There are several musical projects under the name Cactus:
These are photos from concerts where Cactus played, so they may be of other bands that played the concert as well.
Ten Years After / Cactus / Toe Fat Jul 28, 1970 San Francisco, California, United States Uploaded by Zimtrim
Jimi Hendrix / Cactus / Rube Tuben & The Rhondonnas Jul 26, 1970 Seattle, Washington, United States Uploaded by Zimtrim
Ten Years After / Cactus Jul 19, 1970 Baltimore, Maryland, United States Uploaded by Zimtrim
Jethro Tull / white lightning / Brotherhood Rush / Cactus Jul 15, 1970 Chicago, Illinois, United States Uploaded by Zimtrim
Jethro Tull / Cactus / Blodwyn Pig Jul 8, 1970 Philadelphia, Pennsylvania, United States Uploaded by Zimtrim