Index / Search / Amaranthus tuberculatus
§1 Plant
Amaranthus tuberculatus (Moq.) Sauer
vernacular roughfruit amaranth — species · Amaranthaceae
§2Habit & range
Habit and range
- Growth habit
- Forb/herb
- Duration
- Annual
- Group
- Dicot
- Family
- Amaranthaceae Martinov
- Genus
- Amaranthus
§2a
Native status, by region
- CAN Canada Native
- L48 Lower 48 States Native
§2b
County-level range
· 102 counties across 11 states/territories§3Cultivation specs · USDA
Recorded by the USDA Plant Materials Program.
§3a
Tolerances
- Drought
- None
- Shade
- High
- Moisture use
- High
- Fire
- None
- Salinity
- None
- Anaerobic
- High
- CaCO₃
- Medium
- Hedging
- None
§3b
Climate & soil
- Cold tolerance
- -33 °F minimum
- Frost-free days
- 120 min.
- Precipitation
- 15–60 in/yr
- pH range
- 5–8
- Root depth
- 12 in min.
- Fertility need
- Low
- Soil texture
- medium, fine
§3c
Form & growth
- Growth form
- Single Stem
- Growth rate
- Rapid
- Mature height
- 6.6 ft
- Foliage texture
- Medium
- Foliage colour
- Green
- Porosity (summer)
- Moderate
- Porosity (winter)
- Porous
- Flower colour
- Green
- Fruit colour
- Black
- Fire resistant
- No
- N fixation
- None
- Toxicity
- None
§3d
Reproduction
- Bloom period
- Summer
- Seed abundance
- High
- Seed begins
- Summer
- Seed ends
- Fall
- Spread rate
- Moderate
- Stratify
- No
- Seeds / lb
- 900,000
- Propagation
- seed, bare root
§3e
Use & availability
- Commercial availability
- No Known Source
- Nursery stock
- No
- Browse palatability
- Low
- Graze palatability
- Low
- Palatable, human
- No
- Lumber
- No
- Christmas tree
- No
§4Counties, by state
Recorded in 102 counties across 11 states/territories.
Arkansas view state ↗ 34 N ▾
- Arkansas 05001
- Ashley 05003
- Baxter 05005
- Benton 05007
- Chicot 05017
- Conway 05029
- Craighead 05031
- Crawford 05033
- Crittenden 05035
- Desha 05041
- Franklin 05047
- Howard 05061
- Independence 05063
- Izard 05065
- Jackson 05067
- Jefferson 05069
- Johnson 05071
- Lee 05077
- Marion 05089
- Miller 05091
- Mississippi 05093
- Monroe 05095
- Newton 05101
- Perry 05105
- Phillips 05107
- Pope 05115
- Prairie 05117
- Pulaski 05119
- Randolph 05121
- Sebastian 05131
- Sevier 05133
- St. Francis 05123
- Union 05139
- Washington 05143
Georgia view state ↗ 1 N ▾
Kentucky view state ↗ 19 N ▾
Maine view state ↗ 2 N ▾
Massachusetts view state ↗ 7 N ▾
New Hampshire view state ↗ 1 N ▾
New Jersey view state ↗ 3 N ▾
New York view state ↗ 13 N ▾
Pennsylvania view state ↗ 8 N ▾
Vermont view state ↗ 6 N ▾
West Virginia view state ↗ 8 N ▾
§5Sources & provenance
USDA PLANTS
Symbol, taxonomy, distribution, cultivation specs, native status. Public domain.
plants.usda.gov/AMTU ↗GBIF Backbone
Canonical taxonomic identity, synonym resolution, cross-refs. CC0.
gbif.org/species/8577467 ↗Record version
Cached and built locally. Source version on this record:
usda-plants-mt-2026-05-26
fetched 2026-05-26T05:06:36Z