Fig. 2From: Effects of Hedera helix L. removal on the understory early regeneration in an oak temperate forest in Mexico CityBoxplot of the number of seedlings in each treatment every 2 months: plots invaded by H. helix (IH); control plots without H. helix (CV); invaded plots where H. helix was removed (IR); and control plots without H. helix where we manually removed the understory vegetation (CR). Letters represent statistically different groupsBack to article page