Ranunculus eschscholtzii
This western North American alpine-subalpine Ranunculaceae perennial grows in mountain meadows, talus slopes, and along streambanks, bears bright yellow blooms that typically reach 12–18 inches tall, flowers from July to September, and thrives in well-drained, slightly acidic to neutral soil.
Common Names
Eschscholtz's Buttercup, Suksdorf's Buttercup, Threesection Buttercup
Summary
Eschscholtz's buttercup is a perennial herb native to western North America, from Alaska to New Mexico and into western Canada, growing in montane, subalpine, and alpine zones in moist meadows, talus slopes, and along streambanks. It forms erect to decumbent stems 3–30 cm tall with glabrous foliage; basal leaves are reniform to cordate and lobed, while stem leaves are reduced; flowers are borne 1–3 per plant on slender pedicels, with five to eight yellow petals surrounding a central nectary, and heads of achenes are slender and glabrous. Blooms occur in summer and the plant is notable for bright yellow flowers and shiny foliage.
Propagation is by seed; in cultivation it tolerates moist, humus-rich soils and a semi-shady site. It offers bright yellow summer blooms that attract pollinators and can contribute to erosion control in appropriate settings; all parts are poisonous if ingested, so handling requires caution.
Lifecycle
Perennial
Height
2-10 inches
Spread
0 inches
Sunlight Requirements
Ideally full sun to partial shade.
Soil Type
Humus-rich, moist, medium-textured, well-drained, fertile soil with pH 6.0–7.0
Soil Drainage
Well-drained
Soil pH
6.2–7.0
Bloom Color
Yellow
Bloom Time
Summer
Foliage Color
Green
Fall Foliage Color
Green, Yellow
Leaf Lifecycle
Deciduous
Growth Rate
Moderate
Seasons of Interest
Summer
Propagation Methods
Seeds, Division, Cuttings
Attracts Wildlife
Attracts bees and butterflies
Taxonomy
- Taxonomic Rank
- Species
- Author
- Schltdl.
- Publication
- Animadv. Bot. Ranunc. Cand. 2: 16 (1820)
Superior Taxa
- Kingdom
- Plantae
- Subkingdom
- Pteridobiotina
- Phylum
- Angiosperms
- Order
- Ranunculales
- Family
- Ranunculaceae
- Genus
- Ranunculus
Inferior Taxa
Ranunculus eschscholtzii var. eximius Ranunculus eschscholtzii var. helleri Ranunculus eschscholtzii var. oxynotus Ranunculus eschscholtzii var. suksdorfii Ranunculus eschscholtzii var. trisectus
Synonyms
Ranunculus ocreatus Ranunculus eschscholtzii var. eschscholtzii Ranunculus pauperculus Ranunculus helleri