Aesculus glabra var. arguta
ES-ku-lus GLAH-bra ar-GU-ta
Native to (or naturalized in) Oregon:
- Broadleaf deciduous shrub/tree, 6-20 ft (2-6 m) tall, dense, drooping branches. Leaves opposite, palmately compound, 7-9(11) lanceolate leaflets, each to 12 cm long and 2.5-4.5 cm wide, tapering tip, wedge-shaped base, sharply and doubly serrate, medium green, glabrous at maturity; petioles as long as leaflets. Flowers cream to yellow-green, 2.5 cm, in erect, terminal clusters, bloom in spring. Fruit light brown, 2.5 cm long, rounded, with a prickly or warty covering, 1-3 brown seeds.
- Sun to light shade. Best on well-drained, slightly acid soil, tolerates some drought. All parts of the plant considered poisonous.
- Hardy to USDA Zone 5 Native range from southeastern Nebraska, eastern Kansas, western Missouri, Oklahoma and Texas.
- glabra: smooth, a reference to the leaves. arguta: sharp-toothed, a reference to the margin of the leaflets
- Hesston, Kansas: Dyck Arboretum of the Plains