The Collaborative International Dictionary of English v.0.48:

Ligulate \Lig"u*late\ (l[i^]g"[-u]*l[asl]t), Ligulated
\Lig"u*la`ted\ (l[i^]g"[-u]*l[=a]`t[e^]d), a. [Cf. F. ligul['e].
   See Ligule, and cf. Lingulate.]
   1. (Bot.) Like a bandage, or strap; strap-shaped.
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   2. Composed of ligules.
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   Ligulate flower, a species of compound flower, the florets
      of which have their corollets flat, spreading out toward
      the end, with the base only tubular.
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