It is listed as endangered by the state of Florida and as critically imperiled in South Florida by The Institute for Regional Conservation. Specimen shrub. Foliage is shiny, attractive. Grown mostly for its interesting, translucent fruits.

The genus name honors the English botanist William Vernon, who did fieldwork in North America. Back of a moist wildflower garden. Can also use on the edges of natural or created wetlands and streams.

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 crucifixion. Given the proper support this plant makes an excellent climbing vine hedge.

Moist wildflower garden. Makes a good mass planting on the edge of a pond or ditch.

Large clump-forming grass with uses as tall groundcover, specimen plant, or border plant. Nice along edges of ponds and water features.