Native Riparian Trees of Eastern Marin

Acer macrophyllum     flowers: April-May               back Big-leaf maple   Deciduous leaves to 12" with 5 lobes, turning yellow in fall. Twigs stout. Bark grey-brown, with shallow furrows. Seeds winged. Ht: to 80ft.

Acer negundo     flowers: March-April                  back Box-elder Deciduous pale yellow-green leaves to 8" with 3 lobed leaflets. Bark dark. Flowers of male tree hang in pink tassels; female produces winged seeds. Ht: to 40ft.

Salix lucinda spp. lasiandra    flowers: March-April              back Yellow willow  Deciduous leaves to 5", long-pointed, finely toothed, with pairs of tiny glands near base. Twigs yellow. Bark dark and furrowed. Ht:to 50ft.

Salix lasiolepis    flowers: February-March              back Arroyo willow  Deciduous leaves to 4", shiny above, pale below, widest beyond the middle. Bark of smaller trunks smooth- barked. Flowers appear before leaves. Ht:to 35ft.

Alnus rhombifolia    flowers: January-February                  back White alder   Deciduous leaves to 3 1/2" with distinct veins, small teeth. Bark smooth and grey, aging dark and fractured. Red alder has minutely curled-under leaf edges. Ht: to 60ft.

Fraxinus latifolia    flowers: March-May           back Oregon Ash   Deciduous leaves to 13", with 5-7 leaflets. Dark opposing leafbuds contrast with grey mature twigs. Bark dark and fractured. Female trees bear winged seeds. Ht: to 50ft.

 

Note: leaf length includes the stalk; 'leaflets' are subdivisions of a leaf, which, if deciduous, falls as a whole.

PRODUCED BY FRIENDS OF CORTE MADERA CREEK WATERSHED   
Photos Copyright Charles Kennard 2000

 

For more information about native plants, visit Canative.com.

Marin County Stormwater Pollution Prevention Program: P. O. Box 4186 San Rafael, CA 94913-4186 Phone (415) 499-6528, Fax (415) 499-7221, e-mail: mcstoppp@co.marin.ca.us