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Vascular Plants of California
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Dipsacus fullonum

Higher Taxonomy
Family: DipsacaceaeView DescriptionDichotomous Key
Habit: Annual to perennial herb [(shrub)], armed or not. Stem: generally branched. Leaf: simple, generally in basal rosettes and cauline, generally opposite, +- fused around stem, entire, toothed, or pinnately lobed or dissected, petioled or not; stipules 0. Inflorescence: head, terminal, on long peduncle, many-flowered, dense, +- spheric or cylindric, subtended by involucre; each flower generally +- enclosed by involucel of 1--2 generally fused bractlets, this generally expanded above or in fruit, generally subtended by 1 receptacle bract. Flower: bisexual, +- bilateral, especially outermost; calyx limb cup-shaped or divided into 4--5(10) linear or bristle-like segments; corolla +- funnel-shaped, lobes 4--5, < tube, generally unequal; stamens generally 4, attached to corolla tube, alternate lobes; ovary inferior, 1-chambered, style +- exserted from corolla, stigma generally 2-lobed. Fruit: achene, enclosed by sometimes enlarged involucel, generally topped by persistent calyx.
Genera In Family: 10--11 genera, 270--350 species: Europe to eastern Asia, central and southern Africa; several cultivated for ornament.
eFlora Treatment Author: Charles D. Bell & Elizabeth McClintock
Scientific Editor: Thomas J. Rosatti.
Genus: DipsacusView DescriptionDichotomous Key

Common Name: TEASEL
Habit: Biennial, armed with prickles or spines +- throughout. Stem: erect, generally < 2 m, stout, few-branched, rough-hairy. Leaf: generally < 5 dm, entire or toothed. Inflorescence: generally +- cylindric; involucre bracts unequal, linear, receptacle bract ending in a spine. Flower: calyx limb cup-shaped, persistent; corolla generally lavender (white), tube long, lobes unequal; stamens 4. Fruit: 4-angled, hairy.
Species In Genus: +- 15 species: Europe, western Asia, Africa. Etymology: (Greek: thirst, from leaf bases that in some species hold water)
Unabridged Reference: Ferguson & Brizicky 1965 J Arnold Arbor 46:362--365
Dipsacus fullonum L.
Leaf: pairs generally narrowly fused around stem. Inflorescence: 5--10 cm, ovoid-cylindric. Fruit: 6--8 mm. Chromosomes: 2n=16,18.
Ecology: Roadsides, pastures, fields, sometimes moist sites; Elevation: < 1700 m. Bioregional Distribution: NCo, KR, NCoRO, c&s SNF, CCo, SnFrB; Distribution Outside California: native to Europe. Flowering Time: Apr--Aug
Synonyms: Dipsacus sylvestris Huds.
Jepson eFlora Author: Charles D. Bell & Elizabeth McClintock
Index of California Plant Names (ICPN; linked via the Jepson Online Interchange)
Weed listed by Cal-IPC

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Botanical illustration including Dipsacus fullonum

botanical illustration including Dipsacus fullonum


Citation for this treatment: Charles D. Bell & Elizabeth McClintock 2012, Dipsacus fullonum, in Jepson Flora Project (eds.) Jepson eFlora,, accessed on August 14, 2022.

Citation for the whole project: Jepson Flora Project (eds.) 2022, Jepson eFlora,, accessed on August 14, 2022.

Dipsacus fullonum
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© 2009 California Academy of Sciences
Dipsacus fullonum
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© 2016 Keir Morse
Dipsacus fullonum
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© 2009 Barry Rice
Dipsacus fullonum
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© 2009 Barry Rice
Dipsacus fullonum
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© 2018 California Academy of Sciences
Dipsacus fullonum
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© 2019 Neal Kramer

More photos of Dipsacus fullonum in CalPhotos

Geographic subdivisions for Dipsacus fullonum:
NCo, KR, NCoRO, c&s SNF, CCo, SnFrB
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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).