Yellowwood (Cladrastis kentukea)

Plantae>Magnoliophyta>Magnoliopsida>Fabales>Fabaceae>Cladrastis kentukea (Dumont de Courset) Rudd

Yellowwood (Cladrastis kentukea) flowers

This medium-sized tree is rare in its native range in North Carolina, where it is known from only two counties in the western Mountains. More commonly seen as an ornamental, it sometimes escapes from cultivation in the Piedmont.

Planted specimen, Chapel Hill, NC 5/10/06.

Yellowwood (Cladrastis kentukea) flowers

The fragrant flowers, produced in late April and early May, are spectacular, especially when the whole tree is in full bloom. Yellowwood trees take about 10 years to flower and do not bloom every year, but the wait is worth it!

Planted specimen, Chapel Hill, NC 5/10/06.

Yellowwood (Cladrastis kentukea) flowers

The large leaflets are alternately arranged. The base of the petiole completely encircles the bud, a feature that is shared with American Sycamore.

Planted specimen, Chapel Hill, NC 5/10/06.

Yellowwood (Cladrastis kentukea) flowers

Flower detail.

Planted specimen, Chapel Hill, NC 5/10/06.

Yellowwood (Cladrastis kentukea) fruit The fruits are long bean-like pods.

Formerly known as Cladrastis lutea.

Planted specimen, Alleghany Co., NC 7/2/06.

Yellowwood (Cladrastis kentukea) bark

Bark of a 15-year old tree. Yellowwood trees are frequently multi-trunked.

Planted specimen, Chapel Hill, NC 5/6/06.

Yellowwood (Cladrastis kentukea) bark

The bark of both young and mature trees is pale gray and smoothish.

Planted specimen, Alleghany Co., NC 7/2/06.

More information:
Bernheim Arboretum
USDA PLANTS database
U Connecticut

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Revised 2/7/07 cwcook@duke.edu

All photographs and text ©2007 by Will Cook unless otherwise indicated.