CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM

We hereby consent to the incorporation by reference in this Registration
Statement on Form N-1A of our reports dated February 22, 2006, relating to the
financial statements and financial highlights which appear in the December 31,
2005 Annual Reports to the Shareholders of Columbia Acorn Trust, which are also
incorporated by reference into the Registration Statement. We also consent to
the references to us under the captions "Financial Highlights" and "Independent
Registered Public Accounting Firm" in such Registration Statement.

/s/ PricewaterhouseCoopers LLP

Chicago, Illinois
April 27, 2006