Missouri Evening Primrose
Its lemon-yellow flowers open toward evening, transforming a harsh limestone glade just as sphinx moths begin to fly.
Artwork inspired by Kathryn Cherry
Each four-petaled blossom can be remarkably large compared with the low gray-green plant. Long floral tubes suit long-tongued nocturnal pollinators, and thick winged fruits remain as distinctive identification clues after flowering.
Visit public glades near sunset and watch flowers open without touching the easily bruised petals. Gardeners should use nursery-grown stock; the deep taproot makes wild plants difficult to transplant and essential to leave in place.
- Best clue
- Low sprawling plant with enormous yellow evening flowers and winged seedpods
- Habitat
- limestone glades, rocky prairies, roadcuts, and dry sunny slopes
- Regional status
- Native Ozark and plains wildflower
Quick guide
- Opening clue
- Huge yellow flowers
- Confirm separately
- Evening opening; context: limestone glades, rocky prairies, roadcuts, and dry sunny slopes
A close field reading of Missouri Evening Primrose
- Recognition
- Low sprawling plant with enormous yellow evening flowers and winged seedpods
- Habitat
- Concentrate on limestone glades, rocky prairies, roadcuts, and dry sunny slopes.
- Natural history
- Each four-petaled blossom can be remarkably large compared with the low gray-green plant.
- Evidence to record
- Treat the first impression as a lead, not a conclusion. Compare overall form, leaf attachment, stem, flower or fruit, and habitat before recording Missouri Evening Primrose.
Good to know
A close image of Missouri Evening Primrose is not automatically decisive: habitat, timing, full structure, and the alternative species considered should remain part of the record.
Notice these
- Huge yellow flowers
- Evening opening
- Four broad petals
- Winged seed capsules