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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 cult as ornamental (in CA Cedronella, Leonotis, Monarda, Phlomis). [Harley et al. 2004 Fam Generally Vasc Plant 7:167–275] Moluccella laevis L., shell flower, historical waif in CA. Satureja calamintha (L.) Scheele subsp. ascendens (Jordan) Briq. reported as alien but not naturalized. Salazaria moved to Scutellaria; CA Satureja moved to Clinopodium. —Scientific Editors: Douglas H. Goldman, Bruce G. Baldwin.

Key to Lamiaceae

ACANTHOMINTHA THORNMINT

John M. Miller & James D. Jokerst

Annual, hairy or not, aromatic.
Stem: erect, branched or not.
Leaf: petioled; blade lanceolate to obovate, entire to spiny.
Inflorescence: clusters, head-like, terminal and generally axillary; bracts generally scarious, veins conspicuous, margins spiny.
Flower: calyx 2-lipped, lobes spine-tipped, upper 3 acuminate, lower 2 oblong; corolla funnel-shaped, 2-lipped, white, occasionally tinged lavender or rose, throat cream, upper lip 2-lobed to entire, hooded, lower lip 3-lobed, reflexed; stamens 4, upper 2 reduced, sterile or not; style slender, lower lobe longer.
Fruit: smooth, ovoid.
4 species: s CA-FP. (Greek: thorn mint) [Wagstaff et al. 1998 Plant Syst Evol 209:265–274]
Unabridged references: [Jokerst 1991 Madroño 38:278–286]

Key to Acanthomintha

A. lanceolata Curran SANTA CLARA THORNMINT
NATIVE
Plant soft-hairy, ill-smelling.
Stem: 10–30 cm; hairs short proximally, conspicuously glandular distally.
Leaf: glandular; blade 10–20 mm, lance- oblong to ovate, margin entire to serrate or spiny.
Inflorescence: bracts 9–12 mm, oblong, marginal spines 7–9, 10–12 mm.
Flower: calyx 12 mm; corolla 2–2.5 cm, white, occasionally pink-tipped, glandular-hairy, lips 8–10 mm, upper ± = lower, 2-lobed, deeply hooded; upper stamens fertile, anthers glabrous; style hairy.
Arid, rocky slopes, openings in scrub or woodland, generally on serpentine; < 1200 m. San Francisco Bay Area, Inner South Coast Ranges. Mar–Jun [Online Interchange] {CNPS list}
Unabridged note: On chert, conglomerate, serpentinite, or shale talus and scree.

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Next taxon: Acanthomintha obovata

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Citation for the whole project: Jepson Flora Project (eds.) [year] Jepson eFlora, http://ucjeps.berkeley.edu/IJM.html [accessed on month, day, year]
Citation for an individual treatment: [Author of taxon treatment] [year]. [Taxon name] in Jepson Flora Project (eds.) Jepson eFlora, [URL for treatment]. Accessed on [month, day, year].

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Bioregions in which taxon occursRed area (if present) is the part of the bioregion lying between the upper and lower elevation limits of the taxon;
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.
map of distribution 1

Chart based on elevation range in Manual and elevations and coordinates of CCH records.
Data provided by the participants of the Consortium of California Herbaria.
Note: About half of the CCH records include both elevation and coordinates.
Map made in collaboration with Scott Loarie. Data provided by the participants of the Consortium of California Herbaria.
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CCH collections by month

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