Common name:
Trifid bur-marigold
Family:
Scientific name:
Bidens tripartita
Main flower color:
Range:
Ireland, Wales and the southern half of England
Height:
Up to 60 cm
Habitat:
Damp grassland and watery margins
Flowers:
Compact, globular, upwards-pointing flowerheads with many disc florets; initially yellow, maturing to orange and brown. The involucre is enclosed by broad, thin phyllaries, green to purplish, and subtended by a ring of up to eight leaf-like bracts. Occasionally a few bright yellow ray florets may be present
Fruit:
Flattened capsules, topped by two (usually) to four barbed bristles
Leaves:
Opposite, lanceolate, stalked, lined with large teeth. Lower stem leaves have a pair of narrow lobes at the base. Stems are hairless, usually purple
Season:
July to October
Rarity:
★★★★★
