An Etymological Dictionary of the German Language/Staude
Staude, f., ‘shrub, bush,’ from the equiv. MidHG. stûde, OHG. stûda, f., a specifically HG. word, wanting in the other Teut. dialects. Its genuine Teut. origin is, however, undoubted. It seems, like stehen, to belong to a primitively cognate Aryan root stū̆, which appears in Gr. στῦλος, ‘pillar,’ and στῦω, ‘to look fixedly,’ and so in stützen.