The gypsum flora of Nova Scotia refers to a small group of

plant Plants are predominantly photosynthetic eukaryotes of the kingdom Plantae. Historically, the plant kingdom encompassed all living things that were not animals, and included algae and fungi; however, all current definitions of Plantae excl ...

s that are restricted to naturally-occurring outcrops of

gypsum Gypsum is a soft sulfate mineral composed of calcium sulfate dihydrate, with the chemical formula . It is widely mined and is used as a fertilizer and as the main constituent in many forms of plaster, blackboard or sidewalk chalk, and drywa ...

Nova Scotia Nova Scotia ( ; ; ) is one of the thirteen provinces and territories of Canada. It is one of the three Maritime provinces and one of the four Atlantic provinces. Nova Scotia is Latin for "New Scotland". Most of the population are native Eng ...

is unique in northeastern

North America North America is a continent in the Northern Hemisphere and almost entirely within the Western Hemisphere. It is bordered to the north by the Arctic Ocean, to the east by the Atlantic Ocean, to the southeast by South America and th ...

for the extent of sites having gypsum

bedrock In geology, bedrock is solid rock that lies under loose material ( regolith) within the crust of Earth or another terrestrial planet. Definition Bedrock is the solid rock that underlies looser surface material. An exposed portion of be ...

at or near the

soil Soil, also commonly referred to as earth or dirt, is a mixture of organic matter, minerals, gases, liquids, and organisms that together support life. Some scientific definitions distinguish ''dirt'' from ''soil'' by restricting the former ...

surface. The distinctive set of plants associated with these gypsum exposures includes '' Packera paupercula'' (Balsam groundsel), '' Carex eburnea'' (Ebony sedge), '' Erigeron hyssopifolius'' (Hyssop-leaved fleabane), '' Cypripedium parviflorum'' (Small yellow lady’s-slipper).

Karst Karst is a topography formed from the dissolution of soluble rocks such as limestone, Dolomite (rock), dolomite, and gypsum. It is characterized by underground drainage systems with sinkholes and caves. It has also been documented for more weathe ...

landscapes have also formed. Some of these species appear to be associated with sunny clearings created by natural erosion from gypsum cliffs, which provides a distinctive sunny and

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 ad ...

habitat within landscapes that are otherwise forested.

Distribution and status

Some of the more important gypsum sites occur in the Windsor area of western Hants County along Five Mile River, around the

Baddeck Baddeck () is a village in northeastern Nova Scotia, Canada. It is situated in the centre of Cape Breton, approximately 6 km east of where the Baddeck River empties into Bras d'Or Lake. Local governance is provided by the rural municipali ...

area in southern Victoria County, the

Ninevah Nineveh (; akk, ; Biblical Hebrew: '; ar, نَيْنَوَىٰ '; syr, ܢܝܼܢܘܹܐ, Nīnwē) was an ancient Assyrian city of Upper Mesopotamia, located in the modern-day city of Mosul in northern Iraq. It is located on the eastern ban ...

area in Inverness County, and near

Antigonish , settlement_type = Town , image_skyline = File:St Ninian's Cathedral Antigonish Spring.jpg , image_caption = St. Ninian's Cathedral , image_flag = Flag of Antigonish.p ...

in Antigonish County. Many of these sites are threatened by gypsum

mining Mining is the extraction of valuable minerals or other geological materials from the Earth, usually from an ore body, lode, vein, seam, reef, or placer deposit. The exploitation of these deposits for raw material is based on the econom ...

and

logging Logging is the process of cutting, processing, and moving trees to a location for transport. It may include skidding, on-site processing, and loading of trees or logs onto trucks or skeleton cars. Logging is the beginning of a supply cha ...

Global significance

Gypsum floras are well-documented in other parts of the world, but are sufficiently rare in eastern North America that they are not mapped in a recent world-wide review on the topic.

References

{{Reflist, colwidth=30em Flora of Nova Scotia

Distribution and status

Global significance

See also

References