Yellow crookneck squash
 Yellow crookneck squash is one of the many cultivars of Cucurbita pepo the species that also includes some pumpkins and most other summer squashes. The plants are bushy and do not spread like the plants of winter squash and pumpkin. It is most often used as a summer squash and is characterized by its bumpy yellow skin and sweet yellow flesh as well as its distinctive curved stem-end or crooked neck.