Follow CBSDFW.COM: Facebook | Twitter

LINCOLN, Neb. (CBSDFW.COM/AP) — A Nebraska senator is calling for further investigation of synthetic marijuana following a recent rash of overdose cases.

K2, or “spice” is a synthetic plant product that mimics the high of natural marijuana. It has been of serious concern in states such as Texas where marijuana is not legally available in recreational or medicinal form.

Spice is sold throughout Texas in convenient stores and smoke shops. It is considered dangerous. Some emergency room physicians have seen users with symptoms such as psychosis, high blood pressure, and hallucinations.

Texas State Rep. Travis Clardy (R) earlier this month introduced two bills that would make the synthetic drug illegal.

Emergency responders in Amarillo, Texas this year have reported an increase in children overdosing on the drug. Meanwhile, crews in the Austin area reported 20 K2 overdoses on Easter weekend alone.

Gov. Gregg Abbott has indicated that he is open to signing Rep. Clardy’s bill.

(©2015 CBS Local Media, a division of CBS Radio Inc. All Rights Reserved. This material may not be published, broadcast, rewritten, or redistributed. The Associated Press contributed to this report.)