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Agastache

(Genus)

Overview

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Herbs tall perennials. Leaves petiolate, margin dentate. Verticillasters many flowered, in terminal spikes. Calyx tubular-obconical, straight, 15-veined, not hairy annulate inside, throat oblique. Corolla tube straight, gradually dilated to throat, as long as to slightly longer than calyx, not hairy annulate inside, 2-lipped; upper lip straight, 2-lobed; lower lip spreading, 3-lobed, middle lobe widest, spreading, base not clawed, margin undulate, lateral lobes straight. Stamens 4, fertile, much exserted, posterior 2 longer and inclined forward, anterior 2 erect-ascending; anther cells 2, initially almost parallel, later ± divergent. Style subequally 2-cleft. Nutlets smooth, apex hairy.

Nine species: eight in North America and one in E Asia.[1]

Photos

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Taxonomy

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The Genus Agastache is further organized into finer groupings including:

Footnotes

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  1. "Agastache". in Flora of China Vol. 17 Page 106. Published by Science Press (Beijing) and Missouri Botanical Garden Press. Online at EFloras.org.

Sources

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Last Revised: September 22, 2009
2009/09/22 15:48:36