Willow is deciduous tree which belongs to the family Salicaceae. This plant originates from China, but it can be found throughout the northern hemisphere (Europe, Asia and North America).Willow inhabits temperate areas that provide enough moisture and direct sunlight.illow trees have elongated leaves that are green on the upper side and whitish on the bottom side. Color of the leaves changes seasonally. Leaves turn from green to yellow in the autumn. Willow is deciduous plant, which means that it sheds its leaves each winter. Willow has extremely strong and well developed root.
Soak wooden skewers 20 to 30 minutes. Heat a grill to medium. Skewer the white and red onion slices, passing the skewer through each layer; skewer the green, red, orange, and yellow peppers. Place the skewered vegetables, olive oil, salt, and pepper in a shallow bowl, and turn the vegetables until they are coated. Place vegetables on grill, and cook until lightly charred, 6 to 8 minutes per side. Transfer vegetables to a cutting board. Cut peppers into 1/2-inch-thick slices, and remove skewers from onions. Transfer vegetables to a serving platter.
Cabbage: Cut the cabbage in half and then slice each half into thick 1-inch slices. Toss with olive oil and Kosher salt. You can skewer each big slice to keep it from falling apart. Grill over a medium-high grill for about 10 minutes, then turn and grill for another ten minutes.