Little Bur
Ranunculus testiculatus
Last reviewed: June 2026
Light
full sun
Water
low
Size
4"–12" H × 4"–8" W
Bloom
Apr, May, Jun
Native to
WY
Pollinators
bees, beetles
Browse plants for this ecoregion
Ranunculus testiculatus is a small annual wildflower that grows 4-12 inches tall with a compact spread. It produces bright yellow buttercup-like flowers from April through June and thrives in full sun with minimal water requirements. This low-growing plant completes its entire life cycle in one growing season.
In an HOA neighborhood
Little Bur takes more care to keep looking intentional in a front yard. Maintenance level: low. Consider it for backyard or mid-zone beds rather than the street edge.
Works well in: backyard only.
- Dies back completely after seed set, leaving bare spots
- Can spread aggressively and may be considered weedy
- Common name 'bur buttercup' suggests spiny seed pods
Wildlife value
This plant provides nectar and pollen for bees and beetles during its spring blooming period. Its early flowering time makes it valuable for pollinators emerging in late spring.
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.
Does Little Bur fit your yard? Open it in Pollinator Patch to check it against your sun, soil, and HOA-conscious filters.