Children (9 direct children, 13 direct and indirect children):
Pentarrhinum balense
Pentarrhinum gonoloboides
Pentarrhinum somaliense
Pentarrhinum insipidum
Pentarrhinum ledermannii
Pentarrhinum abyssinicum
(tree size 4)
Pentarrhinum fasciculatum
Pentarrhinum iringense
Pentarrhinum coriaceum