Interaction domain on proteins that modulate this potent
hormone allows them to stack back-to-front like button magnets
Wikipedia lists 65 adjectives that botanists use to describe
the shapes of plant leaves. In English (rather than Latin) they mean the leaf
is lance-shaped, spear-shaped, kidney-shaped, diamond shaped,
arrow-head-shaped, egg-shaped, circular, spoon-shaped , heart-shaped,
tear-drop-shaped or sickle-shaped — among other possibilities.