The material in which an orchid is container-grown, it may be organic such as fir bark or inorganic such as lava rock.
For orchids, the middle category of light.
The actively growing area of the plant from which mature tissues such as leaf, stems, flowers and roots originate. Technically, the actively dividing cell tissue taken from root tips and from the tips of new growths or floral shoots; sometimes loosely used to refer to the mericlone plant that is produced from the laboratory propagation of meristern tissue.
Orchids which grow upward from a single stem producing leaves and flowers along that stem. One of the two forms of orchid vegetative growth (the other is sympodial), wherein a single vegetative shoot grows continually upward, such as in the central rosette of Phalaenopsis and the more vine-like Vanda.
Having more than one flower per inflorescence.