thyrse

from WordNet (r) 3.0 (2006)

thyrse
    n 1: a dense flower cluster (as of the lilac or horse chestnut)
         in which the main axis is racemose and the branches are
         cymose [syn: {thyrse}, {thyrsus}]

from The Collaborative International Dictionary of English v.0.48

Thyrse \Thyrse\ (th[~e]rs), n. [Cf. F. thyrse.]
   A thyrsus.
   [1913 Webster] Thyrsoid

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