ORS 130.550

Unless otherwise provided by the terms of the trust instrument, when property is to be distributed under the trust to any beneficiary who is related by blood or adoption to the settlor, and the beneficiary dies leaving lineal descendants either before the settlor dies or before the time set in the trust instrument for distribution, the descendants take by right of representation the property the beneficiary would have taken if the beneficiary had not died. Unless otherwise provided by the terms of the trust instrument, this section applies to a beneficiary who is entitled to receive property under a class gift if the beneficiary dies after the trust instrument is executed.