Howell’s triteleia (Triteleia howellii) COSEWIC assessment and status report: chapter 4

Distribution

Global range

Triteleia howellii ranges from southwestern British Columbia, south through Washington and Oregon to northern California. (Keator 1993; Barkworth 1977a).

Figure 2. Distribution of Triteleia howellii in North America.

Figure 2.  Distribution of Triteleia howellii in North America.

Canadian range

In Canada, T. howellii is known from only southeastern Vancouver Island in southwestern British Columbia (Figure 3; Pojar 2001; Douglas et al. 2002a, b).

Figure 3. Distribution of Triteleia howellii in British Columbia (○-extirpated sites, ●-recently confirmed sites).

Figure 3.  Distribution of Triteleia howellii in British Columbia(○-extirpated sites, ●-recently confirmed sites).

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