British elecampane

July 31, 2015

Inula britannica L.

Life cycle

Aggressive, invasive perennial.


Alternate, lance-shaped leaves initially develop from a basal rosette. Leaves have pointed tips, arrowhead- to earlobe-shaped bases and finely toothed margins. Leaf bases are stalkless to clasping the stem. The lower leaf surface is densely covered with coarse, white hairs; the upper surface is only slightly hairy.

British elecampane rosette
British elecampane rosette.


Erect stems with coarse, white hairs arise from a basal rosette to flower, up to 30 inches tall.

Inula stem
British elecampane stem.

Flowers and fruit

Numerous yellow, 0.75- to 1.5-inch-wide flower heads form on a single plant, each head looking like a small sunflower. The area just below each flower head is encircled by several small, green bracts. The seed is enclosed in a single-seeded, small, light brown, wind-disseminated fruit.

Inula flower Inula plant
British elecampane flower (left). British elecampane flowering plant (right).


Seeds and creeping roots.

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Tags: integrated pest management

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