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The general growth form of the plant.
|  | Plants mostly or wholly pendulous: these orchids have a pendulous or dangling growth form. |  | Porrect: these orchids project outward from the host, neither erect nor pendulous. | 
|  | Plants erect: these orchids have an upright growth form. |  | Appressed to host/prostrate: these orchids either have their stems and leaves creeping and/or lying flat against the host, or the leaves grow flat against the ground. |