Complex sentence: Further research found that some hybrid flowers may be as equally as attractive to pollinators as pure species flowers; also that Iris brevicaulis and Iris hexagona are primarily pollinated by bumblebees.
Split into simpler sentences: Further research found that some hybrid flowers may be as equally as attractive to pollinators as pure species flowers. Also that Iris brevicaulis and Iris hexagona are primarily pollinated by bumblebees.