Book  (Jan 2000)  Page(s) 73.  
 
Early Windflower Herbaceous Peony. Saunders 1939. The result of a cross between Paeonia emodi and P. veitchii... small, nodding, single white flowers... Plant and flowers are nearly indistinguishable from 'Late Windflower', which blooms a week to ten days later...

Book  Page(s) Book 3, p. 50.  
 
Emodi x Veitchi ( ....sp Tibet)...
12591-604 Vt 6516 (Sp. Tibet) x Emodi
All these lumped together in 1938 & put in 8.7 28 plants. These later became the Early Windflower strain
12594 1937 Tall flesh white. Beautiful plant