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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]

HEDEOMA

MOCK PENNYROYAL

Annual, perennial herb, subshrub, aromatic; hairs short, spreading to recurved
Stems decumbent to erect, branched at base
Leaf short-petioled to sessile; blade ovate to linear, entire or toothed
Inflorescences axillary at upper stem nodes, each head-like, subtended by leaves; bracts minute
Flower: calyx 2-lipped, upper lip 3-lobed, lower lip 2-lobed, lobes acuminate, sharp-pointed, tube swollen or pouched below middle; corolla 2-lipped, upper lip > lower, entire to 2-lobed, lower lip 3-lobed; stamens 2, under upper lip or exserted, staminodes minute or 0; style unequally 2-lobed
Fruit: nutlets pitted, glaucous, gelatinous when wet
Species in genus: 38 species: North America., South America
Etymology: (Greek: ancient name for strongly aromatic mint)
Reference: [Irving 1980 Sida 8:218–295]

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