One of the mysteries of the English language finally explained.
Any of various perennial plants constituting the genus Agastache (family Lamiaceae (Labiatae)), native chiefly to North America, having multiple spikes of tubular pink to purple flowers and scented leaves; especially (in later use) any of the many cultivated varieties grown in gardens for ornament. Also (in form Agastache): the genus itself.
Early 20th century. From scientific Latin Agastache, genus name (J. F. Gronovius Flora Virginica 88) from ancient Greek ἄγαν very much + στάχυς ear of corn, so called on account of the multiple flowering spikes of the plant.
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