The seeds, popularly known as keys or helicopter seeds, are a type of fruit known as a samara. The genus Fraxinus contains 45-65 species worldwide. Green and white ash trees are the two most ...

Ashes and elms both produce samaras, which are winged fruits with ... Walking White Ash Court, I counted 19 ash trees but didn’t attend the details to determine which trees were which ash!

Green ash trees will reach a height of about 60 feet ... Fruit: A single-winged, dry, flattened samara (winged seed capsule) with a slender, thin seed cavity, maturing in autumn and dispersing ...

Next, my colleagues and I hope to unravel the flight mechanics of the “rolling samaras” found on tulip poplar and ash trees.