Gossard 2005. 46″ tall scapes. 7.5″ bloom, dark purple/wine color with yellow center and green throat. A back-of-the-border Unusual Form Spider. Dormant. Tetraploid. Mid-season bloomer.  The hybridizer’s website has an image of this fine daylily.  https://heavenlygardens.com/image-viewer.htm?Heavenly-Thunderbird and you can order from his website too.