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Annual to shrub [tree, vine], glabrous to hairy, generally aromatic. Stem: generally erect, generally 4-angled. Leaf: generally simple to deeply lobed, generally opposite, generally gland-dotted. Inflorescence: generally cymes, generally many in dense axillary clusters surrounding stem, generally separated by evident internodes or collectively crowded, spike- or panicle-like, occasionally head-like or raceme, 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, occasionally 0, lower lip generally 3-lobed; stamens generally 4, epipetalous, generally exserted, paired, pairs generally unequal, occasionally 2, staminodes 2 or 0; ovary superior, generally 4-lobed to base chambers 2, ovules 2 per chamber, style 1, generally arising from center at junction of lobes, stigmas generally 2. Fruit: generally 4 nutlets, generally ovoid to oblong, smooth.
± 230 genera, 7200 species: worldwide. Many cultivated for herbs, oils (Lavandula, lavender; Mentha, mint; Rosmarinus, rosemary; Thymus, thyme), some cultivated as ornamental (in California Cedronella, Leonotis, Monarda, Phlomis). [Harley et al. 2004 Fam Generally Vasc Plant 7:167–275] Moluccella laevis L., shell flower, historical waif in California. Satureja calamintha (L.) Scheele subsp. ascendens (Jordan) Briq. reported as alien but not naturalized. Salazaria moved to Scutellaria; California Hyptis moved to Condea, California Satureja moved to Clinopodium. —Scientific Editors: Douglas H. Goldman, Bruce G. Baldwin.
Key to Lamiaceae
Perennial herb from rhizome, glabrous or hairy. Stem: erect, branched or not. Leaf: short-petioled to sessile; blade generally ovate to lanceolate, margin toothed to deeply lobed or cut. Inflorescence: head-like in leaf axils. Flower: calyx generally 5-lobed, lobes ± equal, obtuse to short-awned; corolla ± bilateral, not 2-lipped, generally 4-lobed, lobes ± unequal; stamens 2, exserted, staminodes 2, minute, club-shaped; style exserted. Fruit: nutlets ± compressed, truncate to rounded, edges corky-thickened.Key to Lycopus
14 species: temperate North America, Eurasia, Australia. (Greek: wolf foot, from French common name) [Moon et al. 2006 J Plant Res 119:633–644]
Unabridged references: [Moon & Hong 2003 Ann Bot Fenn 40:191–198; Henderson 1962 Amer Midl Naturalist 68:95–135]
Rhizomes ± slender, not thickened at tip. Stem: erect, 2–8 dm, generally glabrous; nodes short-hairy. Leaf: generally short-petioled, 2–8(10) cm; blade oblong to lanceolate, deeply lobed to cut especially in lower 1/2, glabrous to puberulent on veins. Flower: calyx lobes awl-like, short-awned; corolla 2–3 mm, ± = calyx, white. Fruit: nutlet 1–1.5 mm, tip rounded, smooth.
2n=22. Moist areas, marshes, streambanks; < 1000 m. California Floristic Province, East of Sierra Nevada; to British Columbia, eastern North America. Aug–Sep [Online Interchange]
Previous taxon: Lycopus
Next taxon: Lycopus asper
Citation for the whole project: Jepson Flora Project (eds.) 2013. Jepson eFlora, http://ucjeps.berkeley.edu/IJM.html, accessed on Aug 21 2014
Citation for this treatment: [Author of taxon treatment] 2013. Lycopus, in Jepson Flora Project (eds.) Jepson eFlora, http://ucjeps.berkeley.edu/cgi-bin/get_IJM.pl?tid=32313, accessed on Aug 21 2014
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|Geographic subdivisions indicated for the distribution of Lycopus americanus|| Markers link to CCH specimen records. If the markers are obscured, reload the page [or change window size and reload]. Yellow markers indicate records that may provide evidence for eFlora range revision or may have georeferencing or identification issues.
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(Note: any qualifiers in the taxon distribution description, such as 'northern', 'southern', 'adjacent' etc., are not reflected in the map above, and in some cases indication of a taxon in a subdivision is based on a single collection or author-verified occurence).
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