Ranunculus hispidus
North American native perennial in the buttercup family with hairy stems and trifoliate basal leaves, bright yellow flowers on long peduncles that bloom in spring, and a preference for moist woodlands and stream margins, reaching about 15–50 cm in height.
Common Names
Bristly Buttercup, Hispid Buttercup, Hairy Buttercup, Swamp Buttercup, Marsh Buttercup, Rough Buttercup, Hispid Crowfoot
Summary
Ranunculus hispidus, commonly known as bristly buttercup or hispid buttercup, is a perennial native to central and eastern North America with erect or decumbent, densely hairy stems that may root at nodes, basal and alternate leaves usually trifoliolate with toothed or lobed leaflets, and solitary yellow flowers on long hairy peduncles; blooms March to June and yields achenes on a receptacle, giving a bristly texture and bright yellow appearance that forms tufted clumps in woodland and moist to dry forest habitats. Across its range it inhabits woodlands, bottomlands, streamsides, ridges and slopes, and moist to dry forest sites, preferring full sun to partial shade and growing in moist to well‑drained soils; hardy to at least USDA zone 4. Propagation can occur by division or seeds, with seeds dispersed by surface water or passing animals; seeds and foliage are eaten by birds and small mammals, while all parts are mildly toxic if eaten and contact can cause skin irritation. The plant suits native or woodland garden settings and naturalistic plantings, providing bright yellow blossoms in spring to early summer.
Lifecycle
Perennial
Height
6-24 inches
Spread
10-15 inches
Hardiness Zones
Zone 4
Sunlight Requirements
Ideally partial sun to partial shade.
Soil Type
Rich, loamy, well-drained soil that stays evenly moist (not waterlogged) with a pH around 6.0–7.0, tolerating clay, loam, or sandy textures.
Soil Drainage
Well-drained soils (not waterlogged), well-draining loamy soil kept evenly moist but not waterlogged
Soil pH
5.0-7.5
Bloom Color
Yellow
Bloom Time
Spring (March through June)
Foliage Color
Green
Fall Foliage Color
Unknown
Leaf Lifecycle
Deciduous
Growth Rate
Not specified in sources
Seasons of Interest
Spring and Summer
Propagation Methods
Seeds, Layering, Division
Attracts Wildlife
Attracts bees, flies, and birds
Taxonomy
- Taxonomic Rank
- Species
- Author
- Michx.
- Publication
- Fl. Bor.-Amer. 1: 321 (1803)
Superior Taxa
- Kingdom
- Plantae
- Subkingdom
- Pteridobiotina
- Phylum
- Angiosperms
- Order
- Ranunculales
- Family
- Ranunculaceae
- Genus
- Ranunculus
Inferior Taxa
Ranunculus hispidus var. caricetorum
Synonyms
Ranunculus octopetalus Ranunculus hispidus var. hispidus Ranunculus hispidus var. eurylobus Ranunculus hispidus var. marilandicus Ranunculus hispidus var. falsus Ranunculus hispidus var. greenmanii Ranunculus marilandicus Ranunculus repens var. hispidus Ranunculus septentrionalis var. marilandicus Ranunculus repens var. marilandicus