An attractive little plant, with smooth stems, from six to fifteen inches tall, and pretty little flowers, less than half an inch across, growing singly, or in loose clusters, with white petals which are deeply two-lobed, so that they appear to be ten. The capsule is almost black when ripe. This is common in moist and grassy places in Yosemite and when growing in the shade is taller and more slender than in the open. It reaches an altitude of ten thousand feet and is found in the East and in Asia.
There are many kinds of Cerastium, abundant in the temperate zone, resembling Alsine, but usually downy and therefore called Mouse-ear Chickweeds. The flowers are white, usually with five sepals, five petals notched at the tips or with two lobes, ten or five stamens and five stigmas. The cylindrical capsule, often curved, splits at the top into ten teeth.