Suppression of Rice Cryptochrome 1b Decreases Both Melatonin and Expression of Brassinosteroid Biosynthetic Genes Resulting in Salt Tolerance Tall Iron Plant Stand These are Calotropis flowers most likely Calotropis gigantea, commonly called Crown Flower, Giant Milkweed, or Akanda. Hindu symbolism Calotropis is sacred to Shiva. The flowers are often offered to Lord Shiva Apple Tree Planting Guide Plant Me Green