noun, plural ce·ras·ti·ums.
Examples from the Web for cerastium
In fig. 16 the biparous cyme is represented in the flowering branch of Cerastium.
This is the prettiest Cerastium, though not so "mousy" as some, and grows in dry as well as moist situations.Field Book of Western Wild Flowers|Margaret Armstrong
Of the less conspicuous genera, the chick-weeds (Cerastium and Stellaria) are the most familiar.Elements of Structural and Systematic Botany|Douglas Houghton Campbell
The large-flowered Cerastium (C. alpinum) was here every where in abundance, and the prickly Lycopodium.Lachesis Lapponica|Carl von Linn