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http://en.wikipedia.org/wiki/Keiki


In horticulture, a keiki (/ˈkeɪkiː/ KAY-kee) is a plant produced asexually by an orchid plant, especially Dendrobium, Epidendrum (sensu lato), and Phalaenopsis orchids. The baby plant is an exact clone of the mother plant, sometimes flowering while still attached to the mother. The word keiki is Hawaiian for "baby" or "child", literally "the little one".

On a Phalaenopsis, a keiki is a small plant growing from one node along the flower stem. Keiki growth may be induced by prolonged exposure to high temperatures during the final phase of spike growth.[1]
On a Dendrobium, the keiki is typically found sprouting along the length of the cane or from the end of the cane. This is induced by the accumulation of growth hormones at that point, either naturally, or by the application of keiki paste.

In addition to keikis which grow on flower spikes, Phalaenopsis may occasionally produce basal keikis at the base of the orchid.