Flower Name - West Indian Lantana,

Scientific Name: Lantana camara,

    According to Wikipedia : - Lantana camara (common lantana) is a species of flowering plant within the verbena family (Verbenaceae), native to the American tropics.[5][6] It is a very adaptable species, which can inhabit a wide variety of ecosystems; once it has been introduced into a habitat it spreads rapidly; between 45ºN and 45ºS and more than 1,400 metres (4,600 feet) in altitude.

    you can get this flower all over West Bengal, rural or urban cities.

Youtube Link: Click Here

Description:

    Common lantana is an annual or perennial, small, broadleaf evergreen shrub in the Verbenaceae (verbena) family that has woody stems but a sprawling habit. It is 1 to 6 feet high and 3 to 5 feet wide. It is native to the West Indies and Mexico to Tropical America. 

    

    The showy flowers – attractive to butterflies, hummingbirds and other pollinators – appear from midsummer until the first frost and come in a wide range of colors.

    Common lantana is often used as a houseplant, in hanging baskets, or in pollinator and flower gardens as a cultivated woody shrub or groundcover. This plant does grow quickly and aggressively so plan its location accordingly.

    

Credit: Wikipedia

There are five major flower colour varieties in Australia:

• Pink – Bud: pink; Middle ring: yellow opening with pale yellow petals; Outer ring: orange opening with pale or dark pink petals
• White – Bud: cream coloured; Middle ring: yellow opening with light yellow petals; Outer ring: orange or yellow opening with lilac petals
• Pink-edged Red – Bud: pink to reddish pink; Middle ring: orange opening with light yellow to orange petals; Outer ring: orange opening having two pink to red petals
• Red – Bud: blood red; Middle ring: yellow opening with yellow petals; Outer ring: red throat having red petals
• Orange – Bud: orange; Middle ring: yellow to orange opening, yellow petals; Outer ring: orange opening with orange petals