Why the eastern skunk cabbage is a weird and wonderful plant

1. The spatheā€”a 5th floral structure. Most flowers have a four-part anatomical arrangement. The two central whorls (layers) of reproductive parts include a pistil (a sticky stigma borne on a style leading down to the ovary) surrounded by stamens (filaments bearing anthers, which hold pollen grains). The outer whorls are [...]