Nadhanielle Simonsson Juhonewe
Hoya researcher and botanical author whose work connects field exploration, living collections and taxonomic study in New Guinea.
Why this person appears in Hoya Library
Hoya researcher and botanical author whose work connects field exploration, living collections and taxonomic study in New Guinea.
Researching Hoyas in New Guinea
Nadhanielle Simonsson Juhonewe, also published as Nadhanielle Simonsson, is a Hoya researcher whose work combines field exploration, living collections and herbarium study. With Michele Rodda, she has published contributions to a revision of the Hoyas of Papuasia.[1]
The International Plant Names Index connects both name forms and records her botanical author abbreviation as Simonsson. It lists Hoya platycaulis Simonsson & Rodda, published in Asklepios in 2009, as an example of a name she coauthored.[2] The Hoya cultivar registrar also identifies her as Nathalie Simonsson.
From field plants to flowering collections
In their 2017 paper, Simonsson Juhonewe and Rodda explain that she moved to Papua New Guinea in 2010 to conduct fieldwork and grow selected collections at different elevations. Cultivation allowed plants found without flowers to bloom for photography, specimen preparation and identification. The authors reported 55 expeditions in 11 provinces by December 2015, with observations on more than 4,000 Hoya plants and about 1,500 specimens brought into cultivation. These figures describe that research project at that date.[1]
Part I of the revision published ten new species, one new subspecies and one new combination. Its descriptions draw on historical herbarium material as well as field and cultivated collections, showing how those sources can complement one another.[1]
Continuing the revision
Rodda and Simonsson’s 2022 Part II describes her fieldwork in Papua New Guinea during 2010–2016 and records the relocation of the remaining living collections to Lae Botanic Garden and Singapore Botanic Gardens in 2017. That paper publishes eight new species and one new subspecies, and provides a fuller description of Hoya leucantha using herbarium material and more recent observations.[3]
A guide for further reading
Natural History Publications (Borneo) lists Simonsson and Rodda as the authors of A Guide to Hoya of New Guinea. The publisher’s listing is a route to the book; the research summaries above are grounded in the cited journal papers.[4]
Sources and further reading
- Simonsson Juhonewe, N. & Rodda, M. (2017). Contribution to a revision of Hoya (Apocynaceae: Asclepiadoideae) of Papuasia. Part I: ten new species, one new subspecies and one new combination. Gardens’ Bulletin Singapore 69(1): 97–147. DOI: 10.3850/S2010098116000093. Scope on p. 97; project methods and dated totals on p. 100.
- International Plant Names Index. Simonsson, Nadhanielle, author record 20016281-1. Checked 25 October 2026.
- Rodda, M. & Simonsson, N. (2022). Contribution to a revision of Hoya (Apocynaceae: Asclepiadoideae) of Papuasia. Part II: eight new species, one new subspecies. Blumea 67(2): 139–155. DOI: 10.3767/blumea.2022.67.02.08. Abstract and fieldwork history on p. 139.
- Natural History Publications (Borneo). A Guide to Hoya of New Guinea, publisher product page. Authors: Nadhanielle Simonsson and Michele Rodda; ISBN 9789838122221. Listing checked 25 October 2026; the complete book has not been reviewed here.