Dwarf hackberry (Celtis tenuifolia) COSEWIC assessment and status report: chapter 1

Assessment Summary – November 2003

Common name : Dwarf hackberry

Scientific name : Celtis tenuifolia

Status : Threatened

Reason for designation : A shrub of dry sandy or calcareous alvar woodland habitats found only at six disjunct and fragmented sites adjacent to the Great Lakes. Fewer than 1,000 plants have been documented. Threats include potential loss of habitat due to quarrying operations and sand pit expansion in eastern Ontario sites and significant losses in some years due to beetle infestations.

Occurrence : Ontario

Status history : Designated Special Concern in April 1985. Status re-examined and uplisted to Threatened in November 2003. Last assessment based on an update status report.