Bidens trichosperma
Bidens trichosperma
- Native to:
- Canada | ON, QC
Wikimedia: Robert H. Mohlenbrock. USDA NRCS. 1995. Northeast wetland flora: Field office guide to plant species. Northeast National Technical Center, Chester. Courtesy of USDA NRCS Wetland Science Institute.






Taxonomy
- Division:
- Magnoliophyta | - Flowering plants
- Family:
- Asteraceae
- Genus:
- Bidens
- Species:
- Bidens trichosperma
Growth Characteristics
- Growth Habit:
- Forb/herb
- Height:
- 100 cm
- Drought Tolerance:
- Low
- Bloom Months:
- aug,sep,oct
- Bloom Colors:
- yellow
Keystone Species Ranking
- Pollen Specialist Bee Keystone:
- ★★★☆☆ Native pollen specialist bee species supported by this genus (NWF)
Reported Fauna Sightings
Bees: Brown-belted bumble bee (Bombus griseocollis), Common eastern bumble bee (Bombus impatiens)
Garden & Ecology Notes
- Wildlife Value:
- bees, butterflies, birds
- Deer Resistant:
- Yes
Propagation & Germination
- Stratification:
- Cold/moist stratification required — 30–60 days
- Germination Time:
- 14–30 days
- Notes:
- Seeds benefit from light for germination; surface sow or barely cover. Maintain consistently moist conditions.
The above propagation data sourced from Claude AI