Power of Attorney

Know all by these presents, that Luis F. Machuca,
(the "Reporting Person"), hereby constitutes and
appoints Ronald L. Farnsworth, Neal T. McLaughlin and
Andrew H. Ognall, as the Reporting Person's
attorneys-in-fact to:
(1) execute and file for and on behalf of the
Reporting Person, all reports of, and changes in,
beneficial ownership by the Reporting Person of
securities of Umpqua Holdings Corporation (the
"Company") as may be required by Section 16(a) of
the Securities Exchange Act of 1934 and the rules thereunder;
(2) do and perform all acts for and on behalf of the
Reporting Person which may be necessary or desirable
to complete and execute and file any such reports
with the United States Securities and Exchange
Commission and any stock exchange or similar authority; and
(3) take any other action of any nature whatsoever
in connection with the foregoing that, in the opinion
of such attorneys-in-fact, may be of benefit to and in
the best interest of, or legally required of, the
Reporting Person.
The Reporting Person hereby grants to such
attorneys-in-fact, each acting alone, full power and
authority to do and perform any and every act and thing
whatsoever requisite, necessary, or proper to be done
in the exercise of any of the rights and powers herein
granted, as fully to all intents and purposes as the
Reporting Person might or could do if personally present,
with full power of Substitution or revocation, hereby
ratifying and confirming all that such attorneys-in-fact,
or such attorneys-in-fact substitute or substitutes,
shall lawfully do or cause to be done by the virtue of
this Power of Attorney and the rights and powers herein
granted.  The Reporting Person acknowledges that the
foregoing attorneys-in-fact, in serving in such capacity
at the request of the Reporting Person, are not assuming,
nor is the Company assuming, any of the Reporting Persons
responsibilities to comply with Section 16 of the
Securities Exchange Act of 1934.

This Power of Attorney shall remain in full force and
effect until the Reporting Person is no longer required
to file reports pursuant to Section 16(a) of the Securities
Exchange Act of 1934 and the rules thereunder with respect
to the Reporting Person's holdings of and transactions
in securities issued by the Company, unless earlier
revoked by the Reporting Person in a signed writing
delivered to the attorneys-in-fact.

IN WITNESS WHEREOF, the Reporting Person has caused
this Power of Attorney to be executed as of this
14 day of November, 2014.

/s/ Luis F. Machuca
Luis F. Machuca

STATE OF OREGON, County of Multnomah, ss.

The foregoing instrument was acknowledged before
me this 14th day of November, 2014 by Luis F. Machuca.

/s/Geraldine A. George
Notary Public for Oregon
Commission No. 468893
My Commission Expires: May 15, 2016