Tacca chantrieri. Tacca chantrieri, the black bat flower, is a species of flowering plant in the yam family Dioscoreaceae. Tacca chantrieri is an unusual plant in that it has black flowers. These flowers are somewhatbat-shaped, are up to 12 inches across, and have long 'whiskers' that can grow up to 28 inches.
Unfortunately, black bat flower is very rare in the wild,
Black Bat (Tacca Chantrieri)
$25.00Price
Well-draining soil is a must when growing Tacca bat flowers and should remain slightly moist on a continual basis. Soil should be light and retain moisture but never allowed to get soggy. Try making your own potting mix by adding perlite and vermiculite to a good peat based soil.