The title says it all.

Here is a comparison photo of the flowers of Hoya narcissiflora and an umbel of Hoya sp. Surigao Del Sur blooms:

Here are a few macro photos that I took of the blooms:

Here is the first photo that I grabbed with my phone after most of the flowers were open:

The flowers opened up over the course of three days. Here were the first that popped open. There was no detectable scent.

In the years since I first tried to grow the plant I had switched from a peat-based potting mix to a much more open substrate consisting of primarily coir chips. This mix has made a huge difference in my ability to grow these more finnicky species. Although I have only been growing Hoya narcissiflora for a few months, it has proven to be totally unproblematic growing in coconut husk chips.

I first attempted to grow Hoya narcissiflora back around 2018, or 2019 with very bad results. I could barely keep it alive, restarting it a couple of times and losing it within a year. Fast forward a few years to spring 2024, and my very good friend Julie Kennedy from the UK sent me a nicely rooted cutting as part of a Hoya exchange. Below the foliage of Hoya narcissiflora:

Hoya narcissiflora was named after the plant genus of Narcissus, which includes daffodils, because of the similarities in the shape and look of the flowers.

Hoya narcissiflora was found in a solitary location in a lowland primary forest at 100-300 meters in elevation near Sanggau, West Kalimantan. It was growing epiphytically on a tree in deep shade with humidity above 80%.

The original collector that posted photos to Facebook provided a live specimen to S. Rahayu, and M. Rodda. They published the new species in Reinwardtia in 2017.