Salicaceae Willow Family
Trees or shrubs; leaves simple, alternate, undivided, with stipules
either minute and soon falling or leafy and persistent; inflorescence
from axillary buds of the preceding season, appearing with or before the
leaves, in nearly erect, spreading or drooping catkins, sterile and
fertile on separate trees; flowers one to each bract, without calyx
or corolla; stamens one to many; style short or none; stigmas 2, entire
or 2-4-lobed; fruit a 2-4-celled capsule.