''Iris'' ser. ''Tripetalae'' is a series of the genus ''
Iris'', in
''Iris'' subg. ''Limniris''.
The series was first classified by
Ludwig Diels in 'Die Natürlichen Pflanzenfamilien' (Edited by H. G. A. Engler and K. Prantl) in 1930.
It was further expanded by
George Hill Mathewson Lawrence
George Hill Mathewson Lawrence (June 19, 1910 - June 10, 1978) was an American botanist, writer and professor of botany who helped establish
the 'Liberty Hyde Bailey Hortorium', the Hunt Botanical Library and the ''Huntia'' journal. He was also an ...
in ''Gentes Herb'' (written in Dutch) in 1953.
[James Cullen, Sabina G. Knees, H. Suzanne Cubey (Editors) ]
The name of the series comes from the three petals of the flowers of the species in the series.
It has been theorised that the formation of the ice caps during the last ice age, led to the split of ''Iris tridentata'' from other forms in North America.
[British Iris Society (1997) ]
Most have small standards and violet-blue flowers,
[
Only, ''Iris setosa'' is in cultivation, in the UK,][ and in the US.][ They are often used in hybridising with species of ''Iris'' ser. ''Sibiricae'' or ''Iris'' ser. ''Californicae''.][
Includes;
*'']Iris hookeri
''Iris hookeri'', commonly called the beach head iris, is a species of ''Iris''. It is endemic to sea coasts and beaches in Maine, in the Northeastern United States and also eastern Canada.
It blooms in July.
It was first published by the Englis ...
'' Penny – Hooker's iris
*'' Iris setosa'' Pallas ex Link – beachhead iris
*''Iris tridentata
''Iris tridentata'' is a species in the genus '' Iris'', it is also in the subgenus '' Limniris'' and in the series '' Tripetalae''. It is a rhizomatous perennial, from the Southeastern United States. It has a cord-like rhizome, bright green le ...
'' Pursh – savanna iris
References
External links
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{{Taxonbar, from=Q18352113
Tripetalae