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Jepson Interchange (more information)
©Copyright 1993 by the Regents of the University of California

  • Up-to-date information about California vascular plants is available from the Jepson eFlora.



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]



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]


H. drummondii Benth.

Perennial 15–45 cm
Stem puberulent, becoming glabrous below
Leaf: blade 5–11 mm, 1–4 mm wide, linear to ± oblong, tip generally obtuse
Inflorescence: flowers 3–7; pedicels 2–3.5 mm
Flower: calyx 5–6 mm, lobes converging, throat ± closed in fruit; corolla 7–9 mm, lower lip length = width
Chromosomes: 2n=34,36
Ecology: Rocky, gravelly soils
Elevation: 1400–1700 m.
Bioregional distribution: e Desert Mountains (New York Mtns)
Distribution outside California: to Montana, NE, Mexico

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