Branches are numerous slender and flexible; the outer bark is thin and exfoliates in thin strips. Leaves are sessile, in alternate fascicles, oblong-linear to linear oblanceolate, 0.6-1.5 cm long and less than 0.2cm wide, glabrous or white tomentose above and white tomentose beneath. Flowers are in umbels born at the end of 3-10 cm long peduncles. Calyx is white or pink. Flowering period is from May through October. Achenes are light brown, angled and about 2 mm long.