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Key to families | Table of families and genera
This text currently parallels The Jepson Manual: Vascular Plants of California, Second Edition that is now available at the University of California Press.
Text appearing in blue on this page will not appear in the printed book; it will be displayed only on the Web. Specimen numbers are hyperlinked to records in the Consortium of California Herbaria data view where possible. Taxa are hyperlinked to entries in the Jepson Interchange via the "[Online Interchange]" link.
Perennial [ subshrub] glabrous to short-hairy.
Stem: decumbent to erect, generally branched.
Leaf: petioled to sessile; blade generally ovate, entire to toothed.
Inflorescence: axillary, sessile or peduncled, collectively spike- or panicle-like; wide bract subtending flower, bracts generally overlapping.
Flower: calyx radial, 5-lobed; corolla 2-lipped, upper lip ± entire, lower 3-lobed; stamens 4, enclosed by upper lip or exserted; style lobes ± unequal.
45 species: Medit, w Asia. (Greek: ancient common name, mountain delight) [Tucker & Rollins 1989 Baileya 23:14–27] Cult for tea, cooking herbs, essential oils (Origanum dictamnus L., dittany; Origanum majorana L., sweet marjoram).
1. Calyx funnel-shaped, 2-lipped, 3 upper lobes fused to form a single upper lip, lower lobes well developed ..... O. ×majoricum
1' Calyx tube-shaped, 5-lobed, lobes equal ..... O. vulgare subsp. hirtum
Citation for the whole project: Jepson Flora Project (eds.) [year] Jepson eFlora, http://ucjeps.berkeley.edu/IJM.html [accessed on month, day, year]
Citation for an individual treatment: [Author of taxon treatment] [year]. [Taxon name] in Jepson Flora Project (eds.) Jepson eFlora, [URL for treatment]. Accessed on [month, day, year].
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