Page authors: Don Knoke, David Giblin
Symphytum officinale
common comfrey
WTU specimens
Other herbaria

Distribution: Distributed west of the Cascades in Washington; widely distributed throughout North America except in extreme north and south states/provinces.

Habitat: Escaped from cultivation, often found in disturbed areas.

Flowers: May-August

Origin: Introduced from Europe

Conservation Status: Not of concern

Description:
General:

Coarse, stiff-hairy perennial from a taproot, the several erect stems 3-12 dm. tall, winged from the leaf bases.

Leaves:

Basal leaves large, petiolate, the blade ovate or lance-ovate, 15-30 cm. long and 7-12 cm. wide; cauline leaves ample, gradually reduced upward and becoming sessile.

Flowers:

Inflorescence of several small, naked clusters at the branch tips; calyx 5-7 mm. long, cleft to below the middle into 5 lobes; corolla ochroleucous or dull blue, 1.5 cm. long, bell-shaped, the throat much longer than the 5 lobes; the 5 hairy appendages at the top of the corolla tube narrow and elongate; style exerted; nutlets attached at the base in a pit.

Fruits:

Nutlets 4, slightly wrinkled, keeled, 4 mm. long, brownish-black, with a basal attachment.

Accepted Name:
Symphytum officinale L.
Publication: Sp. Pl. 1: 136. 1753.

Synonyms & Misapplications:
(none provided)
Additional Resources:

PNW Herbaria: Specimen records of Symphytum officinale in the Consortium of Pacific Northwest Herbaria database.

WA Flora Checklist: Symphytum officinale checklist entry.

E-Flora BC: Symphytum officinale atlas page.

CalPhotos: Symphytum officinale photos.

USDA Plants: Symphytum officinale information.

21 photographs:
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