INTRODUCTION
Six spp. of Jasminum are indigenous to Eastern Cape province.
CitedWikipedia 1·Wikipedia 2·Wikipedia 3
These represent a subtle adaptive radiation in terms of
- biogeographical affinities,
- climate,
- substrates,
- growth-form,
- vegetative phenology,
- leaf-form, and
- vegetation types occupied.
AIMS
The aim of this Post is to provide a concise guide to the spp. of Jasminum indigenous to Eastern Cape province, without reference to floral features.
CitedRelated post
Jasminum angulare
frequently observed in iNaturalist, in the study area
https://www.inaturalist.org/taxa/431163-Jasminum-angulare
subtropical affinities
sprawling scrambler
evergreen
each leaf has three leaflets
thicket in mesic climates
Citedredlist.sanbi.org
Jasminum multipartitum
frequently observed in iNaturalist, in the study area
https://www.inaturalist.org/taxa/588155-Jasminum-multipartitum
affinities with habitats of megaherbivores
lax shrub, 1.5 meters high
evergreen
each leaf has one broad leaflet
scrub on nutrient-rich soils in mesic climates
Citedredlist.sanbi.org·web.archive.org·Related post
Jasminum breviflorum
not yet observed in iNaturalist, in the study area
https://www.inaturalist.org/taxa/588153-Jasminum-breviflorum
shrubby scrambler
deciduous
each leaf has one leaflet
edges of thicket in relatively dry climates
Citedredlist.sanbi.org
Jasminum streptopus
not yet observed in iNaturalist, in the study area
https://www.inaturalist.org/taxa/588158-Jasminum-streptopus
shrubby liane
evergreen
each leaf has one leaflet
thicket/forest-edge on nutrient-poor substrates
CitedRelated post
Jasminum abyssinicum
not yet observed in iNaturalist, in the study area
https://www.inaturalist.org/taxa/588152-Jasminum-abyssinicum
tropical affinities
tall woody liane
evergreen
each leaf has three broad leaflets
restricted to a few patches of tall forest
CitedRelated post
Jasminum tortuosum
not yet observed in iNaturalist, in the study area
https://www.inaturalist.org/taxa/431172-Jasminum-tortuosum
temperate affinities
liane
evergreen
each leaf has three narrow leaflets
edge/understorey of Afromontane forest/thicket
CitedRelated post
DISCUSSION
Most of the relevant spp. are restricted to vegetation exempt from wildfire. In the case of J. streptopus, the habitat is likely to be subject to scorching from wildfires in adjacent swards of grass.
Jasminum angulare has an anomalous occurrence in the Klein Karoo in Western Cape province (https://www.inaturalist.org/observations?place_id=48634&subview=map&taxon_id=431163 and https://www.inaturalist.org/observations?place_id=48653&subview=map&taxon_id=431163).
The most poorly-documented species is Jasminum tortuosum, which is approximately restricted to fire-free vegetation in the Cape Floristic Region.
CitedWikipedia
FOOTNOTES
Gemini
MY QUESTION
Which spp. of Jasminum are indigenous to Eastern Cape province? Do not claim Jasminum glaucum unless you can prove it. Supply full references.
ANSWER FROM GEMINI
Four species of Jasminum are indigenous to the Eastern Cape province.
Indigenous Species of Jasminum in the Eastern Cape
Jasminum angulare Vahl
Habit: Scrambling or climbing shrub.
Habitat & Distribution: Coastal and inland thicket, scrub, and rocky hillsides. Extends from the Little Karoo through the Eastern Cape, Free State, KwaZulu-Natal, and Mpumalanga.
Diagnostic Features: Distinctly 3-foliolate (trifoliate) leaves with angular branchlets.
Jasminum multipartitum Hochst.
Habit: Twiggy, scrambling evergreen shrub.
Habitat & Distribution: Succulent thicket, dry woodlands, and boulder-strewn kopjes. Widely distributed from the Albany/Uitenhage district northeastwards through Transkei, KwaZulu-Natal, Mpumalanga, and Gauteng.
Diagnostic Features: Simple, dark green, lustrous leaves; branchlets minutely puberulous; typically 1-flowered terminal inflorescences.
Jasminum breviflorum Harv. ex C.H.Wright
Habit: Scrambling woody climber or shrub.
Habitat & Distribution: Bushveld, forest margins, and riverine thicket. Recorded in the Eastern Cape, KwaZulu-Natal, Mpumalanga, Limpopo, and Gauteng.
Diagnostic Features: Simple leaves with notably short corolla tubes compared to other native species.
Jasminum streptopus E.Mey.
Habit: Weak scrambler or understory climber.
Habitat & Distribution: Forest margins and riverine bush, particularly in coastal forests and Pondoland (Eastern Cape/KwaZulu-Natal border region). Both var. streptopus and var. transvaalensis (S.Moore) I.Verd. are recognized in eastern coastal/forest habitats.
Diagnostic Features: Simple, ovate-acuminate leaves with distinct acarodomatia (domatia) in the vein axils underneath.
Why Jasminum glaucum (L.f.) Aiton is Excluded
Fact: Jasminum glaucum is not indigenous to the Eastern Cape. It is a winter-rainfall endemic restricted to the Western Cape and Northern Cape.
Taxonomic Explanation: Early literature (e.g., Harvey & Wright in Flora Capensis, 1906) misapplied the name Jasminum glaucum to include eastern collections. In her revision of southern African Oleaceae, Dr. Inez C. Verdoorn (1956, 1963) clarified that Eastern Cape specimens previously identified as J. glaucum were actually Jasminum multipartitum Hochst.
True J. glaucum: Completely glabrous; glaucous leaves ~3× longer than broad; terminal inflorescence normally 3-flowered; confined to the south-western and western winter-rainfall Cape.
J. multipartitum: Minutely puberulous branchlets; green leaves (drying blackish); terminal inflorescence normally 1-flowered; distributed through the summer-rainfall regions from the Eastern Cape northeastward.
References
- Verdoorn, I.C. (1956). The Oleaceae of Southern Africa. Bothalia 6(3): 549–639. (Specifically pp. 566–568, clarifying the distinction between J. glaucum and J. multipartitum).
- Verdoorn, I.C. (1963). Oleaceae. In: R.A. Dyer, L.E. Codd, & H.B. Rycroft (Eds.), Flora of Southern Africa, Vol. 26, pp. 100–128. Department of Agricultural Technical Services, Pretoria.
- Goldblatt, P. & Manning, J.C. (2000). Cape Plants: A conspectus of the Cape Flora of South Africa. Strelitzia 9. National Botanical Institute, Cape Town & Missouri Botanical Garden.
- SANBI Red List of South African Plants (2024.1 / Online database):
- Foden, W. & Potter, L. (2005). Jasminum angulare Vahl.
- Foden, W. & Potter, L. (2005). Jasminum multipartitum Hochst.
- Foden, W. & Potter, L. (2005). Jasminum breviflorum Harv. ex C.H.Wright.
- Foden, W. & Potter, L. (2005). Jasminum streptopus E.Mey. var. transvaalensis (S.Moore) I.Verd.
- Foden, W. & Potter, L. (2005). Jasminum glaucum (L.f.) Aiton (Distribution: Western Cape, Northern Cape).
MY QUESTION
Why have you excluded Jasminum abyssinicum?
ANSWER FROM GEMINI
Excluding Jasminum abyssinicum Hochst. ex DC. from the list of indigenous Eastern Cape species was an oversight.
Historically, its status in the Eastern Cape was unclear, but modern field recording and taxonomic surveys confirm its presence.
The Status of Jasminum abyssinicum
Taxon Summary
Habit: Vigorous, high-climbing woody liana or forest scrambler (stems often reaching 10–20+ m into the canopy).
Habitats: High-canopy afrotemperate, mistbelt, and scarp forests.
Diagnostic Features: Leaves are 3-foliolate (trifoliate) with distinct, tufted acarodomatia (domatia) present in the axils of the main lateral veins underneath. It is distinguished from J. angulare by its larger, broader, panicle-like inflorescences and strictly forest-canopy climbing habit (versus the scrambling, more open-shrub habit and 3-flowered or compact cymes of J. angulare).
Why It Was Previously Overlooked
In older taxonomic accounts—most notably Dr. Inez C. Verdoorn’s revision of southern African Oleaceae in Bothalia (1956) and Flora of Southern Africa (1963)—the known southern limits for J. abyssinicum were recorded as the high mistbelt forests of Limpopo, Mpumalanga, and northern KwaZulu-Natal (such as the Nkandla forest). At the time, specimens were routinely identified as J. wyliei N.E.Br., which Verdoorn synonymized under J. abyssinicum.
Subsequent botanical mapping and forest classification surveys in South Africa (e.g., von Maltitz et al., 2003) have documented J. abyssinicum further south into the Amatole and Eastern Cape Mistbelt forests (e.g., around Hogsback and Stutterheim).
Updated List of Indigenous Eastern Cape Jasminum Species
With J. abyssinicum included, five species of Jasminum are indigenous to the Eastern Cape:
- Jasminum abyssinicum Hochst. ex DC. (Trifoliate; high forest climber)
- Jasminum angulare Vahl (Trifoliate; thicket/scrambler)
- Jasminum multipartitum Hochst. (Simple-leaved; dry thicket/shrub)
- Jasminum breviflorum Harv. ex C.H.Wright (Simple-leaved; short corolla tube)
- Jasminum streptopus E.Mey. (Simple-leaved; domatia present in axils underneath)
References
- Verdoorn, I.C. (1956). The Oleaceae of Southern Africa. Bothalia 6(3): 549–639 (specifically pp. 563–565).
- Verdoorn, I.C. (1963). Oleaceae. In: R.A. Dyer, L.E. Codd, & H.B. Rycroft (Eds.), Flora of Southern Africa, Vol. 26, pp. 100–128. Department of Agricultural Technical Services, Pretoria.
- von Maltitz, G., Mucina, L., Geldenhuys, C.J., Lawes, M.J., Eeley, H.A.C., Adie, H., Vink, D., Fleming, G. & Bailey, C. (2003). A classification system for South African indigenous forests. CSIR Report ENV-S-C 2003-017, Pretoria.
- SANBI Red List of South African Plants (2024.1 / Online Database):
- Foden, W. & Potter, L. (2005). Jasminum abyssinicum Hochst. ex DC. (Status: Least Concern; Biomes: Forest, Grassland).
- Shango Solutions
END OF TRANSCRIPT FROM AI
Posted on July 24, 2026 04:34 AM by
milewski
The author added the following in comments beneath the original post.
Jasminum fluminense:
Citedredlist.sanbi.org
https://www.inaturalist.org/taxa/164228-Jasminum-fluminense
CitedRelated post
Chatgpt
MY QUESTION
Has Jasminum fluminense been recorded in the Pondoland Centre of Endemism? Supply full references.
ANSWER FROM CHATGPT
There is no evidence that Jasminum fluminense has been recorded from the Pondoland Centre of Endemism. The available floristic and distributional evidence indicates that its South African range lies north of the Pondoland Centre, principally in KwaZulu-Natal, Mpumalanga and Limpopo, without verified records from the Eastern Cape portion of Pondoland.
Specifically:
The SANBI Red List maps and lists the South African distribution of Jasminum fluminense subsp. fluminense as occurring in KwaZulu-Natal, Mpumalanga and Limpopo, with no Eastern Cape records. Since a substantial part of the Pondoland Centre lies in the Eastern Cape, this is significant evidence against its occurrence there.
Plants of the World Online (Kew) likewise recognizes the species as native to tropical and southern Africa but does not indicate a distribution extending into the Pondoland region.
Floristic treatments and taxonomic papers dealing specifically with the Pondoland Centre of Endemism include numerous endemic and non-endemic taxa but do not list Jasminum fluminense among the flora of the region.
By contrast, several other South African jasmines are known from the Pondoland region, including Jasminum multipartitum and Jasminum breviflorum, both of which are recorded from the Eastern Cape.
References
Foden, W. & Potter, L. 2005 (updated in SANBI Red List version 2024.1). Jasminum fluminense Vell. subsp. fluminense. National Assessment: Red List of South African Plants. South African National Biodiversity Institute, Pretoria.
Green, P.S. 2006. World Checklist of Oleaceae (basis of the Kew treatment). In: Plants of the World Online. Royal Botanic Gardens, Kew.
Raimondo, D., von Staden, L., Foden, W., Victor, J.E., Helme, N.A., Turner, R.C., Kamundi, D.A. & Manyama, P.A. 2009. Red List of South African Plants. Strelitzia 25. South African National Biodiversity Institute, Pretoria.
Van Wyk, A.E. & Smith, G.F. 2001. Regions of Floristic Endemism in Southern Africa: A Review with Emphasis on Succulents. Umdaus Press, Pretoria. (Standard reference defining the Pondoland Centre of Endemism.)
END OF TRANSCRIPT FROM AI
Gemini
MY QUESTION
Which of the following spp. of Jasminum is not evergreen? angulare, multipartitum, abyssinicum, tortuosum, breviflora, streptopus. Supply full references.
ANSWER FROM GEMINI
Among the species listed, Jasminum breviflorum (often rendered as J. breviflora) is not evergreen; it is a deciduous to semi-deciduous scrambling shrub or climber that drops its leaves during the dry or winter season.
By contrast, the other five species—J. abyssinicum, J. angulare, J. multipartitum, J. streptopus, and J. tortuosum—are all evergreen species native to tropical and southern Africa.
Foliage & Habit Comparison
Species Foliage Habit Primary Native Range
Jasminum breviflorum Deciduous / Semi-deciduous South Africa, Eswatini, Mozambique
Jasminum abyssinicum Evergreen High-altitude/montane tropical & Southern Africa
Jasminum angulare Evergreen South Africa (Eastern Cape, Western Cape, KwaZulu-Natal)
Jasminum multipartitum Evergreen South Africa, Eswatini, Mozambique
Jasminum streptopus Evergreen South Africa (Coastal forest understory)
Jasminum tortuosum Evergreen South Africa (South-western Cape)
Full Taxonomic & Bibliographic References
Jasminum breviflorum Harv. ex C.H.Wright (Deciduous / Non-evergreen)
Wright, C. H. (1906). Oleaceae. In: Thiselton-Dyer, W. T. (Ed.), Flora Capensis, Vol. 4, Sect. 1, pp. 479–488. Lovell Reeve & Co., London. (Provides formal description, noting its deciduous/seasonal leaf-loss habit).
Verdoorn, I. C. (1956). The Oleaceae of Southern Africa. Bothalia, 6(3), 549–639. (Specifically pp. 569–571, detailing species key and foliage persistence).
Kupicha, D. (1983). Oleaceae. In: Launert, E. (Ed.), Flora Zambesiaca, Vol. 7, Part 1, pp. 300–327. Flora Zambesiaca Managing Committee, London.
Jasminum abyssinicum R.Br. ex DC. (Evergreen)
De Candolle, A. P. (1844). Prodromus Systematis Naturalis Regni Vegetabilis, Vol. 8, p. 311. Fortin, Masson et Socios, Paris.
Green, P. S. (1961). Studies in the Oleaceae: I. Oleaceae in Africa south of the Sahara. Kew Bulletin, 15(1), 41–61.
Jasminum angulare Vahl (Evergreen)
Vahl, M. (1794). Symbolae Botanicae, Pars 3, p. 1. Nicolaus Möller et Filius, Copenhagen.
Coates Palgrave, K. (2002). Palgrave’s Trees of Southern Africa, 3rd Ed. (revised by Meg Coates Palgrave), p. 942. Struik Publishers, Cape Town.
Jasminum multipartitum Hochst. (Evergreen)
Hochstetter, C. F. (1844). Nova Genera et Species Plantarum Africanae. Flora, 27(2), p. 825.
Pooley, E. (1998). A Field Guide to Wild Flowers of KwaZulu-Natal and the Eastern Region, p. 124. Natal Flora Publications Trust, Durban.
Jasminum streptopus E.Mey. (Evergreen)
Meyer, E. H. F. (1836). Commentariis de Plantis Africae Australioris, p. 173. Leopoldum Voss, Leipzig.
Boon, R. (2010). Pooley’s Trees of Eastern South Africa: A Complete Guide, p. 488. Flora & Fauna Publications Trust, Durban.
Jasminum tortuosum Willd. (Evergreen)
Willdenow, C. L. (1797). Caroli a Linné Species Plantarum, Ed. 4, Vol. 1, Pars 1, p. 36. G.C. Nauk, Berlin.
Goldblatt, P., & Manning, J. C. (2000). Cape Plants: A Conspectus of the Cape Flora of South Africa. Strelitzia, 9, 584–585. National Botanical Institute, Pretoria.
END OT TRANSCRIPT FROM AI
Gemini
MY QUESTION
Describe the leaf-form and growth-form of Jasminum streptopus in Pondoland. Supply full references.
ANSWER FROM GEMINI
Growth-Form
In the coastal, scarp, and gallery forests of Pondoland (within the Pondoland Centre of Endemism), Jasminum streptopus E.Mey. typically exhibits the following habit:
Habit: A woody scrambling shrub or evergreen liana (climber), often forming dense tangles in the forest understorey or trailing over boulders and riverbanks. In shaded forest interiors, it may grow as a lax, weak-stemmed shrub up to 1.5–3 m high; when support is available along forest margins or canopy gaps, it climbs up to 5 m or more.
Stems & Branchlets: Stems are slender, terete to weakly quadrangular when young, puberulous to glabrescent, with pale brown to greyish bark on older woody stems. Twigs are flexible and frequently arching or twining.
Leaf-Form
The foliar morphology of Jasminum streptopus in Pondoland is characterized by unifoliolate structure and diagnostic petiole curvature:
Arrangement: Opposite, simple (unifoliolate).
Petiole: Distinctively twisted, curved, or bent (the epithet streptopus derives from the Greek for “twisted foot”). The petiole measures roughly 4–10 mm in length and is puberulous; its articulation and torsional curvature facilitate scrambling over adjacent vegetation.
Lamina Shape: Ovate to elliptic or oblong-lanceolate, measuring approximately 30–70 mm in length and 15–35 mm in width.
Apex & Base: Apex is acute to distinctly acuminate, often terminating in a fine mucro; base is rounded, obtuse, or broadly cuneate.
Margin: Entire, slightly revolute in dried specimens or under exposed microclimates.
Texture & Indumentum: Subcoriaceous to chartaceous. The adaxial (upper) surface is dark glossy green and glabrous to sparsely puberulous along the midrib; the abaxial (lower) surface is paler green.
Venation & Domatia: Pinnate with 3–5 pairs of secondary veins looping near the margin (brochidodromous). Pocket-like or hairy tuft domatia are characteristically present in the axils of the primary lateral veins on the abaxial surface.
References
Meyer, E.H.F. (1838). Commentariorum de Plantis Africae Australioris. Vol. 1, Fasc. 2. Lipsiae: Leopoldum Voss, p. 224.
(Protologue and original description of Jasminum streptopus).
De Candolle, A.P. (1844). Prodromus Systematis Naturalis Regni Vegetabilis. Vol. 8. Paris: Fortin, Masson et Socios, p. 308.
(Systematic placement and diagnostic treatment of the species in Southern Africa).
Wright, C.H. (1906). Oleaceae. In: Thiselton-Dyer, W.T. (Ed.), Flora Capensis, Vol. 4, Sect. 1. London: Lovell Reeve & Co., pp. 479–482.
(Regional key, anatomical characterization, and distributional citations across Transkei and Natal).
Verdoorn, I.C. (1956). The Oleaceae of Southern Africa. Bothalia, 6(3): 549–639.
(Comprehensive taxonomic revision detailing leaf variation, domatia, petiole twisting, and ecology of Jasminum in Southern African forest systems).
Pooley, E. (1993). The Complete Field Guide to Trees of Natal, Zululand and Transkei. Durban: Natal Flora Publications Trust.
(Field observations on growth form, habitat, and foliage characteristics within the Transkei/Pondoland forest region).