Which is a type of tree, Dracaena or Cypripedium?
Dracaena (plant) Dracaena ( , derived from the romanized form of the Ancient Greek δράκαινα – "drakaina", "female dragon", is a genus of about 120 species of trees and succulent shrubs. In the APG III classification system, it is placed in the family Asparagaceae, subfamily Nolinoideae (formerly the family Ruscaceae). It has also formerly been separated (sometimes with "Cordyline") into the family Dracaenaceae or placed in the Agavaceae (now Agavoideae).
Cystodium sorbifolium Cystodium is a fern genus in its own Cystodiaceae family. It contains a single species: Cystodium sorbifolium . Because it looks like a small tree fern, it had previously been placed in the tree fern family Dicksoniaceae. Subsequent analysis had moved it to the Lindsaeaceae, but the most recent phylogenetic studies have placed it in its own separate family, Cystodiaceae, with a sister relationship to the current Lindsaeaceae.