Jepson eFlora: Taxon page
Vascular Plants of California
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Dipsacus sativus

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.
Etymology: (Greek: thirst, from leaf bases that in some species hold water)
Unabridged Reference: Ferguson & Brizicky 1965 J Arnold Arbor 46:362--365
Dipsacus sativus (L.) Honck.
Leaf: pairs fused to widely fused around stem. Inflorescence: 5--10 cm, ovoid to ovoid-cylindric. Fruit: +- 6--8 mm. Chromosomes: 2n=16,18.
Ecology: Disturbed areas, fields, vacant lots, pastures; Elevation: < 800 m. Bioregional Distribution: NCo, NCoRO, CW, PR; Distribution Outside California: native to Europe. Flowering Time: May--Jul Note: Fruit head long used to raise nap on woolen cloth.
Jepson eFlora Author: Charles D. Bell & Elizabeth McClintock
Index of California Plant Names (ICPN; linked via the Jepson Online Interchange)
View the CDFA Pest Rating page for Dipsacus sativus
Weed listed by Cal-IPC

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Botanical illustration including Dipsacus sativus

botanical illustration including Dipsacus sativus

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Citation for this treatment: Charles D. Bell & Elizabeth McClintock 2012, Dipsacus sativus, in Jepson Flora Project (eds.) Jepson eFlora,, accessed on March 04, 2024.

Citation for the whole project: Jepson Flora Project (eds.) 2024, Jepson eFlora,, accessed on March 04, 2024.

Dipsacus sativus
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©2019 Neal Kramer
Dipsacus sativus
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©2019 Neal Kramer
Dipsacus sativus
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©2019 Neal Kramer
Dipsacus sativus
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©2023 Neal Kramer
Dipsacus sativus
click for enlargement
©2019 Neal Kramer

More photos of Dipsacus sativus
in CalPhotos

Geographic subdivisions for Dipsacus sativus:
1. You can change the display of the base map layer control box in the upper right-hand corner.
2. County and Jepson Region polygons can be turned off and on using the check boxes.
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).