Rosy owl-clover (Orthocarpus bracteosus) COSEWIC assessment and status report: chapter 1

Assessment Summary – May 2004

Common name : Rosy owl-clover

Scientific name : Orthocarpus bracteosus

Status : Endangered

Reason for designation : An annual herb of vernal pools and damp depressions present at a single remaining location where population size fluctuates widely with low numbers that may be fewer than 100 plants a year. Expansion is limited due to lack of suitable habitats and apparent low dispersal abilities. The population is at risk from spread of nearby invasive exotic plants, from trampling due to hiker traffic and local maintenance activities related to the nearby communications site and consequences of possible oil spills occurring in the busy shipping lanes surrounding the island site.

Occurrence : British Columbia

Status history : Designated Endangered in May 2004. Assessment based on a new status report.