The bottom half of the leaf is smooth and the top half has teeth. The white-leaf manzanita, Arctostaphylos vasida , uses two techniques to survive here. The color is light green to reflect energy. Its leaves are not flat but vertical and pivot with the sun to keep their edges toward the sun thus minimizing surface area. To get its seeds distributed it coats the hard coating with a sugar.
Animals eat the seeds and their stomach acids weaken the seed coat.
When deposited it has a supply of fertilizer and water and has been transported away from the parent plant. Hard seed coats evolved in a fire environment. Seeds under the parent need the fire conditions to grow and replace their parent. A thicket of himalaya berry is like blackberry. It has a compound leaf and spines along the leaflet, larger ones on the stems and big spines on the canes to deter it from being eaten by anything but birds.