Related how?

Biota (Life)
Eukaryote (Eukarya)
Diaphoretickes (Plants+hc+sar megagroup)
Archaeplastida
Plant (Green plants)
Biliphyta
Rhodophyta (Red algae)
Eurhodophytina
Florideophyceae (Florideae)
Rhodymeniophycidae
Ceramiales
Delesseriaceae
Nitophylloideae
Phycodryeae

Halicnide (41791872)

Children (2 direct children, 2 direct and indirect children):

Halicnide similans

Halicnide ovalifolia