Panicum dichotomiflorum Michx.

vernacular fall panicgrass — species · Poaceae

USDA: PADI
GBIF: 2705144
Rank: species

fall panicgrass (Panicum dichotomiflorum) — Platephotograph · Rob CurtisCC BY-NC-SA source · iNaturalist ↗

§2Habit & range

Growth habit: Graminoid
Duration: Annual
Group: Monocot
Family: Poaceae Barnhart
Genus: Panicum

§2a

Native status, by region

CAN Canada Introduced
HI Hawaii Introduced
L48 Lower 48 States Native
PR Puerto Rico Native

§2b

County-level range

· 4 counties across 1 state

Legend Native · 4 Introduced · 0 Both · 0 Hover a county for detail.

§3Cultivation specs · USDA

Recorded by the USDA Plant Materials Program.

§3a

Tolerances

Drought: None
Shade: High
Moisture use: High
Fire: None
Salinity: Medium
Anaerobic: High
CaCO₃: High
Hedging: None

§3b

Climate & soil

Cold tolerance: -43 °F minimum
Frost-free days: 100 min.
Precipitation: 20–65 in/yr
pH range: 4.8–7
Root depth: 6 in min.
Fertility need: Low
Soil texture: coarse, medium, fine

§3c

Form & growth

Growth form: Bunch
Growth rate: Rapid
Mature height: 3.3 ft
Foliage texture: Fine
Foliage colour: Green
Porosity (summer): Porous
Porosity (winter): Porous
Flower colour: Green
Fruit colour: Yellow
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: 392,000
Propagation: seed

§3e

Use & availability

Commercial availability: Routinely Available
Nursery stock: No
Browse palatability: High
Graze palatability: High
Palatable, human: No
Lumber: No
Christmas tree: No

§4Counties, by state

Recorded in 4 counties across 1 state.

Rhode Island view state ↗ 4 N ▾

§5Sources & provenance

USDA PLANTS

Symbol, taxonomy, distribution, cultivation specs, native status. Public domain.

plants.usda.gov/PADI ↗

GBIF Backbone

Canonical taxonomic identity, synonym resolution, cross-refs. CC0.

gbif.org/species/2705144 ↗

Record version

Cached and built locally. Source version on this record:

usda-plants-mt-2026-05-25

fetched 2026-05-25T18:27:19Z