Thanks once again to James Gaither (aka J.G. in S.F.@Flickr) for today’s photographs of Lilium hansonii, photographed at the University of California Botanical Garden at Berkeley. Appreciated, as always.
Lilium hansonii was named for the 19th century Danish-born artist, Peter Hanson. In addition to his landscape artistry, Hanson was a cultivator of tulips and lilies, and was honoured with having this species named after him (a story about Hanson’s death (PDF), via the New York Times archives).
Different resources suggest different native ranges for Hanson’s lily or whorled martagon, but USDA GRIN has settled on Japan and Korea. China and far eastern Russia are sometimes also included in its native range, though it is often suggested that its presence in China is due to cultivation. Similarly, Japan is not always considered native (again, due to cultivation), suggesting instead that the species is solely native to Korea.
For the first century or so of its cultivation in European and North American gardens, all plants of Lilium hansonii were the same clone, as the species is self-sterile and only a single introduction was made. Only in recent decades have additional collections and selections been introduced to European / North American cultivation.
Additional photographs are available via the Pacific Bulb Society Wiki: martagon lilies, including Lilium hansonii.