A new species Tulipa heweri related to T. praestans (Liliaceae)
Raamsdonk, L.W.D. van
Nordic Journal of Botany 18(1): 51-55
A new species of tulip originating from northern Afghanistan, T. heweri, is described (subgenus Tulipa, section Eichleres, series Multiflorae). The species is related to T. praestans and differs by having smaller and less densely-ciliate leaves, yellow or ochre flowers, yellow filaments, anthers and stigma, and a green ovary. The 2 species are allopatric, with both reciprocal crosses between T. heweri and T. praestans yielding a moderate seed set.