Tripleurospermum Sch.Bip.

Mayweed (en), Fausse-Matricaire (fr)

Genus

Angiosperms > Asterales > Asteraceae

Characteristics

Annual, biennial or perennial herbs, taprooted or rhizomatous. Lvs 1-3-pinnate or pinnatisect, alternate. Capitula in corymbs, or often solitary, terminal, pedunculate; involucral bracts in 2-5 rows, with membranous margins. Receptacle conic; scales 0. Outer florets ♀, usually ligulate, rarely tubular, usually white, rarely pale pink; inner florets ☿, tubular. Achenes all similar, triquetrous, oblong or obpyramidal; inner surface with 3 ribs; outer surface smooth, rugose, or tuberculate, sometimes ribbed, with (0)-2-(5) glands at apex; pappus usually a small toothed or lobed corona, sometimes 0.
More
Annual or perennial herbs, erect. Leaves commonly 3-pinnatisect. Capitula solitary or few, radiate (in Australia) or discoid; involucre multi-seriate, with bracts gradational in length; receptacle epaleate. Ray florets female, fertile. Disc florets bisexual; corolla 4-or 5-lobed. Achenes ± homomorphic, c. 4-angled, 3-ribbed, with prominent apical glands. Pappus present.
Life form
Growth form herb
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Sexuality hermaphrodite
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Root system tap-root
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Environment

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Hardiness (USDA) 4-9

Usage

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Cultivation

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