| Field notes | Shaded to partly open areas in the primary evergreen forest understory, granite bedrock. Vine; stems green, petioles green with purplish at both ends; bracts light greenish with purple hue; calyx cream, disc light yellow; corolla tube: lower narrower part cream-reddish, expanded upper part yellow; lobes outside dull pale orangish, lobes inside: upper half orange, lower half and throat yellow; anthers white, filaments light yellowish; blades dark green above, lighter green below |