As nouns the difference between flower and capillaire
is that flower
is a colorful, conspicuous structure associated with angiosperms, frequently scented and attracting various insects, and which may or may not be used for sexual reproduction or flower
can be something that flows, such as a river while capillaire
is (archaic) a syrup prepared from the maidenhair, formerly supposed to have medicinal properties.
As a verb flower
is to put forth blooms.
* flowre (obsolete)
From (etyl) flour, from (etyl) flur, from (etyl) (more at (l)).