Index / Search / Amorpha glabra
§1 Plant
Amorpha glabra Desf. ex Poir.
vernacular mountain false indigo — species · Fabaceae
§2Habit & range
Habit and range
- Growth habit
- Shrub
- Duration
- Perennial
- Group
- Dicot
- Family
- Fabaceae Lindl.
- Genus
- Amorpha
§2a
Native status, by region
- L48 Lower 48 States Native
§2b
County-level range
· 23 counties across 3 states/territories§3Cultivation specs · USDA
Recorded by the USDA Plant Materials Program.
§3a
Tolerances
- Drought
- Medium
- Shade
- Medium
- Moisture use
- Medium
- Fire
- High
- Salinity
- None
- Anaerobic
- None
- CaCO₃
- High
- Hedging
- None
§3b
Climate & soil
- Cold tolerance
- -3 °F minimum
- Frost-free days
- 150 min.
- Precipitation
- 32–60 in/yr
- pH range
- 4.7–7
- Root depth
- 20 in min.
- Fertility need
- Low
- Soil texture
- coarse, medium
§3c
Form & growth
- Growth form
- Multiple Stem
- Growth rate
- Moderate
- Lifespan
- Long
- Mature height
- 16 ft
- Height @ 20 y
- 16 ft
- Foliage texture
- Coarse
- Foliage colour
- Green
- Porosity (summer)
- Moderate
- Porosity (winter)
- Porous
- Flower colour
- Purple
- Fruit colour
- Brown
- Fire resistant
- No
- N fixation
- Medium
- Toxicity
- Slight
§3d
Reproduction
- Bloom period
- Mid Spring
- Seed abundance
- Medium
- Seed begins
- Summer
- Seed ends
- Fall
- Spread rate
- Slow
- Stratify
- Yes
- Seeds / lb
- 64,000
- Propagation
- seed, bare root, container
§3e
Use & availability
- Commercial availability
- Contracting Only
- Nursery stock
- No
- Browse palatability
- Medium
- Graze palatability
- Low
- Palatable, human
- No
- Protein potential
- Low
- Lumber
- No
- Christmas tree
- No
§4Counties, by state
Recorded in 23 counties across 3 states/territories.
Georgia view state ↗ 6 N ▾
Kentucky view state ↗ 1 N ▾
§5Sources & provenance
USDA PLANTS
Symbol, taxonomy, distribution, cultivation specs, native status. Public domain.
plants.usda.gov/AMGL2 ↗GBIF Backbone
Canonical taxonomic identity, synonym resolution, cross-refs. CC0.
gbif.org/species/7639404 ↗Record version
Cached and built locally. Source version on this record:
usda-plants-mt-2026-05-26
fetched 2026-05-26T05:45:41Z