Lop-sided onion, Twisted-leaf onion
The Allium obliquum (Lop-sided onion, Twisted-leaf onion) is perennial, belongs to the Amaryllidaceae family and is a stone garden plant. The flowers are yellow and the leaves green. The herbaceous perennial plant will be up to 100 cm (39.4 in) high. The soil conditions should be dry and the plant area sunny.