The fruit of "Trollius laxus" are dry with each follicle containing three to six seeds on average, and are formed in aggregate on the stems. The flowers of "T. laxus" range from white to yellow in color with nectar glands at the base, and can grow up to five centimeters in diameter. Both flowering and fruit level are positively correlated with light intensity, possibly due to pollinators being able to travel longer distances after leaving a warmer flower than a colder one.