Fancy or Strap? There are differences in appearance and performance between strap caladiums and fancy caladiums. Physically, strap caladiums tend to be narrower lance-leaf caladiums, usually short in height and may have better sun tolerances. Generally, fancy leaf caladiums have larger & heart shaped leaves and taller growth heights. The petiole is centered on the underside of a fancy leafed caladium Strap leafed caladiums – the petiole meets the underside of the leaf at the apex.