Baikal sedge (Carex sabulosa) COSEWIC assessment and status report: chapter 6

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Distribution

• Global Range
• Canadian Range

Global Range

In North America, Carex sabulosa occurs in southwestern Yukon and central Alaska (Figure 3, Cody 2000, Alaska Natural Heritage Program 2002). It is then disjunct to central Asia, over 3000 km away (Hultén 1968, Cody 2000, Murray 2002).

Figure 3: Distribution of Carex sabulosa in North America

Canadian Range

In Canada, Carex sabulosa is known from four areas in the southwestern Yukon (Figure 4, Douglas et al.. 1981, 2004). Five dune complexes were thoroughly examined at three of these areas during 2003. The dune system at the Kaskawulsh/Dezadeash rivers is essentially continuous. There is a south and north dune system, 1.5 km apart, on opposite sides of the the Takhini River and there are two dune systems, 1.2 km apart, located near Carcross. The latter systems are located at Bennett Lake and along the Klondike Highway (Highway 2). A fourth location, represented by a collection taken at Christmas Bay, Kluane Lake in 1974, remains unconfirmed. The entire windward area at the latter location, covering an area of about 30 to 40 m wide and 2 km long, was searched in 2003 without positive results.

There are also a number of smaller dune systems in southern and western Yukon Territory. None of these systems are known to support Carex sabulosa.

Figure 4: Distribution of Carex sabulosa in Yukon Territory