Cota tinctoria

Inflorescence.

Cota tinctoria, the golden marguerite, yellow chamomile, or oxeye chamomile, is a species of perennial flowering plant in the sunflower family. Other common names include dyer's chamomile, Boston daisy, and Paris daisy. In horticulture this plant is still widely referred to by its synonym Anthemis tinctoria.<ref>Template:Cite book</ref>

It is a short-lived plant often treated as biennial, native to Europe, the Mediterranean and Western Asia and naturalized in scattered locations in North America.<ref>Altervista Flora Italiana, Camomilla dei tintori, Färberkamille, Cota tinctoria (L.) J. Gay includes many photos plus European distribution map</ref><ref>Biota of North America Program 2014 county distribution map</ref> It has aromatic, bright green, feathery foliage. The serrate leaves are bi-pinnatifid (= finely divided) and downy beneath. It grows to a height of Template:Convert.<ref name=wilma/>

It has yellow daisy-like terminal flower heads on long thin angular stems, blooming in profusion during the summer.<ref name=wilma>Flora of North America, Golden marguerite, yellow chamomile, Cota tinctoria (Linnaeus) J. Gay ex Gussone, Fl. Sicul. Syn. 2: 867. 1845. </ref>

It has no culinary or commercial uses and only limited medicinal uses. However, it produces excellent yellow, buff and golden-orange dyes, used in the past for fabrics.<ref>Euro+Med PlantBase - the information resource for Euro-Mediterranean plant diversity</ref>

Cota tinctoria is grown in gardens for its bright attractive flowers and fine lacy foliage; there is a white-flowering form. Under the synonym Anthemis tinctoria, the cultivar 'E.C. Buxton' has gained the Royal Horticultural Society's Award of Garden Merit.<ref name = RHSPF>Template:Cite web</ref> The popular seed-raised cultivar 'Kelwayi' has 5 cm wide, yellow flowers on 65 cm plants.<ref>Template:Cite web</ref>

The species hybridizes with Tripleurospermum inodorum to form the hybrid × Tripleurocota sulfurea.<ref name=POWO_77081589-1>Template:Cite POWO</ref>

Subspecies

• Cota tinctoria subsp. australis (R.Fern.) Oberpr. & Greuter
• Cota tinctoria subsp. euxina (Boiss.) Oberpr. & Greuter
• Cota tinctoria subsp. fussii (Griseb. & Schenk) Oberpr. & Greuter
• Cota tinctoria subsp. gaudium-solis (Velen.) Oberpr. & Greuter
• Cota tinctoria subsp. parnassica (Boiss. & Heldr.) Oberpr. & Greuter
• Cota tinctoria subsp. sancti-johannis (Stoj. & al.) Oberpr. & Greuter
• Cota tinctoria subsp. virescens (Bornm.) Oberpr. & Greuter