Sign up Log in

Smallanthus uvedalia

This tall, coarse perennial has hairy stems, enormous lobed leaves forming a cup around the stem, and bright yellow flowers that attract many butterflies and bees, and is native to moist, shaded woodlands across the eastern United States.

Is Smallanthus uvedalia growing in your garden? Record it and all of your plants in Known.

Common Names

Bear's Foot, Hairy Leafcup, Yellow Flower Leafcup, Yellow Leafcup

Summary

Smallanthus uvedalia, commonly known as Bear’s-foot or Hairy Leafcup, is a tall, coarse perennial in the Asteraceae native to North America, especially the eastern United States, reaching about 3–8 feet in height with stout hollow stems and large opposite leaves that are palmately lobed, giving a bear-foot appearance, with yellow flower heads consisting of 7–13 ray florets surrounding 40–80 disc florets, blooming from July to September and attracting bees and butterflies, in cultivation it prefers full sun to partial shade and moist, well-drained soils, tolerates a range of textures from clay to loam, suitable for back borders, woodland edges, and naturalized areas, its tall habit may require staking in windy sites, propagation can be by division (best in early spring) or by seeds, hardiness generally falls within USDA zones 5–9, ethnobotanical uses include root tinctures as a stimulant and laxative and hair-tonic applications, historically roots have been used to treat rheumatism, swellings, and skin sores

Lifecycle

Perennial

Height

3-10 feet

Spread

4-14 inches

Hardiness Zones

Zones 6a-9b

Sunlight Requirements

Ideally full Sun, tolerates partial sun to partial shade, sources describe Smallanthus uvedalia as a generalist with no strong preference for light

Soil Type

No single ideal soil type; tolerates a broad range from base-rich calcareous and damp, deep, rich, well-drained soils to clay, loam, silt, or sand, with soils that remain moist in summer.

Soil Drainage

Well-drained soil

Soil pH

Slightly acidic to mildly alkaline soils

Bloom Color

Yellow

Bloom Time

Summer (June–September)

Foliage Color

Green

Fall Foliage Color

Green

Leaf Lifecycle

Deciduous

Growth Rate

Fast

Seasons of Interest

Summer and Fall

Propagation Methods

Seeds, Basal cuttings, Division

Attracts Wildlife

Attracts bees, butterflies, other pollinators, and birds

Taxonomy

Taxonomic Rank
Species
Author
(L.) Mack.
Publication
Man. S.E. Fl. [Small] 1406. 1933 [30 Nov 1933]

Superior Taxa

Kingdom
Plantae
Subkingdom
Pteridobiotina
Phylum
Angiosperms
Order
Asterales
Family
Asteraceae
Subfamily
Asteroideae
Tribe
Millerieae
Subtribe
Espeletiinae
Genus
Smallanthus

Synonyms

Osteospermum uvedalia Polymnia uvedalia var. densipilis Polymnia uvedalia var. uvedalia Polymnia uvedalia var. floridana Polymniastrum uvedalia Polymnia uvedalia

References

Smallanthus uvedalia in Flora of North America @ e…. efloras.org.
How To Grow Smallanthus uvedalia - EarthOne. earthone.io.
Smallanthus uvedalia (L.) Mackenzie - Encyclopedia…. eol.org.
Smallanthus uvedalia - Species Details. florida.plantatlas.usf.edu.
Smallanthus uvedalia (L.) Mack. ex Small GRIN-Glob…. genebank.ilri.org.
Hairy Leafcup Care 101: Water, Light & Growing Tip…. greg.app.
Smallanthus uvedalia. nativegrasslands.org.
Smallanthus uvedalia. newyork.plantatlas.usf.edu.
Smallanthus uvedalia (L.) Mack. ex Small GRIN-Glob…. npgsweb.ars-grin.gov.
Smallanthus uvedalia - L.. pfaf.org.
Smallanthus uvedalia (Bear's Foot, Hairy Leafcup .…. plants.ces.ncsu.edu.
USDA Plants Database. plants.usda.gov.
Smallanthus uvedalia (L.) Mack. | Plants of the Wo…. powo.science.kew.org.
Digital Atlas of the Virginia Flora. vaplantatlas.org.
Leafcup - July 2015 Wildflower of the Month - John…. vnps.org.
Bear's Foot, Yellow leafcup – Smallanthus uvedaliu…. wildflowergardener.wordpress.com.
Hairy leafcup - Florida Wildflower Foundation. flawildflowers.org.
Smallanthus uvedalius (Vascular Plants of Lost Cov…. inaturalist.org.
Smallanthus uvedalia (L.) Mack.. missouriplants.com.
Species Factsheets - Pennsylvania Natural Heritage…. naturalheritage.state.pa.us.
Taxonomy browser (Smallanthus uvedalia). ncbi.nlm.nih.gov.
[PDF] Smallanthus uvedalia - NJ.gov. nj.gov.
Polymnia uvedalia Bearsfoot - Prairie Moon Nursery. prairiemoon.com.
Smallanthus uvedalius | yellow bear's foot /RHS. rhs.org.uk.
World Flora Online. worldfloraonline.org. June 2024.