Shrubs, bushy to moundlike, to 10 dm; branches of current season 12–45 cm. Leaves: petiole absent; blade ovate to elliptic, with marked size dimorphism, to 45 × 15 mm, much larger on main stems than on fertile branches, base acute to rounded, margins usually serrate or crenate, distal often entire, apex acute. Inflorescences to 40-flowered. Flowers conspicuously bilaterally symmetric; petals spatulate, to 6.5 mm, claws postgenitally distally coherent, forming slitted corolla tube; stamens exserted laterally through slits between petal claws. 2n = 46.
Home