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Vascular Plants of California
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Scutellaria lateriflora
SIDE-FLOWERING SKULLCAP


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: ScutellariaView DescriptionDichotomous Key


Common Name: SKULLCAP
Habit: Perennial herb or shrub, generally hairy, occasionally glandular, from rhizomes or tubers. Stem: erect, branched or not. Leaf: basal and cauline; proximal generally petioled; distal cauline +- sessile. Inflorescence: flower 1--2 per leaf axil, or appearing as a bracted raceme. Flower: calyx 2-lipped, lips +- equal, enclosing nutlets, back of upper lip dome-like or transversely ridged, generally concave-depressed behind ridge; corolla 2-lipped, white to violet-blue, upper lip < lower, +- entire, hood-like, lower lip 3-lobed; stamens 4, pairs +- equal, enclosed by upper corolla lip, anthers ciliate, lower 2 1-chambered; disk below ovary generally green-yellow. Fruit: generally ovoid, generally minutely papillate, brown or black.
Etymology: (Latin: tray, from calyx dome or ridge) Note: Salazaria occasionally treated as separate genus.
eFlora Treatment Author: Richard G. Olmstead
Reference: Olmstead 1990 Contr Univ Michigan Herb 17:223--265
Unabridged Reference: Paton 1990 Kew Bull 45:399--450; Wagstaff et al. 1998 Pl Syst Evol 209:265--274
Scutellaria lateriflora L.
NATIVE
Habit: Plant 20--60 cm; rhizomes slender. Stem: glabrous or hairs sparse, hairs << 0.5 mm, ascending to upcurled, generally not glandular. Leaf: basal generally 0; proximal cauline petioles 10--20 mm; distal cauline blades ovate to lanceolate, +- dentate, bases rounded to truncate, tips acute. Inflorescence: raceme or spike, bracted; bracts < 8 mm. Flower: pedicel 1--3 mm; calyx 1.5--3 mm, upper lip back dome-like; corolla 6--8 mm, blue, lower lip blue, inner surface glabrous to sparsely soft-hairy. Fruit: +- spheric, brown.
Ecology: Marshes, wet meadows; Elevation: < 500 m. Bioregional Distribution: Deltaic GV, SNE (Saline Valley); Distribution Outside California: to British Columbia, eastern United States. Flowering Time: May--Jul
Jepson eFlora Author: Richard G. Olmstead
Reference: Olmstead 1990 Contr Univ Michigan Herb 17:223--265
Index of California Plant Names (ICPN; linked via the Jepson Online Interchange)
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Botanical illustration including Scutellaria lateriflora

botanical illustration including Scutellaria lateriflora

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Citation for this treatment: Richard G. Olmstead 2012, Scutellaria lateriflora, in Jepson Flora Project (eds.) Jepson eFlora, https://ucjeps.berkeley.edu/eflora/eflora_display.php?tid=43900, accessed on April 18, 2024.

Citation for the whole project: Jepson Flora Project (eds.) 2024, Jepson eFlora, https://ucjeps.berkeley.edu/eflora/, accessed on April 18, 2024.

Scutellaria lateriflora
click for enlargement
©2016 Keir Morse
Scutellaria lateriflora
click for enlargement
©2016 Keir Morse
Scutellaria lateriflora
click for enlargement
©2016 Keir Morse
Scutellaria lateriflora
click for enlargement
©2016 Keir Morse
Scutellaria lateriflora
click for enlargement
©2016 Keir Morse

More photos of Scutellaria lateriflora
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Geographic subdivisions for Scutellaria lateriflora:
Deltaic GV, SNE (Saline Valley)
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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.
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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.
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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).