Small to medium, open lantern-shaped, bright yellow flowers (large for a tangutica type). Beige anthers on red-brown filaments. Flowers are followed by very large seed heads. Discovered by Bill Mackenzie at the Waterperry School of Horticulture in 1968. The variety has received the Royal Horticultural Society's Award of Merit in 1976 and of Garden Merit in 1993.

Bill MacKenzie was in charge of the Alpine and Herbaceous Department at the Royal Botanic Gardens, Edinburgh and later Curator of the Chelsea Physic Garden in London.

Group:	Tangutica group
Approximate height:	4.0 - 5.0 metres
Flowering period(s):	Jun Jul Aug Sep
Aspect:	Sun or semi-shade
USDA zones:	4 5 6 7 8 9
Pruning:	Hard prune (Group 3)
Raised by:	W G MacKenzie
Country of origin:	United Kingdom
Date raised:	rn1968
Parentage:	tibetana ssp vernayi var vernayi 'Orange Peel' x tangutica
Other name(s):	orientalis 'Bill MacKenzie'; tangutica 'Bill MacKenzie'
Further detail:  Flower diameter: 6-8cm Tepals: 4, pointed, recurving tips Click here for the text of an IClS article about this clematis Database entry: 439