Aparaajita Goddess Durga
Arka flower Milkweed flower used in all prayers
Ashok Associated with Sita
Atasi or flax Sri Krihnas complexion
Bandhook or Midday flower Sun God
Banyan flower Lord Siva prayers
Bilva flower Lord Siva prayers
Blue butterfly pea flower Goddess Durga
Chameli flowers offered to Lord Hanuman
Champaka Sri Krishna, Lord Kamadeva, Goddess Lalitambika
Champaka (yellow) Goddess Saraswati
Dhatura flowers Lord Shiva worship
Erukkan flower used in all prayers
Fragrant Screw Pine Lakshmi puja
Hibiscus Goddess Durga and Kali
Indian coral red: -Used in the worship of Visnu and Siva Japa
kusum Sun God, Surya worship
Jasmine Used in all Deity worship and Durga Puja
Kadamba Associated with Lord Krishna and Goddess Durga
Kovidar or purple orchid Symbol in Bharatas flag Krishna
Kamal flowers offered to Sri Krishna
Kumud or white water lily divine flower
Kund or Star jasmine known for whitensssLotus Goddesses, especially Lakshmi
Madhavi Lata Associated with Vrindavan
Malati Well known for fragrance
Marigold flowers Lord Ganesha worship
Mandarai or Purple orchids Lord Shiva
Milkweed flower Lord Ganesha
Mogra flowers Lord Vishnu prayers
Mullai flower Lord Dakshinamurthy
Nandhyavattai Lord Krishna worship
Neel Kamal Goddess Durga worship
Parijat Brought to earth by Lord Krishna
Patal or paral adorns the hair of Goddesses
Pomegranate flowers Lord Ganesha
Punnag Lord Vishnu worship
Tajnigandha flowers offered to Lord Shiva
Tulsi flowers Vishnu and Krishna worship
Red coloured flowers Lord Ganesha
Red Jasmine flowers Goddess Lakshmi prayers
Sanku Pushpam or Conch flower Lord Ganesha
Sev arali Lord Subramaniya worship
Tamal or Himalayan Garcina Lord Rama, Baby Krishna
Thazhampoo or ketaki Cursed by Lord Shiva, not used in worship but offered to Goddess Lakshmi.
Thumba poo avoided in Lakshmi puja
Vakul or Maulasari Sri Krishna
White Lotus Goddess Saraswati
Yuthika or jasmine Sri Krishna
Source:mahesh
Arka flower Milkweed flower used in all prayers
Ashok Associated with Sita
Atasi or flax Sri Krihnas complexion
Bandhook or Midday flower Sun God
Banyan flower Lord Siva prayers
Bilva flower Lord Siva prayers
Blue butterfly pea flower Goddess Durga
Chameli flowers offered to Lord Hanuman
Champaka Sri Krishna, Lord Kamadeva, Goddess Lalitambika
Champaka (yellow) Goddess Saraswati
Dhatura flowers Lord Shiva worship
Erukkan flower used in all prayers
Fragrant Screw Pine Lakshmi puja
Hibiscus Goddess Durga and Kali
Indian coral red: -Used in the worship of Visnu and Siva Japa
kusum Sun God, Surya worship
Jasmine Used in all Deity worship and Durga Puja
Kadamba Associated with Lord Krishna and Goddess Durga
Kovidar or purple orchid Symbol in Bharatas flag Krishna
Kamal flowers offered to Sri Krishna
Kumud or white water lily divine flower
Kund or Star jasmine known for whitensssLotus Goddesses, especially Lakshmi
Madhavi Lata Associated with Vrindavan
Malati Well known for fragrance
Marigold flowers Lord Ganesha worship
Mandarai or Purple orchids Lord Shiva
Milkweed flower Lord Ganesha
Mogra flowers Lord Vishnu prayers
Mullai flower Lord Dakshinamurthy
Nandhyavattai Lord Krishna worship
Neel Kamal Goddess Durga worship
Parijat Brought to earth by Lord Krishna
Patal or paral adorns the hair of Goddesses
Pomegranate flowers Lord Ganesha
Punnag Lord Vishnu worship
Tajnigandha flowers offered to Lord Shiva
Tulsi flowers Vishnu and Krishna worship
Red coloured flowers Lord Ganesha
Red Jasmine flowers Goddess Lakshmi prayers
Sanku Pushpam or Conch flower Lord Ganesha
Sev arali Lord Subramaniya worship
Tamal or Himalayan Garcina Lord Rama, Baby Krishna
Thazhampoo or ketaki Cursed by Lord Shiva, not used in worship but offered to Goddess Lakshmi.
Thumba poo avoided in Lakshmi puja
Vakul or Maulasari Sri Krishna
White Lotus Goddess Saraswati
Yuthika or jasmine Sri Krishna
Source:mahesh