35. Helicteropsis microsiphon (EDGE species)

Belongs to the monotypic genus; Subfamily: Malvoideae; Tribe: Hibisceae.

Shrub 2-4 m, woody stems. Leaves spiral, blade suborbicular, cordate. Inflorescences cymose, flowers grouped in multiflored panicles; small flowers. Helicteropsis differs from other genera in the morphology of its leaves and flowers.

Phylogenetically, it is related to Hibiscus grandidieri (Koopman & Baum, 2008).

Flowering time: June

Population: 3 subpopulations

Lower elevation limit: 9 metres

Fruiting time: August

Trends:

Upper elevation limit: 1,000 metres

Distribution

H. microsiphon is endemic to the DIANA Region of Antsiranana Province.

Number of locations: 3

EOO: 1,033 km²

AOO: 24 km²

Habitat and Ecology

Dry forest near limestone.

Threats

Wildfires, logging and charcoal production.

Conservation

This species occurs in Ambodivahibe (Cat. V) and Ambohitr’Antsingy (Cat. V) Protected Areas.

It is not reported in ex situ collections (BGCI 2022).

35. Helicteropsis microsiphon (Baill.) Hochr.

EDGE Score

ED Score

GE Score