Brassicaceae Eruca sativa Norge White arugula bilder blomst botanical edible flora flower food garden gardening green grønn grønnsak hage healthy hvit kjøkkenhage korsblomstfamilien leaf leaf lettuce leaf vegetable mat norsk plant plante rocket roquette ruccola rucola salad salat salatplante salatsennep sennepskål sommer species spiselig summer sunn vegetables