Intro: Erect biennial/perennial of roadsides, pastures and other disturbed areas. Native of Europe, now found in most of North America.
Stems: Stems 1-several from base, ridged, some opposite branching, increasingly prickly upward.
Leaves: Leaves opposite, sessile, pairs joined at the base, lance-shaped, 4-16 in. long, with prominent midvein and prickles (especially beneath); basal leaves (dying in 2nd season) are wrinkly and scallop-edged.
Inforescence:
Flowers: Composite flowers (heads) solitary on long stalks at top of stem; heads cone-shaped, 1 1/4-3 1/2 in. long, consisting of lavender to white, tubular florets interspersed with spiny bracts. Long, narrow, prickly, green bracts at base of head curve upward and form a "cage" around the persistent head.
Fruits: Fruit an angular achene.
Comments: Dipsacus laciniatus, also of disturbed sites and native to Eurasia, is similar but leaves are deeply divided into narrow segments. D. sativus, similar and also exotic but not as widespread, has hooked rather than straight spiny bracts in the heads, and the narrow, leaf-like, green bracts underlying heads spread outward rather than curve upward.
Height: 1 1/2-6 1/2 ft.
plant sale text:
bloom table text:
description: Erect biennial/perennial of roadsides, pastures and other disturbed areas. Native of Europe, now found in most of North America.
stems: Stems 1-several from base, ridged, some opposite branching, increasingly prickly upward.
leaves: Leaves opposite, sessile, pairs joined at the base, lance-shaped, 4-16 in. long, with prominent midvein and prickles (especially beneath); basal leaves (dying in 2nd season) are wrinkly and scallop-edged.
inflorescence:
flowers: Composite flowers (heads) solitary on long stalks at top of stem; heads cone-shaped, 1 1/4-3 1/2 in. long, consisting of lavender to white, tubular florets interspersed with spiny bracts. Long, narrow, prickly, green bracts at base of head curve upward and form a "cage" around the persistent head.
fruits: Fruit an angular achene.
comments: Dipsacus laciniatus, also of disturbed sites and native to Eurasia, is similar but leaves are deeply divided into narrow segments. D. sativus, similar and also exotic but not as widespread, has hooked rather than straight spiny bracts in the heads, and the narrow, leaf-like, green bracts underlying heads spread outward rather than curve upward.
cultural notes:
germination code:
native range: Europe