petiole

"The abdomen and cephalothorax of spiders are closely attached, while in ants the equivalent of these body parts are separated by a narrow segment called the petiole," Poinar said.

The petiole of the fourth leaf — the stalk that attaches it to the plant stem — from the top is identified as ideal.

In the 1800s botanists proposed that the sheath part of a grass leaf represented the evolutionary equivalent of the petiole, the stalk that connects a typical plant’s leaf to its stem.

Botanists have discovered that money is not only the root of all evil, but also its hypocotyl, petiole and axillary bud.

His multiplication how-to: Take a leaf cutting, leaving as much petiole, or stalk, as possible.