Viscum obovatum Harv.

First published in W.H.Harvey & auct. suc. (eds.), Fl. Cap. 2: 579 (1862)
This species is accepted
The native range of this species is S. Mozambique to S. Africa. It is a hemiparasitic epiphyte and grows primarily in the subtropical biome.

Descriptions

Extinction risk predictions for the world's flowering plants to support their conservation (2024). Bachman, S.P., Brown, M.J.M., Leão, T.C.C., Lughadha, E.N., Walker, B.E. https://nph.onlinelibrary.wiley.com/doi/full/10.1111/nph.19592

Conservation
Predicted extinction risk: not threatened. Confidence: confident
[AERP]

Flora Zambesiaca. Vol. 9, Part 3. Polygonaceae-Myriaceae. Pope GV, Polhill RM, Martins ES. 2006.

Type
Type from South Africa (KwaZulu-Natal).
Morphology Reproductive morphology Inflorescences Bracts
Bracteal cups sessile, the central flower staminate and the lateral flowers pistillate, or often with all flowers the same sex
Morphology Reproductive morphology Flowers Gynoecium Style
Style minute but distinct; stigma not expanded
Morphology Reproductive morphology Fruits
Berries sessile, dull orange, ellipsoid, 3–4 mm high, tuberculate when young, less so at maturity, apically truncated Berries sessile, dull orange, ellipsoid, 3–4 mm high, tuberculate when young, less so at maturity, apically truncated.
Ecology
Coastal forest remnants, coastal bushland and riverine or swamp associations; below 200 m; on various hosts; flowering probably throughout the year. Said to be deciduous on Ilha da Inhaca, see Mogg, loc. cit. (1969).
Note
The species is most easily confused with V. tuberculatum, from which it is distinguishable by its smaller (3–4 mm high), dull orange fruit and generally smaller leaves. The species are evolutionarily separated by their unusually different chromosome numbers, n=12 in V. obovatum and n=23 in V. tuberculatum.
Distribution
MOZ GI, MOZ M Also in South Africa, south to the Eastern Cape, and in Swaziland. Mozambique
Morphology General Habit
Leafy, monoecious shrubs of moderate size, <0.5 m high, forming dense, rounded clusters; internodes of distal branches rounded, relatively short, 8–15(20) × 2 mm, with often conspicuously swollen nodes. Leafy, monoecious shrubs of moderate size, <0.5 m high, forming dense, rounded clusters; internodes of distal branches rounded, relatively short, 8–15(20) × 2 mm, with often conspicuously swollen nodes
Morphology Leaves
Leaves 12–17 × 8–12 mm, mostly obovate-rounded, rounded apically, cuneate into the base; petiole 2–3 mm long. Leaves 12–17 × 8–12 mm, mostly obovate-rounded, rounded apically, cuneate into the base; petiole 2–3 mm long
Morphology Reproductive morphology Flowers
Bracteal cups sessile, the central flower staminate and the lateral flowers pistillate, or often with all flowers the same sex.
Morphology Reproductive morphology Flowers Gynoecium Pistil
Style minute but distinct; stigma not expanded.
Morphology Reproductive morphology Flowers Perianth
Ring scar left by perianth only slightly raised, 1.5 mm in diameter. Ring scar left by perianth only slightly raised, 1.5 mm in diameter.
[FZ]

Sources

  • Angiosperm Extinction Risk Predictions v1

    • Angiosperm Threat Predictions
    • http://creativecommons.org/licenses/by/4.0
  • Flora Zambesiaca

    • Flora Zambesiaca
    • http://creativecommons.org/licenses/by-nc-sa/3.0
  • Herbarium Catalogue Specimens

    • Digital Image © Board of Trustees, RBG Kew http://creativecommons.org/licenses/by/3.0/
  • Kew Backbone Distributions

    • The International Plant Names Index and World Checklist of Vascular Plants 2024. Published on the Internet at http://www.ipni.org and https://powo.science.kew.org/
    • © Copyright 2023 World Checklist of Vascular Plants. http://creativecommons.org/licenses/by/3.0
  • Kew Names and Taxonomic Backbone

    • The International Plant Names Index and World Checklist of Vascular Plants 2024. Published on the Internet at http://www.ipni.org and https://powo.science.kew.org/
    • © Copyright 2023 International Plant Names Index and World Checklist of Vascular Plants. http://creativecommons.org/licenses/by/3.0