poplar /popˈlər/

1. A genus (Populus) of rapidly growing trees of the willow family, including aspen, white poplar, black poplar (with its variety Lombardy poplar), cottonwood, etc; widespread in northern temperate regions
2. The tulip tree, tulip poplar (US)

• come under the hammer
• come under the microscope
• come undone
• come unfastened
• come unglued
• come ungummed
• come unstuck
• come up
• come up against
• come up in the world
• come upon
• comeuppance
• comeuppances
• come up smelling of roses
• come up to
• come up to scratch
• come up trumps
• come up with
• come what may
• comfier
• comfiest
• comfit
• comfits
• comfiture
• comfitures