Hoya verticillata (in Wax plants)


11 Feb 2020 10:28:46
Quality Grade
Phum Prêk Thmâ, Koh Kong, Cambodia
Added to iNaturalist
16 Feb 2020 22:01:01
Last updated
22 May 2020 18:31:48

Identifications and Comments

Identification by geechartier at 16 Feb 2020 22:01:03
Taxon: Hoya [genus]
Identification by fern_friend at 20 May 2020 04:02:44
Taxon: Hoya verticillata [species]

I'm about 90% sure this is some variety of Hoya verticillata. Some good images of H. verticillata on page 143: https://www.researchgate.net/publication/320010983_Preliminary_checklist_of_Hoya_Asclepiadaceae_in_the_flora_of_Cambodia_Laos_and_Vietnam Collected near-ish (also known from Sihounoukville): https://www.gbif.org/species/7311750

Comment by geechartier at 20 May 2020 11:54:40
Location edited. I just noticed that my camera had recorded completely inaccurate co-ordinates (approx 8km from the actually location at a place I have never visited).
Comment by geechartier at 20 May 2020 12:10:15
@fern_friend, thank you. I have downloaded and had a quick look at the checklist. One concern over H. verticillata is that it is said to grow on limestone. The plant in this observation is growing at the muddy bank of a brackish stream, where the adjacent land is mangrove swamp. There is no limestone in the area I study.
Comment by fern_friend at 20 May 2020 22:40:33
Yes, in the Habitat section they do mention a preference for limestone however if you look at the studied specimens section they mention one example H. verticillata growing on "along the river on eroded sandstone" which I imagine is similar to the habitat you found it in? Also H. verticillata seems to be the dominant specific epithet in a variable and poorly understood species complex so while the description is not perfect I think it is the best candidate based on current information.
Comment by geechartier at 22 May 2020 18:31:43
@fern_friend, thank you
Identification by geechartier at 22 May 2020 18:31:48
Taxon: Hoya verticillata [species]

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Observation content (c) Gerard Chartier, some rights reserved (CC BY)