Bentham and Hooker placed it in the sub-class Gamopetalae, the series Bicarpellate and Cohort Gentianales. According to Engler, it belongs to the sub-class Metachlymadeae, the sub-order Tubiflorae, the sub-order Verbenineae. Hutchinson places it under the order Lamiales belonging to the phylum Herbaceae.
The family contains about 200 genera and 3200 species. They are mostly cosmopolitan, the chief centre of distribution being the Mediterranean region.
Mainly annual or perennial herbs sometimes shurbs rarely trees, stem squre with sweet aromatic oils, hairy.
Simple, opposit, exstipulate, entire.
Dichasial cyme or verticillaster.
Complete, Zygomorphic, bisexua and hypogynous.
Sepals 5, gamosepalous, imbricate, tubular or bell shaped persistent.
petals 5, gamopetalous imbricate, bilabiate, upper 2 lipped lower 3, usually differentiated into tube and limb.
Stamens 4, with an occasional fifth posterior staminode, epipetalous, didynamous with generally the anterior pair longer, anthers 2-celled, longitudinally dehiscing, connective often well developed, necter-bearing discs often present between the stamens and the ovary.
Carpels 2, medianly placed, united, ovary usually 2 locular as apparently 4-locular by an inward projection of the ovarian wall, with one ovule in each chamber on axile placentae, style single gynobasic stigma 2 lobed.
Typically of 4 nutlets(carcerule).
- Plants herbs, square stem.
- Inflorescence verticillaster.
- Petals bilabiate.
- Stamens 4, didynamous.
- Carpels 2, 4-celled, style gynobasic.
Important Plants of Lamiaceae Family
Economically it is a very important family. Plants described here in different banners are:
|Purpose||Plant name and comments||Image|
|Medicinal||Ocimum americanum L.|
essential oils used in medicine.
Ocimum sanctum L.
leaf juice used for cough, cold and fever.
Mentha arvensis L.
stimulant and carminative.
Mentha piperita L.
source of pepermint oil.
Thymus vulgaris L.
source of thymol also used in medicine.
|Ornamental||Salvia splendous Sello.|
|Coleus blumei Benth.|