USDA, NRCS. 2018. The PLANTS Database (http://plants.usda.gov, 28 March 2018). National Plant Data Team, Greensboro, NC 27401-4901 USA.
Illustration courtesy of University of Florida/IFAS Center for Aquatic and Invasive Plants. Used with permission.
What is Large-flower Primrose?
- 1.18-3.94 inches long
- 1.10-3.94 inches wide
- Leaf stalk 0.04-0.2 inches long
- Petals 0.47-0.59 inches long
- 2x as many stamen than sepals
- Dry seed pod
- 0.51-0.98 inches long
- 0.12-0.16 inches thick
- 0.4-0.5 inches long
- 0.4-0.47 inches thick
- Up to 3 feet tall
Where Does it Grow?
Large-flower primrose can be found in shallow marshes, ponds and ditches.
Is it Invasive?
Large-flower primrose is non-native to North America. It is an aggressive invader that out-competes the native vegetation for vital resources.
This plant is not native to North America and should not be introduced into new water bodies and should be treated with herbicide when present.