Tree Plaques In The Park​

Nature journal page of a California Buckeye (Aesculus California) by Caitlin Corley
Artist Caitlin Corley
Key Identifying Characteristics

Tree is bare in the late summer, spring brings lush foliage, followed by distinctive candles of white blooms. Fig shaped fruit contains the round seed that gives the tree its name.

Height / Size

13-39 feet tall and 40 feet wide.

Leaves or Needles

5 part compound leaves in the shape of a hand. Leaf edges are finely-toothed and emerge in early February.

Bark / Trunk

Multi-trunked tree with pale gray bark.

Flower

Bloom period is May to July. Each aromatic flower stalk has multiple flowers with four pink or white petals and long stamens. 

Fruit / Seed / Cone

Resembling a buck’s eye, the large brown seeds are enclosed in leathery husks that separate to expose a seed up to 2 inches long.

Habitat

California coastal range and valleys.

Location / Range

Visitor’s Center, and Hazelnut and Old Trout Farm trails.

Lifespan

Between 250-280 years with a maximum of 300 years.

Native / Non-native

Native to California.

Fascinating / Fun Facts

Also known as the California Horse-Chestnut. The large seed contains gluoside aesculin that is a toxic compound.

Sources:

Calscape
PlantID.net for San Pedro Valley CP (NRDB.org)
Wikipedia
UC Master Gardener Program of Sonoma County
Trees and Shrubs of California
by John D. Stuart and John O. Sawyer
Field Guide to North American Trees By Thomas S. Elias