Deciduous shrub with thin brown bark shredding into many layers on older wood.
Leaves 1–2 in. long, with petioles to 3/4 in., 3- to 5-lobed and toothed, shiny green above.
Inflorescence is a round snowball-like cluster. Flowers more or less 1/2 in. across, with 5 white rounded petals, many stamens, hairs divided like a star on the calyx.
Grows in moist places such as streambanks, north-facing slopes, edges of forests, at low to mid-elevations.
Rarity: Locally Common
Flowering Time: Late Spring, Early Summer
Life Cycle: Perennial
Height: 6--12 feet
Habitat: West-Side Forest, Coastal, Moist Riverbanks
Found In: Siskiyous, West Gorge, N Cascades Np, Mt. Rainier Np, Olympic Np
Native: Yes
Source: https://www.pnwflowers.com/flower/physocarpus-capitatus
Additional resource: https://oregonflora.org/taxa/index.php?taxon=7279