Index / Search / Decodon verticillatus

§1 Plant

Decodon verticillatus (L.) Elliott

vernacular swamp loosestrife — species · Lythraceae


USDA
DEVE
GBIF
5420916
Rank
species
swamp loosestrife (Decodon verticillatus)
Platephotograph · bobd238CC BY-NC source · iNaturalist ↗

§2Habit & range

Habit and range

Growth habit
Shrub, Subshrub
Duration
Perennial
Group
Dicot
Family
Lythraceae J. St.-Hil.
Genus
Decodon
§2a

Native status, by region

  • CAN Canada Native
  • L48 Lower 48 States Native
§2b

County-level range

· 3 counties across 1 state
Legend Native · 3 Introduced · 0 Both · 0 Hover a county for detail.

§3Cultivation specs · USDA

Recorded by the USDA Plant Materials Program.

§3a

Tolerances

Drought
None
Shade
Medium
Moisture use
High
Fire
High
Salinity
None
Anaerobic
High
CaCO₃
Medium
Hedging
None
§3b

Climate & soil

Cold tolerance
-23 °F minimum
Frost-free days
145 min.
Precipitation
30–60 in/yr
pH range
4.9–8.6
Root depth
10 in min.
Fertility need
Medium
Soil texture
coarse, medium, fine
§3c

Form & growth

Growth form
Colonizing
Growth rate
Rapid
Lifespan
Long
Mature height
8 ft
Foliage texture
Coarse
Foliage colour
Green
Porosity (summer)
Dense
Porosity (winter)
Moderate
Flower colour
Red
Fruit colour
Brown
Fire resistant
No
N fixation
None
Toxicity
None
§3d

Reproduction

Bloom period
Mid Summer
Seed abundance
High
Seed begins
Summer
Seed ends
Fall
Spread rate
Slow
Stratify
No
Propagation
seed, cuttings, bare root, container
§3e

Use & availability

Commercial availability
Routinely Available
Nursery stock
No
Palatable, human
No
Lumber
No
Christmas tree
No

§4Counties, by state

Recorded in 3 counties across 1 state.


§5Sources & provenance

USDA PLANTS

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

plants.usda.gov/DEVE ↗

GBIF Backbone

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

gbif.org/species/5420916 ↗

Record version

Cached and built locally. Source version on this record:

usda-plants-mt-2026-05-25

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