| An Eastern Tiger Swallowtail butterfly is attracted to a Purple Coneflower in Durham County. The Eastern Tiger Swallowtail, along with the Monarch, is one of our most recognizable butterflies. After mating, female tiger swallowtails lay eggs on leaves of host plants. Host plants are the plants that caterpillars will eat. Host plants of Eastern Tiger Swallowtails include Yellow Poplar, Black Willow, Black Cherry, American Hornbeam, Red Maple, Spicebush, American Elm, and Sassafras. Eastern Tiger Swallowtails are found all over, especially near water, but also in meadows, gardens, parks, and roadsides. For more on this butterfly, go to
http://www.fcps.edu/StratfordLandingES/Ecology/mpages/eastern_tiger_swallowtail.htm.
The Purple Coneflower and its three cousins, Black Sampson (E. angustifolia), Pale Purple Coneflower (E. pallida) and E. atrorubens (no common name), are members of the sunflower family or Compositae.Ę The Compositae have two kinds of flowers combined in one flower head - strap-like ray flowers around the outside of the head and disk flowers in the center of the head.Ę The ray flowers make up what would be thought of as the petals.
For more on these flowers go to http://www.gpnc.org/purple.htm. |