Bignoniaceae
Oroxylum

Oroxylum indicum (L.) Kurz

First published in Forest Fl. Burma 2: 237 (1877)
This species is accepted
The native range of this species is S. China to Tropical Asia. It is a tree and grows primarily in the wet tropical 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]

Bignoniaceae, Sally Bidgood, Bernard Verdcourt, Kaj Vollesen. Cobaeaceae, Bernard Verdcourt. Flora of Tropical East Africa. 2006

Morphology General Habit
Small tree 5–8(–13) m tall with thick bark and large corky lenticels.
Morphology Leaves
Leaves large, 0.9–1.8 m long, 2–3-pinnate.
Morphology Leaves Leaflets
Leaflets ovate-elliptic, (7–)9–16 × 3–9 cm, long, obtuse to cordate at the base, acuminate at the apex.
Morphology Reproductive morphology Inflorescences
Inflorescences on thick branch-like peduncles, persistent, ± 35 cm long.
Morphology Reproductive morphology Flowers Pedicel
Pedicels 3–7 cm long.
Morphology Reproductive morphology Flowers Calyx
Calyx blackish purple, 3–4.5 cm long.
Morphology Reproductive morphology Flowers Corolla
Corolla deep maroon to reddish purple outside, yellowish or pinkish inside; tube 5–7 cm long, 3 cm wide at throat; lobes obovate, 4–6 × 3–4.5 cm.
Morphology Reproductive morphology Fruits
Fruit sword-like, 50–75(–100) × 7–9 cm, flat, narrowed to both ends; valves ± woody with mid- and marginal ridges.
Morphology Reproductive morphology Seeds
Seeds elliptic, ± 6.5 × 3 cm including the very thin membranous wing.
Note
Native of India, Ceylon, Southeast Asia, Indonesia and the Philippines. Known from a single specimen only in the Migombani Gardens, Zanzibar. We have seen no material and do not know if this tree is still extant.
[FTEA]

Sources

  • Angiosperm Extinction Risk Predictions v1

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

  • Flora of Tropical East Africa

    • Flora of Tropical East Africa
    • http://creativecommons.org/licenses/by-nc-sa/3.0

  • Herbarium Catalogue Specimens

    • 'The Herbarium Catalogue, Royal Botanic Gardens, Kew. Published on the Internet http://www.kew.org/herbcat [accessed on Day Month Year]'. Please enter the date on which you consulted the system.
    • 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

  • Kew Science Photographs

    • Copyright applied to individual images