outward-developing

from WordNet (r) 3.0 (2006)

outward-developing
    adj 1: away from an axis, as in a flower cluster in which the
           oldest flowers are in the center, the youngest near the
           edge

from The Collaborative International Dictionary of English v.0.48

outward-developing \outward-developing\ adj. (Botany)
   Developing away from an axis, as in a flower cluster in which
   the oldest flowers are in the center, the youngest near the
   edge.
   [WordNet 1.5]