A N F Keys
1 Leaves simple, blades deeply palmately lobed and palmately veined; monoecious; inflorescences solitary, terminal, and drooping on spring shoots, with both staminate and bisexual flowers; petals present; stamens 7−9; fruitlet with wing 9−12 mm wide, seed body with long, stiff hairs .. Acer macrophyllum [pics]
1' Leaves pinnately compound with 3(5) leaflets, blades of leaflets coarsely toothed to shallowly lobed and ± pinnately veined; dioecious; inflorescences in lateral, pendent clusters emerging either before or with spring leaves; petals absent; stamens generally 4; fruitlet with wing 6−8 mm wide, seed body lacking stiff hairs .. Acer negundo [pics]
The text of the above keys used with permission from
A Naturalist's Flora of the Santa Monica Mountains and Simi Hills, California
© Copyright
Barry A. Prigge and Arthur C. Gibson
2013