Parasitism and haustorium anatomy of Krameria lappacea (Dombey) Burdet & B.B. Simpson (Krameriaceae), an endangered medicinal plant from the Andean deserts

► Hemiparasitism for Krameria lappacea confirmed. ► Wide host range of 18 species from 17 genera in 12 families (four new angiosperm families as host plants for family). ► Number of known host plant species for family nearly doubled. ► Natural distribution and abundance likely not limited by host plants. ► Likely ecological keystone species due to locally high abundance possible.