This new shrub, which has received the free notice of English horticulturists, is thus described by a correspondent of the Garden: This forms a many-stemmed, vigorous-growing deciduous shrub, which attains a height of from eight to ten feet. Its principal stems are more or less ascending; the branchlets are slender and somewhat pendulous, and when a certain amount of size has been attained, a number of strong shoots of a whitish color are annually produced from the base. It is a native of the northwest coast of America, where it grows in the shape of underwood along the banks of the Columbia River. It is also found in Upper California, in shady woods along the Sacramento River. In this country it grows freely in any common garden soil, and it is readily increased either by seeds, which are ripe in October, or by means of cuttings of the half-ripened shoots in August. It was first introduced in 1826. The leaves are somewhat small, ovate pointed, coarsely toothed on the edges, three to five nerved, and produced on short foot stalks; when in the adult state, they are smooth and bright green above and hirsute beneath.

The flowers are large, pure white and scentless, and are produced in great profusion in terminal compact racemes, of from five to nine flowers each, in the end of July. The fruit or capsule, which is ripe in October, is comparatively large and semisuperior, with a large, broad, spreading calyx attached to it: This species of Mock Orange is one of the finest and most showy of the genus, and it deserves a place in every collection of shrubs, however limited, on account of its producing its flowers in great profusion, and at a season when nearly all other shrubs have done blooming. It is sometimes misnamed Philadelphus Californicus. The length of a full-sized leaf is three inches, including the footstalk, which is not more than half an inch long, and the breadth is two inches.