Complex sentence: The natural variance of leaf form has been exploited in the selection of plants for the market, broader and lobate leaves of some Alyogyne cultivars may have been hybridized with "Alyogyne huegelii".
Split into simpler sentences: The natural variance of leaf form has been exploited in the selection of plants for the market. Broader and lobate leaves of some Alyogyne cultivars may have been hybridized with "Alyogyne huegelii".