In 1971, Koji Enokura built a concrete wall between two trees for the Paris Biennial. It was almost 10 feet tall but, in the black-and-white photograph that now hangs on the second floor of Blum & Poe, its stained surface looks delicate. So do the surfaces of the massive, raw-cotton canvases that Enokura stained with dark brown acrylic. While making one of these Intervention works, he laid a wood plank down on top of the paint before it dried, leaving an imprint of the wood grain. The actual plank leans up against the canvas, right next to its image, looking vulnerable, as if a gust of air could topple it. 2754 S. La Cienega Blvd.; through July 13. 310-836-2062,

Tuesdays-Saturdays. Starts: June 7. Continues through July 13, 2013

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