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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

STACHYS HEDGE-NETTLE

John B. Nelson

Perennial herb [annual], hairy, generally glandular; rhizome slender or 0. Stem: decumbent to erect, 0.1–2.5 m. Leaf: 1.5–18 cm, proximal generally petioled, distal ± sessile; blade oblong to ovate, serrate to crenate. Inflorescence: spike-like, generally terminal, interrupted or continuous, bracted. Flower: calyx bell-shaped, ± radial, veins 5–10, lobes 5, erect or spreading, triangular, tips sharp; corolla white, yellow, pink, red, magenta, or purple, tube narrow, with internal ring of hairs generally above base, perpendicular to oblique to tube axis, generally with short, pouched spur on the lower side of the tube, upper lip erect or generally parallel to tube axis, concave, entire (notched), generally hairy, lower lip perpendicular to tube axis or reflexed, 3(2)-lobed, glabrous to hairy. Fruit: oblong to ovoid, brown to black, smooth or irregularly, minutely roughened.
± 300 species: generally temperate; some cultivated for ornamental or edible rhizomatous tubers. (Greek: ear of corn, from inflorescence) [Mulligan & Munro 1989 Naturaliste Canad 116:35–51] Stachys arvensis L., Stachys floridana Shuttlew. historical waifs.
Unabridged references: [Epling 1934 Fedde Rep Sp Nov Regni Veg 80:1–75]

Key to Stachys

S. mexicana Benth.
NATIVE
Stem: erect or sprawling, 0.5–1.5 m, simple to branched distally, hairy, occasionally glandular. Leaf: petiole well developed, hairy, blade ovate, serrate, hairy and glandular, cordate, tip acute. Inflorescence: soft-downy, elongated, bracts gradually reduced distally, appearing leafy; clusters 6–8-flowered. Flower: calyx tube hairy, 3–5 mm, lobes 2–2.5 mm, generally reflexed or spreading in age; corolla magenta to purple, tube 7–8 mm, lower lip 6–7 mm.
2n=66. Thickets, damp places, generally coastal; < 500 m. Northwestern California, Sacramento Valley, San Francisco Bay Area (rare); Oregon, Washington, Alaska. [Stachys ajugoides Benth. var. rigida (Benth.) Jeps. & Hoover, in part] Apr–Sep [Online Interchange]

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Next taxon: Stachys pilosa

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Citation for the whole project: Jepson Flora Project (eds.) 2013. Jepson eFlora, http://ucjeps.berkeley.edu/IJM.html, accessed on Nov 22 2014
Citation for this treatment: [Author of taxon treatment] 2013. Stachys, in Jepson Flora Project (eds.) Jepson eFlora, http://ucjeps.berkeley.edu/cgi-bin/get_IJM.pl?tid=45368, accessed on Nov 22 2014

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Geographic subdivisions indicated for the distribution of Stachys mexicana 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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map of distribution 1
(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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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 eFlora flowering time.