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Leucanthemum vulgare

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Raimo Ketolainen

Premium (World), HELSINKI

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Leucanthemum vulgare

L. vulgare is a perennial herb that grows to a height of 80 centimetres (31 inches)[3] and has a creeping underground rhizome. The lower parts of the stem are hairy, sometimes densely hairy but more or less glabrous in the lower parts. The largest leaves are at the base of the plant and are 4–15 cm (1+1?2–6 in) long, about 5 cm (2 in) wide and have a petiole. These leaves have up to 15 teeth, or lobes or both on the edges. The leaves decrease in size up the stem, the upper leaves up to 7.5 cm (3 in) long, lack a petiole and are deeply toothed.[2][4][5][6][7]

The plant bears up to three "flowers" like those of a typical daisy. Each is a "head" or capitulum 2–7.5 cm (3?4–3 in) wide.[3] Each head has between fifteen and forty white "petals" (ray florets) 1–2 centimetres (3?8–3?4 in) long surrounding the yellow disc florets. Below the head is an involucre of glabrous green bracts 7–10 millimetres (1?4–3?8 inch) long with brownish edges. Flowering occurs from May to October.[3] The seed-like achenes are 1–3 mm (1?16–1?8 in) long and have ten "ribs" along their edges but lack a pappus.[2][4][5]

Ox-eye daisy is similar to shasta daisy (Leucanthemum × superbum) which has larger flower heads (5–12 cm or 2–4+3?4 in wide) and to stinking chamomile (Anthemis cotula) which has smaller heads (1.5–3 cm or 5?8–1+1?8 in wide).[4] L. maximum is also similar, usually with rays 2–3 cm (3?4–1+1?8 in) in length.