These guys also have it..
http://www.klynnurseries.com/ "Macaclurara pomifera 'Whiteshield' Whiteshield Osage Orange
Height: 25-40' Spread: 20-40' Zone: 4
After trying all available cultivars of Maclura we have found that Whiteshield has the best attributes with its glossy foliage, lack of thorns and being a male clone – no fruit. It is a tough, durable, pest free and highly deer resistant native tree that adapts to the poorest of soils dry or wet. Useful as hedgerows or kept tightly clipped as a formal hedge or as an urban tree.
TREE FORM
11⁄2" No. 20 Cont. .........................................................................
13⁄4" No. 20 Cont. .........................................................................
2" Cont.....................................................................................
13⁄4" B&B......................................................................................
2" B&B......................................................................................
21⁄2" B&B......................................................................................
HEDGE FORM
36" No. 5 Cont. ...........................................................................
4' No. 5 Cont. (June).................................................................."