germander
noun
ger·man·der (ˌ)jər-ˈman-dər 
: any of a genus (Teucrium) of plants of the mint family with flowers having four projecting stamens, a short corolla tube, and a prominent lower lip
Example Sentences
Recent Examples on the Web Just left of the gate opening, a germander sports tiny flowers of a pale blue that recurs in potted plants elsewhere in the garden. 
Catherine Romano, WSJ, 12 July 2019 They were often edged with small barriers such as low wattle fences made with pliant branches, or tiny living hedges of germander and trimmed boxwood. The Washington Post, The Denver Post, 31 Mar. 2017
Catherine Romano, WSJ, 12 July 2019 They were often edged with small barriers such as low wattle fences made with pliant branches, or tiny living hedges of germander and trimmed boxwood. The Washington Post, The Denver Post, 31 Mar. 2017 Word History
Etymology
Middle English, ultimately from Greek chamaidrys, from chamai on the ground + drys tree — more at humble entry 1, tree entry 1
First Known Use
15th century, in the meaning defined above