Its acorn is large (about an inch long) and is nearly enclosed by its cup or receptacle--hence the name "overcup." Shade tree. , Tolerance, Not salt tolerant of inundation by salty or brackish water. Low/no tolerance of salty wind or direct salt spray , Considertions, Falling/fallen acorns can be an issue. , Wildlife, Acorns appreciated by squirrels, deer, turkey, and other wildlife Used by birds for resting and nesting Said (by the Lady Bird Johnson Wildlflower Cen , Habitat, Bottomland floodplains and inundated river levees, lake swamps, rarely on non-wetland portions of floodplains. , Did You Know?, Host plant for the White-M Hairstreak and Horace's Duskywing butterflies.

The name 'passion' is a reference to the crucifixion of Jesus of Nazareth. Parts of the flower are said to resemble instruments used during the crucif , Tolerance, Not salt tolerant of inundation by salty or brackish water. Some tolerance to salty wind but not direct salt spray. , Considertions, This plant spreads via stoloniferous rhizomes just beneath the ground surface. In areas with loose sand or mulch it can spread like wildflower sprouti , Wildlife, The young tendrils of purple passionvine are eaten by wild turkey.  Wildlife eat the fruits. , Habitat, Disturbed, brushy areas or disturbed upland hardwood forest, sandhill and scrub. , Did You Know?, Showy flowers, Showy fruits, Interesting foliage Purple passionflower is larval host plant for numerous butterfly species, including Gulf Fritillary