tangledwing:

Oneseed bur cucumber or star-cucumber (Sicyos angulatus) is an annual vine in the gourd family, Cucurbitaceae, native to eastern North America. The plant forms mats or climbs using tendrils. The leaves are palmately veined and lobed, the flowers are green to yellowish green, and the fruits form clusters of very small pepos. Bumblebees and honey bees, as well as various flies, sphecid wasps and vespid wasps are attracted to the nectar produced by the flowers.