Arboretum » Campus Plant Identification – Avery Hall and Benson Auditorium » Front of Benson Auditorium, north side Front of Benson Auditorium, north side Echeveria lilacina (Ghost echevaria), Sedum treleasei (Silver sedum), Haworthii fasciata, Aeonium ‘Swartkop’ (Black rose), Aeonium ‘Sunburst’, Aloe Hyb, Echeveria ‘Mauna Loa’