close-up macro view of the stem, leaves, and flower structure of sphenoclea zeylanica plants

agricultural agriculture asia background botany chickenspike closeup copy-space crop cultivation diet edible environment farm field foliage food fresh freshness garden gardening gooseweed green greenery grow growth harvest healthy herb herbicide leaf leaves macro natural nature nutrition organic outdoor plant plantation season sphenoclea sphenoclea-zeylanica texture tropical vegetable vegetables vegetarian wedgewort zeylanica