[The Pea Family East of the Cascade Mountains of Oregon and Washington]

American Licorice, Licorice Root, Wild Licorice

Glycyrrhiza lepidota

Synonyms: Glycyrrhiza glutinosa, Glycyrrhiza lepidota var. glutinosa, Glycyrrhiza lepidota var. lepidota

American Licorice, Licorice Root, Wild Licorice: Glycyrrhiza lepidota (Synonyms: Glycyrrhiza glutinosa, Glycyrrhiza lepidota var. glutinosa, Glycyrrhiza lepidota var. lepidota)

Close-up of the pinnately compound leaves and spiny pods of american licorice as seen along horse trails along the Yakima River at Horn Rapids Park, Benton County, Washington............October 2, 2012.
Characteristics:

Licorice root is a small, aromatic shrub with a cluster of several stout stems arising 30-150 cm high from many deep, woody, horizontal rhizomes. The stems are typically covered with tiny scales and raised glands. The leaves measure from 7-15 cm long and are pinnately compound (See photo below.) with 7-19 lanceolate to oblong leaflets, each ranging from 2-4 cm in length. The have acute tips and bases and are covered with glands.

The flower stems are shorter than the leaves. The numerous flowers are found in dense, short racemes of many flowers. The calyx measures 6-7 mm long and has 5 awl-shaped teeth. The yellowish-white corollas range from 10-15 mm long. The pods are 10-20 mm long with numerous, hooked-prickly spines measuring 4-5 mm long covering their surfaces (similar to a cocklebur (See photo below.).


Pinnately compound leaf of licorice root, Dalton Pt. boat ramp, Columbia River Gorge.........September 3, 2000.
Varieties:

var. glutinosa: Stalked glands may be found throughout the inflorescence and often on the petioles, and main stems. This variety is found east of the Cascade Mts. from British Columbia south to California and east to Yellowstone National Park.

var. lepidota: Stalked glands may be found on the calyx. This variety may be found from Montana east to Ontario, and south to California. It is uncommonly found in Idaho and Washington.


Habitat:

Licorice root may be found in waste areas or in low ground just above streams and rivers.


Range:

Licorice root may be found from British Columbia south to California and east to Ontario, Minnesota, Arkansas, New Mexico, Arizona, and Texas.


American Licorice, Licorice Root, Wild Licorice: Glycyrrhiza lepidota (Synonyms: Glycyrrhiza glutinosa, Glycyrrhiza lepidota var. glutinosa, Glycyrrhiza lepidota var. lepidota)


Paul Slichter