''Sullivantia'', commonly called coolwort, is a genus of flowering plants in the saxifrage family. It is a small genus, comprising only 3-4 species of perennial herbs all native to the

United States The United States of America (U.S.A. or USA), commonly known as the United States (U.S. or US) or America, is a country primarily located in North America. It consists of 50 states, a federal district, five major unincorporated territorie ...

. ''Sullivantia'' is most notable for having disjunct distributions primarily restricted to along the

Pleistocene The Pleistocene ( , often referred to as the ''Ice age'') is the geological Epoch (geology), epoch that lasted from about 2,580,000 to 11,700 years ago, spanning the Earth's most recent period of repeated glaciations. Before a change was fina ...

glacial margin.''Sullivantia'' in Flora of North America
/ref> All species of ''Sullivantia'' are found on moist, often

calcareous Calcareous () is an adjective meaning "mostly or partly composed of calcium carbonate", in other words, containing lime or being chalky. The term is used in a wide variety of scientific disciplines. In zoology ''Calcareous'' is used as an adje ...

cliffs.

Species

* ''

Sullivantia hapemanii ''Sullivantia'', commonly called coolwort, is a genus of flowering plants in the saxifrage family. It is a small genus, comprising only 3-4 species of perennial herbs all native to the United States. ''Sullivantia'' is most notable for having di ...

'' * ''

Sullivantia oregana ''Sullivantia'', commonly called coolwort, is a genus of flowering plants in the saxifrage family. It is a small genus, comprising only 3-4 species of perennial herbs all native to the United States. ''Sullivantia'' is most notable for having di ...

'' * '' Sullivantia sullivantii''

References

Saxifragaceae Flora of the United States Saxifragaceae genera {{Saxifragaceae-stub