White flowers, VIII–X, in long spikes; mid-green foliage; height 26–30cm; spread 31–45cm. Makes an attractively shaped plant.
Named from pyramidalis = pyramid-shaped. ‘This is a later name for ‘Alba Pyramidalis’ [see D. F. Maxwell, Low road, 1927]. ‘Pyramidalis’ is being proposed for conservation under the ICNCP (1995, Art. 14). The proposal was accepted in November 2003.
