A source-scoped mixed-forest habitat above 100 m at Gunung Tajam and Batu Mentas. Hoya multiflora, H. scortechinii and H. coronaria were reported.
Environment and variation
Gunung Tajam was described as steep-sloped forest and Batu Mentas as riverside forest, with Syzygium dominant. Hoya multiflora was recorded at Gunung Tajam, 200 m, in the small class (1–3); H. coronaria was lithophytic on river stone at Batu Mentas.
Places with this habitat
Hoyas documented in this habitat
What we still do not know
The detailed section assigns about 205 mm rainfall/month, 27 °C and 77.5% RH to mixed forest, while the abstract assigns these values to padang. No station or period is stated. Two sites do not define a species-wide habitat requirement.
Research and evidence
Rahayu, Fakhrurrozi & Putra (2018), Biodiversitas 19(2):369–376. Source-specific habitat evidence does not establish a cultivation prescription.
Climate summaries describe their stated place, period, and method. They do not measure every plant’s microclimate. Maps are withheld until coordinate precision and sensitivity have been reviewed.