WordNet sense 1 (especially of petals or leaves in bud; having margins rolled inward):

involute, involute

WordNet sense 2 (curled or wound (especially in concentric rings or spirals)):

coiled

WordNet sense 3 (uttered with a trill):

rolling, trilled

WordNet sense 4 (capable of being uttered or pronounced):

pronounceable

WordNet sense 5 (rolled up and secured):

furled

WordNet sense 6 (confined by bonds):

bound