fertility need
- Low
- Soil texture
- coarse
§3c
Form & growth
- Growth form
- Single Crown
- Growth rate
- Rapid
- Lifespan
- Short
- Mature height
- 6 ft
- Foliage texture
- Medium
- Foliage colour
- Green
- Porosity (summer)
- Porous
- Porosity (winter)
- Porous
- Flower colour
- White
- Fruit colour
- Brown
- Fire resistant
- No
- N fixation
- None
- Toxicity
- None
§3d
Reproduction
- Bloom period
- Mid Spring
- Seed abundance
- Low
- Seed begins
- Summer
- Seed ends
- Fall
- Spread rate
- Moderate
- Stratify
- Yes
- Seeds / lb
- 7,616,938
- Propagation
- seed, container
§3e
Use & availability
- Commercial availability
- Contracting Only
- Nursery stock
- No
- Browse palatability
- Low
- Graze palatability
- Low
- Palatable, human
- No
- Protein potential
- Medium
- Lumber
- No
- Christmas tree
- No
§4Counties, by state
Recorded in 91 counties across 7 states/territories.
California view state ↗ 3 N ▾
Idaho view state ↗ 26 N ▾
- Ada 16001
- Adams 16003
- Benewah 16009
- Blaine 16013
- Boise 16015
- Bonner 16017
- Boundary 16021
- Butte 16023
- Cassia 16031
- Clark 16033
- Clearwater 16035
- Custer 16037
- Elmore 16039
- Fremont 16043
- Idaho 16049
- Kootenai 16055
- Latah 16057
- Lemhi 16059
- Lewis 16061
- Lincoln 16063
- Madison 16065
- Nez Perce 16069
- Owyhee 16073
- Shoshone 16079
- Valley 16085
- Washington 16087
Montana view state ↗ 16 N ▾
Nevada view state ↗ 2 N ▾
Oregon view state ↗ 21 N ▾
Washington view state ↗ 20 N ▾
Wyoming view state ↗ 3 N ▾
§5Sources & provenance
USDA PLANTS
Symbol, taxonomy, distribution, cultivation specs, native status. Public domain.
plants.usda.gov/HECY2 ↗GBIF Backbone
Canonical taxonomic identity, synonym resolution, cross-refs. CC0.
gbif.org/species/3032670 ↗Record version
Cached and built locally. Source version on this record:
usda-plants-mt-2026-05-26
fetched 2026-05-26T20:46:58Z