Index / Search / Callitriche heterophylla
§1 Plant
Callitriche heterophylla Pursh
vernacular twoheaded water-starwort — species · Callitrichaceae
§2Habit & range
Habit and range
- Growth habit
- Forb/herb
- Duration
- Annual, Perennial
- Group
- Dicot
- Family
- Callitrichaceae Link.
- Genus
- Callitriche
§2a
Native status, by region
- AK Alaska Native
- CAN Canada Native
- GL Greenland Native
- L48 Lower 48 States Native
§2b
County-level range
· 7 counties across 2 states/territories§3Cultivation specs · USDA
Recorded by the USDA Plant Materials Program.
§3a
Tolerances
- Drought
- None
- Shade
- High
- Moisture use
- High
- Fire
- High
- Salinity
- None
- Anaerobic
- High
- CaCO₃
- Medium
- Hedging
- None
§3b
Climate & soil
- Cold tolerance
- -33 °F minimum
- Frost-free days
- 80 min.
- pH range
- 5.2–6.8
- Fertility need
- Medium
- Soil texture
- medium, fine
§3c
Form & growth
- Growth form
- Single Crown
- Growth rate
- Rapid
- Lifespan
- Short
- Foliage texture
- Fine
- Foliage colour
- Green
- Porosity (summer)
- Porous
- Porosity (winter)
- Porous
- Flower colour
- Green
- Fruit colour
- Green
- Fire resistant
- Yes
- N fixation
- None
- Toxicity
- None
§3d
Reproduction
- Bloom period
- Spring
- Seed abundance
- Low
- Seed begins
- Summer
- Seed ends
- Fall
- Spread rate
- Moderate
- Stratify
- No
- Seeds / lb
- 850,000
- Propagation
- seed, sprigs
§3e
Use & availability
- Commercial availability
- No Known Source
- Nursery stock
- No
- Palatable, human
- No
- Lumber
- No
- Christmas tree
- No
§4Counties, by state
Recorded in 7 counties across 2 states/territories.
Montana view state ↗ 4 N ▾
Rhode Island view state ↗ 3 N ▾
§5Sources & provenance
USDA PLANTS
Symbol, taxonomy, distribution, cultivation specs, native status. Public domain.
plants.usda.gov/CAHE3 ↗GBIF Backbone
Canonical taxonomic identity, synonym resolution, cross-refs. CC0.
gbif.org/species/5372482 ↗Record version
Cached and built locally. Source version on this record:
usda-plants-mt-2026-05-25
fetched 2026-05-25T18:27:19Z