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, 03:54, 6 April 2007
[[Orchid]]s with '''sympodial''' growth have a specialized lateral growth pattern in which the terminal [[bud]] dies. The growth continues by development of new shoots sprouting from or next to the ones of previous years (such as in the genus ''[[Cattleya]]'' or ''[[Cymbidium]]'').
The base of the [[Plant stem|stem]] of sympodial [[epiphyte]]s, or in some species essentially the entire stem, may be thickened to form what is called a [[pseudobulb]]. These contain food reserves for drier periods. At their end appear one or two [[leaf|leaves]], or sometimes four or more.
Some sympodial [[terrestrial plant |terrestrial]]s, such as ''[[Orchis]]'' and ''[[Ophrys]]'', have two pseudobulbs between the [[root]]s. One is used as a food reserve for wintery periods, and provides for the development of the other pseudobulb, from which visible growth develops.
In warm and humid climates, many terrestrial orchids do not need pseudobulbs.
==See also==
* [[monopodial]]
[[Category:Orchids]]
[[Category: plant morphology]]