When grown hard like a succulent (low nutrient, full sun, and little
water) the plant often drops a number of leaves and store more water
in the petioles, causing it to become plump and delicious. At night it
also pulls all of the leaves and petioles together. It gets a little
larger in the ground. ;)
This species is known incorrectly under several other names like O. peduncularis, O. herrerae and O. teneriensis.