Threadleaf Crowfoot
Ranunculus trichophyllus
Last reviewed: June 2026
Threadleaf Crowfoot is toxic to dogs and cats.
Listed as toxic by the ASPCA Animal Poison Control Center (last reviewed 2026-05-21). If your pet has been exposed, call the ASPCA Animal Poison Control Center at (888) 426-4435and your veterinarian's emergency line.
Pollinator Patch flags toxic plants so you can choose a pet-safe native alternative for your yard.
Light
part shade
Water
high
Size
4"–12" H × 6"–18" W
Bloom
May, Jun, Jul
Native to
AR, AZ, CA, CT and 35 more states
Pollinators
bees, beetles
Browse plants for this ecoregion
Threadleaf crowfoot is a low-growing perennial wildflower with delicate, thread-like leaves and small white buttercup flowers. This native plant thrives in consistently moist soils and partial shade, making it ideal for wet areas where other plants struggle. It blooms from May through July and goes dormant in winter.
In an HOA neighborhood
Threadleaf Crowfoot takes more care to keep looking intentional in a front yard. Maintenance level: high. Consider it for backyard or mid-zone beds rather than the street edge.
Works well in: backyard only.
- Requires consistently wet conditions that may create maintenance issues
- Very informal appearance resembles weeds
- Goes completely dormant leaving bare patches in winter
Wildlife value
The small white flowers attract native bees and beetles during the spring and summer blooming period. Its low growth habit provides some ground-level habitat for small insects.
Native range data from the USDA PLANTS Database and regional native plant society lists. Pollinator and host plant associations compiled from GBIF, iNaturalist, and published ecological literature.
Pollinator Patch flags toxic plants like Threadleaf Crowfoot and shows pet-safe natives for your ecoregion instead.