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| Acanthomintha | ||||||||||||
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Acanthomintha is a genus of the Lamiaceae, or mint family. The Acanthomintha genus is commonly referred to as Thornmint. There are a number of species within this genus, including the endangered species Acanthomintha duttonii. All four thornmints are native to the California Floristic Province. The origin of the genus name is from the identical Greek word meaning thornmint.
There are four species of Acanthomintha:
- Acanthomintha duttonii (Abrams) Jokerst: San Mateo thorn-mint
- Acanthomintha ilicifolia (Gray): San Diego thorn-mint, San Diego thornmint
- Acanthomintha lanceolata (Curran): Santa Clara thorn-mint
- Acanthomintha obovata (Jepson): San Benito thorn-mint
Genus morphology
All thornmints are aromatic annual wildflowers with erect stems and petioled leaves. Inflorescences of thornmints are head-like, in clusters and terminal in form. In the The Acanthomintha genus leaf veins are conspicuous and the leaf margins are always spiny, leading to the common name. The characteristics of the genus flower are with a two-lipped calyx and lobes spine-tipped, re-inforcing the basis of the common name. All Acanthomintha have the upper three lobes of its calyx acuminate and the lower two lobes oblong in shape. Acanthomintha corollae are funnel shaped, always white, but sometimes with a tinging of rose or lavender color. The corolla throat is cream colored and its upper lip is hooded, while the longer lower lip is reflexed and three-lobed. All Acanthomintha have four stamens, with the upper two reduced, whether they are sterile or not. Thornmint styles are slender and their fruit is ovoid in shape with smooth exterior texture.
See also
External links
Wikipedia content modification information:
- This page was last modified on 11 November 2008, at 11:40.
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