Plants with heart-shaped leaves are a wonderful addition to any garden or indoor plant space! ... The petioles, or stems, of ...

Rhubarb, also known as pieplant, is an herbaceous perennial grown for its unique, tart flavor of the thick leaf stalks (petioles). Rhubarb sends up its thick, edible stalks early in the spring, a much ...

The petioles of ginkgo leaves form the protective layer simultaneously and wait for a hard frost to trigger all leaves to drop at the same time, which results in a lovely shower of golden leaves. Q.

The two- to four-foot-long leaf petioles have sharp thorns. The slender trunk is strong and able to hold 10 to 15 leaves. This is a slow-growing palm, producing only one or two leaves a year.

For petioles, 14-day-old plants grown on agar plates were irradiated for 24 h with unilateral blue light from a light-emitting diode (LED) array at 0.01 µmol m −2 s −1. For ...