bidens - seed

aster asteraceae beautify beggartick beggarticks being bidens biology black blackjack bloom botanic botany bur butterfly cobblers common corolla culture detail environment family farmers flora floral floriferous flowering friend green hairy jack leaf leaves living marigold natural nature needle needleandthread needles organism peg perianth photosynthetic pitchforks plant plantae plantes planto reproduction reproductive seed sheets shepherds shining spanish species sporangia stalk stick stickseed stickybeak structure sunflower tickseed tights vegetable vegetation white