[ The genus is threatened by livestock grazing, invasive plants and threats to pollinators.[4]]Species
Three species are recognised:[[4]]
- Megistostegium microphyllum {{Au|Hochr.}}
- Megistostegium nodulosum {{Au|(Drake) Hochr.}}
- Megistostegium perrieri {{Au|Hochr.}}
References
1. ^1 2 {{cite journal | last = Koopman | first = Margaret M. | date = 2011 | title = A synopsis of the Malagasy endemic genus Megistostegium Hochr. (Hibisceae, Malvaceae) | url = http://sciencepress.mnhn.fr/sites/default/files/articles/pdf/a2011n1a7.pdf | journal = Adansonia | publisher = Publications Scientifiques du Muséum national d'Histoire naturelle | location = Paris | series = 3 | volume = 33 | issue = 1 | pages = 101–113 | doi = 10.5252/a2011n1a7 | accessdate = 17 April 2017 }}