Leaf: opposite along the lower stem, centre and upper alternate; lance-like, usually with sharp teeth, upper surface slightly rough, lower surface with short whitish hairs, often folded upward along the midrib, stalk usually winged
Leaf: opposite on the lower stem, upper alternate, flat, narrow, at least 3 times as long as wide, upper surface rough, lower with long hairs
« Return to the thread "Very tall perennial sunflower - what species is it?"
« Return to Plant ID forum
« Return to the Garden.org homepage