''Eysenhardtia polystachya'', the kidneywood, is a
tree
In botany, a tree is a perennial plant with an elongated stem, or trunk, usually supporting branches and leaves. In some usages, the definition of a tree may be narrower, including only woody plants with secondary growth, plants that are ...
from Mexico, growing along forest edges and water courses at elevations of 150–3000 m.
Previously it was used as a source of
lignum nephriticum.
References
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polystachya
''Polystachya'', abbreviated Pol in horticultural trade, and commonly known as yellowspike orchid, is a flowering plant genus in the orchid family (Orchidaceae). This rather distinctive genus was described by William Jackson Hooker in 1824 and is ...
Flora of Mexico
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