Japan Flora: Shrub; branches usually not or scarcely angled, glabrous or pubescent; leaves lanceolate to ovate, sometimes broadly ovate, 1-8 cm. long, 0.8」l cm. wide, acute to acumi­nate, rounded to narrowly cuneate at base, irregularly and loosely acute-toothed or incised-toothed, pale green to glaucous beneath, glabrous on both sides or pubescent beneath, the petioles 1-5 mm. long, glabrous to pubescent; inflorescence flat-topped, often lobed, rather large to small, sometimes short- pubescent, densely many-flowered; flowers pale pink, rarely white, 3-6 mm. across; calyx-teeth deltoid, erect, later ob­liquely spreading, acute; stamens longer than the petals; disc with nectary glands on the margin; fruit glabrous. May-Aug. Mountains; Hokkaido, Honshu, Shikoku, Kyushu; rather common and very variable. Korea, China to the Himalayas.

var. bullata (Maxim.) Makino. Small pubescent shrub; leaves small, broadly ovate, bullate above; flowers small, without glands. Rarely cultivated in our area, not known as a wild plant, possibly of garden origin.