The Collaborative International Dictionary
Radiatiform
Radiatiform \Ra`di*at"i*form\ (r[=a]`d[i^]*[a^]t"[i^]*f[^o]rm),
a. (Bot.)
Having the marginal florets enlarged and radiating but not
ligulate, as in the capitula or heads of the cornflower.
--Gray.
Wiktionary
radiatiform
a. (context botany English) Having the marginal florets enlarged and radiate but not ligulate, as in the capitula or heads of the cornflower.