Orobanche minor, small broomrape, is found throughout much of East Africa and parasitizes a diversity of hosts. Of particular interest in Rwanda is its parasitism of Peucedanum linderi, wild celery, a main food of mountain gorillas. Small broomrape parasitizing wild celery in a garden of plants favored by mountain gorillas. The broomrape is just above the yellow leaf, dying as a result of parasitism.
For further reading see Haustorium 82.