perennial clamboring vine on Juglans microcarpa in calcareous soil and white limestone gravels in arroyo tributary of Fresnal Creek in remote Hells Half-acre region
Endemic to Maui and the Big Island, considered Rare. Suspect these trees were planted or progeny of planted trees in Kipuka Puaulu as known wild populations on Big Island are in Hamakua and Windward Kohala.
Note older foliage only minutely pubescent. Plants scattered on a broad grassy roadside right-of-way in coarse gravelly calcareous/caliche soils of low rolling limestone ridges along eastern foothills of Sacramento Mountains.