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LAMIACEAE (Labiatae) MINT FAMILY

Dieter H. Wilken & Margriet Wetherwax, family description, key to genera

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

GLECHOMA GROUND IVY

John M. Miller & Dieter H. Wilken

Perennial herb, glabrous to sparsely hairy, flowers only bisexual or only pistillate. Stem: prostrate to decumbent, occasionally erect, generally rooting at lower nodes. Leaf: petioled; blade round to reniform, crenate to toothed. Inflorescence: flowers 2–5 in leaf axils; bracts minute or 0. Flower: calyx 5-lobed, tube 15-veined, lobes unequal, upper >> lower; corolla 2-lipped, upper lip 2-lobed, ± flat, lower lip 3-lobed, central lobe > lateral lobes; stamens 4, fertile, upper pair >> lower; style lobes ± equal.
10 species: temperate Eurasia. (Greek: ancient name) [Wagstaff et al. 1998 Plant Syst Evol 209:265–274]
Unabridged references: [Cronquist & Reveal 1984 Intermountain Flora 4:317–318]

G. hederacea L.
NATURALIZED
Stem: 1–5 dm; hairs spreading to reflexed. Leaf: petiole generally 1–2 cm; blade 1–2 cm, ± round to reniform. Inflorescence: bracts bristle-like. Flower: calyx 3–7 mm, fine bristly to puberulent; corolla violet, purple-spotted, in bisexual flower generally 15–25 mm, in pistillate flower 8–15 mm.
2n=18,36. Disturbed, generally moist, shaded places; < 800 m. Northwestern California, Sierra Nevada Foothills, Central Western California, South Coast; widespread North America; native to Europe. Mar–Jun [Online Interchange]

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Citation for the whole project: Jepson Flora Project (eds.) 2013. Jepson eFlora, http://ucjeps.berkeley.edu/IJM.html, accessed on Jul 29 2014
Citation for this treatment: [Author of taxon treatment] 2013. Glechoma, in Jepson Flora Project (eds.) Jepson eFlora, http://ucjeps.berkeley.edu/cgi-bin/get_IJM.pl?tid=27041, accessed on Jul 29 2014

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Bioregions in which Glechoma hederacea occurs 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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CCH collections by month

Duplicates counted once; synonyms included.
Species do not include records of infraspecific taxa.
Blue line denotes eFlora flowering time.