Shoe flower (Hibiscus rosa-sinensis)
Commonly known as the shoe flower, is widely frown as an ornamental plant throughout the tropic and sub tropics, Hibiscus rosa-sinensis (shore flower) is an non endemic species to Sri Lanka the flowers are large and generally red in color in the original varieties, and firm but generally lack and any scent, however numerous verities and hybrids are known with to have many colors ranging from white, yellow, orange, scarlet and shades of pink with both single and double sets of petals.
Frangipani (plumeria rubra)
Commonly known as Araliya Plumeria rubra, (frangipani or Araliya) is native to Central America, Mexico, the Caribbean and South America and as far as south Brazil. Plumeria flowers are most fragrant at night order to lure sphinx moth to pollinate them, the moths inadvertently pollinate them by transferring pollen from flower to flower in fruitless search for nectar.
Binara (Exacum trinervium)
Binara (Exacum trinervium) is a slender herbaceous plant endemic to Sri Lanka. This plant grows to about 1m at an altitude up to 2000m. genus exccum (binara) has five species and it has four sided stem, and the colors vary from white to dark blue or purple. Flowers of binara (exacum) are often offered for worship in Buddhist temples and are also used in traditional medicine.
Sunflower (Helianthus annuus)
Sunflower (Helianthus annuus) is a species of annual flowering plant native to the Americas. The common name “Sunflower” applies both to the annual species and the genus Helianthus to which it belongs. It possesses a large inflorescence (flowering head). The sunflower is named after its huge, fiery blooms, whose shape and image is often used to depict the sun. It has a rough, hairy stem, broad, coarsely toothed, rough leaves and circular heads of flowers. The heads consists of may individual flowers which mature into seeds, often in the hundreds, on a receptacle base. From the Americas, sunflower seeds were brought to Europe in the 16th century, where along with sunflower oil, they became a widespread cooking ingredient. Leaves of the sunflower can be used as cattle feed, while the stems contain a fiber which may be used in paper production.