Chilopsis linearis (Cav.).    From Wordnik.com.  [MyLinkVault Newest Links] Reference

Chilopsis linearis.    From Wordnik.com.  [Manual of Gardening (Second Edition)] Reference

Avoid trees with shallow invasive roots, such as Australian acacias, ash, beech, birch, cypress, elm, eucalyptus, maple, mesquite, mulberry, pepper tree, poplar, sycamore and willow, including desert willow (Chilopsis).    From Wordnik.com.  [Perfect plants to place over septic systems] Reference