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Xerochrysum bracteatum, commonly known as the golden everlasting or strawflower, is a flowering plant in the family Asteraceae native to Australia. Described by Étienne Pierre Ventenat in 1803, it was known as Helichrysum bracteatum for many years before being transferred to a new genus Xerochrysum in 1990.
Turnera ulmifolia grows erect, with dark toothed leaves and small, yellow-orange flowers, and is often found as a weed growing on roadsides. These yellow flowers bloom around 6:00 a.m. and wilt around 11:30 a.m. Life span for flower is around six hours. These plants can survive on minimum water and grow on walls, cement blocks, and rocks.
Some species are familiar as ornamental plants cultivated for their large, colorful flowers. Most species produce yellow flowers; A. blanchetii bears pink flowers. [2] The genus name Allamanda honors the Swiss botanist and physician Frédéric-Louis Allamand (1736–1809). [3] It is the official flower of Kuching North City Hall. [4]
Tecoma stans is a semi-evergreen shrub or small tree, growing up to 10 m (30 ft) tall. [1] It features opposite odd-pinnate green leaves, with 3 to 13 serrate, 8- to 10-cm-long leaflets. The leaflets, glabrous on both sides, have a lanceolate blade 2–10 cm long and 1–4 cm wide, with a long acuminate apex and a wedge-shaped base.
Its yellow and bright flowers have antioxidant properties. [2] In Thailand it is the provincial flower of Nakhon Nayok, Sara Buri, Buri Ram, Suphan Buri and Uthai Thani Provinces. [3] Cochlospermum regium flower with praying mantis, in Laos
Cosmos sulphureus is a species of flowering plant in the sunflower family Asteraceae, also known as sulfur cosmos and yellow cosmos. It is native to Mexico , Central America , and northern South America , and naturalized in other parts of North and South America as well as in Europe, Asia, and Australia.
The plants are hardy herbaceous perennials with narrow tufted radical leaves and an elongated stem bearing a handsome spike of white or yellow flowers. Asphodelus albus and A. fistulosus have white flowers and grow from 45 to 60 centimetres ( 1 + 1 ⁄ 2 –2 ft) high; A. ramosus is a larger plant, the large white flowers of which have a ...
Rapeseed flowers are bright yellow and about 17 millimetres (3 ⁄ 4 in) across. [6] They are radial and consist of four petals in a typical cross-form, alternating with four sepals . They have indeterminate racemose flowering starting at the lowest bud and growing upward in the following days.