Lotus (loh-tus), Papilionaceae Family. Lotus is a showy group of low, showy ground covers. Grows in any garden soil, in a sunny spot. Lotus corniculatus (kor-nik-yew-lay-tus) Bird’s Foot Trefoil. A perennial growing to 2 feet, with yellow flowers tinged in red. Native to Europe and Asia, it is a hardy ground cover, sometimes grown for its foliage.