Yellow Pimpernel
Taenidia integerrima
- Native to:
- Canada, United States
Scott Loarie (www.flickr.com)
Taxonomy
- Division:
- Magnoliophyta | - Flowering plants
- Family:
- Apiaceae
- Genus:
- Taenidia
- Species:
- Taenidia integerrima
- USDA Symbol:
- TAIN
Growth Characteristics
- Life Cycle:
- Perennial
- Growth Habit:
- Forb/herb
- Height:
- 90 cm
- Light Requirements:
- Full Sun
- Drought Tolerance:
- High
- Bloom Months:
- may,jun
- Bloom Colors:
- yellow
Wildlife Benefits
- Bees:
- ★☆☆☆☆ Documented bee visitation (GBIF)
- Butterflies & Moths:
- ★☆☆☆☆ Documented Lepidoptera association (GBIF)
- Caterpillars:
- ★☆☆☆☆ Recorded caterpillar host plant (HOSTS Database)
Host Plant for Caterpillars
Agonopterix clemensella, Agonopterix flavicomella, Black Swallowtail (Papilio polyxenes), Ozark Swallowtail (Papilio joanae)
Garden & Ecology Notes
- Wildlife Value:
- butterflies, native bees, parasitic wasps
- Deer Resistant:
- Yes
- Fire Ecology:
- Fire adapted — tolerates or benefits from fire
- Fire Notes:
- Resprouts from deep taproot following fire; occurs naturally in fire-maintained prairies and open woodlands.
Soil Requirements
- Soil Type:
- dry, rocky or sandy, well-drained soil
- pH:
- 6.0 - 7.5 (slightly acidic to neutral)
- Drainage:
- excellent drainage required
- Moisture:
- dry to moderate
- Notes:
- prefers open, sunny locations
Propagation & Germination
- Stratification:
- Cold/moist stratification required — 60–90 days
- Germination Time:
- 14–42 days
- Notes:
- Seed viability can be low; fresh seed germinates best. Cold stratification improves germination rates.
The above propagation data sourced from Claude AI
Pre-treatment: Cold-moist stratification for 30 days at 1–5°C (34–41°F).
Source: Claude AI
ORGHPS Germination Guide: Sow @ 4C for 3 weeks, then place @ 20C.