Nodding Beggartick
Bidens cernua
- Native to:
- Albania, Austria, Baltic States, Belarus, Belgium, Bulgaria, Canada, China, Czechia-Slovakia, Denmark, Finland, France, Germany, Greece, Hungary, India, Ireland, Italy, Japan, Kazakhstan, Kirgizstan, Korea, Krym, Nepal, Netherlands, North Caucasus, Norway, NW. Balkan Pen., Pakistan, Poland, Portugal, Prince Edward I., Romania, Russia, Spain, Sweden, Switzerland, Transcaucasus, Türkiye, Ukraine, United States
Kristian Peters -- Fabelfroh 11:10, 21 October 2007 (UTC)
Taxonomy
- Division:
- Magnoliophyta | - Flowering plants
- Family:
- Asteraceae
- Genus:
- Bidens
- Species:
- Bidens cernua
- USDA Symbol:
- BICE
Growth Characteristics
- Life Cycle:
- Annual
- Growth Habit:
- Forb/herb
- Height:
- 90 cm
- Light Requirements:
- Part Shade
- Drought Tolerance:
- Low
- Bloom Months:
- jul,aug,sep,oct
- Bloom Colors:
- yellow
Wildlife Benefits
- Bees:
- ★☆☆☆☆ Documented bee visitation (GBIF)
- Butterflies & Moths:
- ★☆☆☆☆ Documented Lepidoptera association (GBIF)
- Caterpillars:
- ★☆☆☆☆ Recorded caterpillar host plant (HOSTS Database)
Keystone Species Ranking
- Pollen Specialist Bee Keystone:
- ★★★☆☆ Native pollen specialist bee species supported by this genus (NWF)
Host Plant for Caterpillars
Bidens borer (Epiblema otiosana)
Reported Fauna Sightings
Bees: American bumble bee (Bombus pensylvanicus), Brown-belted bumble bee (Bombus griseocollis), Common eastern bumble bee (Bombus impatiens)
Garden & Ecology Notes
- Wildlife Value:
- birds, waterfowl, bees, butterflies
Soil Requirements
- Soil Type:
- rich, moist, organic soil
- pH:
- 5.5 - 7.0 (slightly acidic to neutral)
- Drainage:
- tolerates poor drainage
- Moisture:
- consistently moist
- Notes:
- commonly found in wetlands and marshes
Propagation & Germination
- Stratification:
- Cold/moist stratification required — 30–60 days
- Germination Time:
- 14–30 days
- Notes:
- Seeds germinate readily in wet conditions; may self-sow in moist areas.
The above propagation data sourced from Claude AI
Pre-treatment: Seeds were cold stratified for 270 days
Source: npn.rngr.net