Jepson Flora Project: Jepson Interchange    

 
link to manual TREATMENT FROM THE JEPSON MANUAL (1993) previous taxon | next taxon
Jepson Interchange (more information)
©Copyright 1993 by the Regents of the University of California

    THIS PAGE IS NO LONGER UPDATED
    AND IS MAINTAINED FOR ARCHIVAL PURPOSES ONLY
  • Up-to-date information about California vascular plants is available from the Jepson eFlora.

LAMIACEAE

MINT FAMILY

Dieter H. Wilken, except as specifed

Annual, perennial herb, shrub, glabrous to hairy, generally aromatic
Stems generally erect, generally 4-angled
Leaves generally simple to deeply lobed, opposite, generally gland-dotted
Inflorescence: cyme, generally clustered around stem, head-like, separated by evident internodes (terminal in Monardella ) or collectively crowded, spike-like to panicle-like (sometimes raceme or flowers 2–12); subtended by leaves or bracts; flowers sessile or pedicelled
Flower generally bisexual; calyx generally 5-lobed, radial to bilateral; corolla generally bilateral, 1–2-lipped, upper lip entire or 2-lobed, ± flat to hood-like, sometimes 0, lower lip generally 3-lobed; stamens generally 4, generally exserted, paired, pairs unequal, sometimes 2, staminodes 2 or 0; ovary superior, generally 4-lobed to base, chambers 2, ovules 2 per chamber, style 1, arising from center at junction of lobes, stigmas generally 2
Fruit: nutlets 4, generally ovoid to oblong, smooth
Genera in family: ± 200 genera, 5500 species: worldwide. Many cultivated for herbs, oils (Lavandula , lavender; Mentha , mint; Ocimum , basil; Rosmarinus , rosemary; Thymus , thyme), some cultivated as ornamental (in CA Cedronella , Leonotis , Phlomis )
Reference: [Cantino & Sanders 1986 Syst Bot 11:163–185]

MARRUBIUM

HOREHOUND

Perennial
Stems generally erect, generally branched, tomentose
Leaves petioled to subsessile, generally ovate to round, crenate or toothed,
Inflorescences generally axillary, each head-like, generally subtended by leaves
Flower: calyx 10-lobed in CA, lobes spreading or recurved, sharp-pointed; corolla 2-lipped, upper lip entire to 2-lobed, lower lip 3-lobed; stamens 4, fertile, lower pair generally > upper pair, included in tube; style included, lobes ± equal
Fruit: nutlet top truncate
Species in genus: 30 species: Eur
Etymology: (Latin: based on ancient Hebrew word for bitter juice)
Some species cultivated for folk medicine, flavorings, some toxic.

Introduced

M. vulgare L.


Stems ascending to erect, 1–6 dm
Leaf: petiole < blade; blade 1.5–5.5 cm, widely ovate to ± round, base rounded to ± lobed, margin crenate
Flower: calyx 4–6 mm; teeth 10, short-soft-hairy; corolla > calyx, lips ± equal
Chromosomes: 2n=34
Ecology: Disturbed sites, generally overgrazed pastures
Elevation: < 600 m.
Bioregional distribution: California Floristic Province, Desert Mountains (uncommon)
Distribution outside California: widespread worldwide; native to Europe
Flowering time: Spring and summer
Formerly cultivated for tea, flavoring.

previous taxon | next taxon
bioregional map for MARRUBIUM%20vulgare being generated
 


Retrieve Jepson Interchange Index to Plant Names entry for Marrubium vulgare
Retrieve dichotomous key for Marrubium
Overlay Consortium of California Herbaria specimen data by county on this map
Show other taxa with the same California distribution | Read about bioregions | Get lists of plants in a bioregion
Return to the Jepson Interchange main page
Return to treatment index page
Glossary


University & Jepson Herbaria Home Page |
General Information | University Herbarium | Jepson Herbarium |
Visiting the Herbaria | On-line Resources | Research |
Education | Related Sites
Copyright © by the Regents of the University of California