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Montana Field Guide

Montana Field Guides

Fuller's Teasel - Dipsacus fullonum
Other Names:  Dipsacus sylvestris

Exotic Species (not native to Montana)

Global Rank: GNR
State Rank: SNA

Agency Status
USFWS:
USFS:
BLM:
MNPS Threat Rank:
C-value: 0

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General Description
Taprooted biennial. Stems erect, branched, angled, 50–200 cm. Herbage glabrous except for hooked prickles on stem and midribs. Basal leaves oblanceolate, crenate, withering with flowering. Stem leaves lanceolate, 5–30 cm long, dentate below, becoming connate above. Heads ovoid, 2–8 cm high; involucral bracts linear, prickly, unequal, 1–15 cm long; bracts between flowers lanceolate, awned. Flowers: calyx silky, 4-angled; corolla 4-lobed, light blue above, white below, pubescent, 10–15 mm long; lobes up to 1 mm long; stigma entire; stamens exserted. Achene 4-angled cylindrical, 4–6 mm long (Lesica 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX).

Range Comments
Introduced throughout temperate N. America; native to Europe (Lesica 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX).

Habitat
Moist meadows, margins of wetlands, thickets; valleys (Lesica 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX).

References
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Citation for data on this website:
Fuller's Teasel — Dipsacus fullonum.  Montana Field Guide.  .  Retrieved on , from