cassia fistula, golden shower tree, ratchaphruek yellow color flowers in full bloom with rain drops after rainfall beautiful in

autumn background beautiful beauty biology bloom blooming blossom blossominga blurred botanic botanical botany bouquet branch bright cassia closeup color colorful decoration drops environment field fistula flora floral flowers foliage fresh freshness full garden gardening golden green group growing growth hanging landscape leaf light natural nature outdoor park petal plant rain rainfall season shower spring summer tree tropical view yellow