The blue ginger (Dichorisandra thyrsiflora J.C. Mikan) is a member of the Commelinaceae, the family of spiderworts. It is native to Brazil. The stems grow to a meter (3 feet) in height. The leaves are arranged spirally around the stem. The inflorescence is a terminal thyrse, a panicle with an indeterminate central axis. As long as conditions are conducive to blooming, the thyrse will continue to expand upward adding flower buds at the top.
The flowers have three light blue sepals, three dark blue petals, and six stamens. The flowers offer no nectar, yet a bumblebee was actively collecting pollen during the time the photograph was taken. It is thought the flowers may be buzz pollinated. Some stamens offering a food pollen that attracts bees and the true pollen only released when bees disturb the flower. ("Development of the gametophytes, flower, and floral vasculature in Dichorisandra thyrsiflora (Commelinaceae)", C.R. Hardy, D.W. Stevenson, and H.G. Kiss, American Journal of Botany 87(9), 2000)