Noun capitulum has 3 senses
  1. capitulum, head - a dense clusters of flowers or foliage; "a head of cauliflower"; "a head of lettuce"
    --1 is a kind of plant organ
  2. ear, spike, capitulum - fruiting spike of a cereal plant especially corn
    --2 is a kind of fruit
    --2 is a part of corn, maize, Indian corn, Zea mays
    --2 has particulars: mealie
  3. crown, capitulum, treetop - the upper branches and leaves of a tree
    --3 is a kind of top
    --3 is a part of tree