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Vascular Plants of California
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Trichostema lanatum
WOOLLY BLUE CURLS


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: TrichostemaView DescriptionDichotomous Key


Common Name: BLUE CURLS
Habit: Annual, shrub, strong-scented. Stem: hairy, generally glandular. Leaf: simple; blade linear to ovate, entire. Inflorescence: cyme (raceme), axillary. Flower: calyx lobes 5, equal or uppermost 1 narrower; corolla blue to lavender, tube straight or curved upward, occasionally sharply recurved near throat, included to much-exserted from calyx, lobes 5, lowest a generally reflexed lip; stamens 4, attached near throat, generally much-exserted, ascending between upper corolla lobes, generally arched. Fruit: nutlets 4, joined in basal +- 1/3, puberulent to hairy, irregularly ridged.
Etymology: (Greek: hair, stamen) Note: Annual species generally flowering late summer, fall.
eFlora Treatment Author: Harlan Lewis
Reference: Lewis 1945 Brittonia 5:276--303
Trichostema lanatum Benth.
NATIVE
Habit: Shrub < 15 dm. Stem: hairs short, appressed on proximal stem, occasionally woolly near inflorescence. Leaf: petiole indistinct or < 3 mm; blade 3.5--7.5 cm, linear, adaxially green, glabrous, abaxially gray-hairy, margin rolled under; smaller leaves generally clustered in axils. Inflorescence: hairs densely woolly, 2--3 mm, obscuring pedicel, fine, blue to pink or white. Flower: calyx lobes >= tube, +- equal; corolla tube 9--14 mm, +- straight, exserted, lower lip 7--12 mm; stamens 2.5--4 cm. Chromosomes: 2n=20.
Ecology: Coastal scrub, chaparral; Elevation: < 1250 m. Bioregional Distribution: SCoR, SCo, WTR, SnGb, PR; Distribution Outside California: Baja California. Flowering Time: Apr--Jul
Jepson eFlora Author: Harlan Lewis
Reference: Lewis 1945 Brittonia 5:276--303
Index of California Plant Names (ICPN; linked via the Jepson Online Interchange)

Previous taxon: Trichostema austromontanum subsp. compactum
Next taxon: Trichostema lanceolatum

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Botanical illustration including Trichostema lanatum

botanical illustration including Trichostema lanatum

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Citation for this treatment: Harlan Lewis 2012, Trichostema lanatum, in Jepson Flora Project (eds.) Jepson eFlora, https://ucjeps.berkeley.edu/eflora/eflora_display.php?tid=46990, accessed on April 16, 2024.

Citation for the whole project: Jepson Flora Project (eds.) 2024, Jepson eFlora, https://ucjeps.berkeley.edu/eflora/, accessed on April 16, 2024.

Trichostema lanatum
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©2002 Christopher L. Christie
Trichostema lanatum
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©2009 Thomas Stoughton
Trichostema lanatum
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©1996 Christopher L. Christie
Trichostema lanatum
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©2017 Steve Matson
Trichostema lanatum
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©2006 Steve Matson

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Geographic subdivisions for Trichostema lanatum:
SCoR, SCo, WTR, SnGb, PR
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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).