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Vascular Plants of California
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Stachys rigida var. quercetorum

Higher Taxonomy
Family: Lamiaceae (Labiatae)View DescriptionDichotomous Key
Common Name: MINT FAMILY
Habit: 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.
Genera In Family: +- 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). Note: 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.
eFlora Treatment Author: Dieter H. Wilken & Margriet Wetherwax, family description, key to genera, except as noted
Scientific Editor: Douglas H. Goldman, Bruce G. Baldwin.
Genus: StachysView DescriptionDichotomous Key

Habit: 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.
Etymology: (Greek: ear of corn, from inflorescence) Note: Stachys arvensis L., Stachys floridana Shuttlew. historical waifs.
eFlora Treatment Author: John B. Nelson
Reference: Mulligan & Munro 1989 Naturaliste Canad 116:35--51
Unabridged Reference: Epling 1934 Fedde Rep Sp Nov Regni Veg 80:1--75
Species: Stachys rigidaView Description 

Stem: generally erect to +- decumbent, 0.6--1 m, +- glabrous to soft- or stiff-hairy, +- glandular. Leaf: blade 5--9 cm, ovate to lanceolate, glabrous to soft-hairy, occasionally glandular, base rounded to cordate, tip acute to obtuse. Inflorescence: clusters 6--10-flowered. Flower: corolla pink, tube 6--10 mm, ring of hairs strongly oblique.

Stachys rigida Benth. var. quercetorum (A. Heller) G.A. Mulligan & D.B. Munro
Leaf: blade ovate, glabrous to soft-hairy, base cordate, tip acute to obtuse, margins generally and prominently crenate. Flower: calyx lobes generally reflexed in age; corolla generally spreading, lower lip reflexed. Chromosomes: 2n=66.
Ecology: Moist to +- dry places; Elevation: < 2500 m. Bioregional Distribution: NW, GV (rare), CW, SW; Distribution Outside California: to Oregon, Baja California. Flowering Time: Mar--Oct
Synonyms: Stachys quercetorum A. Heller; Stachys ajugoides Benth. var. quercetorum (A. Heller) Jeps. & Hoover; Stachys gracilenta A. Heller; Stachys rigida subsp. quercetorum (A. Heller) Epling; Stachys viarum A. Heller; Stachys ajugoides Benth. var. rigida (Benth.) Jeps. & Hoover, in part
Jepson eFlora Author: John B. Nelson
Reference: Mulligan & Munro 1989 Naturaliste Canad 116:35--51
Index of California Plant Names (ICPN; linked via the Jepson Online Interchange)

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Citation for this treatment: John B. Nelson 2012, Stachys rigida var. quercetorum, in Jepson Flora Project (eds.) Jepson eFlora,, accessed on June 22, 2024.

Citation for the whole project: Jepson Flora Project (eds.) 2024, Jepson eFlora,, accessed on June 22, 2024.

Stachys rigida  
var. quercetorum
click for enlargement
©2015 Keir Morse
Stachys rigida  
var. quercetorum
click for enlargement
©2015 Keir Morse
Stachys rigida  
var. quercetorum
click for enlargement
©2015 Keir Morse
Stachys rigida  
var. quercetorum
click for enlargement
©2015 Keir Morse
Stachys rigida  
var. quercetorum
click for enlargement
©2015 Keir Morse

More photos of Stachys rigida var. quercetorum
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Geographic subdivisions for Stachys rigida var. quercetorum:
NW, GV (rare), CW, SW
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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).


Data provided by the participants of the  Consortium of California Herbaria.
View all CCH records
All markers link to CCH specimen records. The original determination is shown in the popup window.
Blue markers indicate specimens that map to one of the expected Jepson geographic subdivisions (see left map). Purple markers indicate specimens collected from a garden, greenhouse, or other non-wild location.
Yellow markers indicate records that may provide evidence for eFlora range revision or may have georeferencing or identification issues.

CCH collections by month

Duplicates counted once; synonyms included.
Species do not include records of infraspecific taxa, if there are more than 1 infraspecific taxon in CA.
Blue line denotes eFlora flowering time (fruiting time in some monocot genera).