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44. Origanum L., Sp. Pl. 588. 1753. L., Gen. Pl. ed. 5: 256. 1754; Benth. in DC., Prodr. 12: 191. 1848; Boiss., Fl. Or. 4: 546. 1879; Briquet in Engler & Prantl, Nat. Pflanzenfam. ed. 1, 4, 3A: 292. 1897; Mukerjee in Rec. Rot. Surv. Ind. 14, 1: 94. 1940; Borissova in Komarov, Fl. URSS 21: 463. 1954; Hedge & Lamond in Notes Roy. Bot. Gard. Edinb. 23: 123. 1968; letswaart, A taxonomic revision of the genus Origanum, in Leiden Botanical Series vol. 4. 1980; Ietswaart in Rech., f., Fl. Iran. 150: 527. 1982.
I.C. Hedge
Perennial herbs and subshrubs, pleasantly aromatic, pilose with simple hairs or glabrous. Leaves undivided, entire, gland-dotted, petiolate. Vertiallasters 2 (-many)-flowered in spikes usually forming paniculate inflorescences. Bracts distinct from leaves, often imbricate, coloured or not. Flowers hermaphrodite or male sterile (plants gynodioecious). Calyx equally 5-toothed or not, tubular-campanulate, 10-13-nerved, herbaceous, throat densely vinous or not. Corolla bilabiate, rose, purple or white; upper lip emarginate, straight; lower lip spreading 3-lobed, as long as upper; tube included or exserted from calyx. Stamens 4, didynamous, anterior pair longer than posterior, included or exserted; thecae 2-locular, divergent. Style with 2 acute unequal lobes. Nutlets smooth, ovoid or oblong, brown.
About 38 species mostly in the countries of the east Mediterranean; some are used as culinary herbs.
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Calyx with 5 subequal teeth; bracts loosely imbricate, glabrous or pilose; calyx throat densely villous |
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1 Origanum vulgare |
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Calyx sheath-like, split to near base; bracts tightly imbricate, densely tomentose; calyx throat ± glabrous [cultivated] |
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2 Origanum majorana |
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Lower Taxa
Related Synonym(s):
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