Bischofia javanica Blume

First published in Bijdr. Fl. Ned. Ind.: 1168 (1827)
This species is accepted
The native range of this species is Tropical & Subtropical Asia to Pacific. It is a tree and grows primarily in the wet tropical biome. It is used as animal food, a poison, a medicine and invertebrate food, has environmental uses and social uses and for fuel and food.

Descriptions

Euphorbiaceae, A. R.-Smith. Flora of Tropical East Africa. 1987

Morphology General Habit
Tree 4–15 m. tall, with a narrow crown and drooping branches; bark brown, slightly scaly; wood very soft.
Morphology Twigs
Twigs sparingly lenticellate; shoots, petioles and petiolules glabrous.
Morphology Leaves
Petioles 9–17 cm. long, pulvinate at the base; median petiolules 3.5–5 cm. long, laterals 0.5–2 cm. long; leaflets 3(–5), elliptic-ovate to elliptic-obovate, (5–)7–14 cm. long, 3–9 cm. wide, the laterals slightly asymmetrical and smaller than the terminal, acutely or subacutely and often abruptly acuminate at apex, cuneate or rounded at base, crenate-serrate, firmly membranaceous to chartaceous, lateral nerves 7–9(–11), not or scarcely prominent above, slightly so beneath, weakly brochidodromous and reticulate towards the margin, tertiary nerves reticulate, glabrous above, sparingly puberulous at least along the midrib and otherwise ± glabrous beneath, dark green and somewhat shiny above, paler and duller beneath.
Morphology Leaves Stipules
Stipules lanceolate to triangular-lanceolate, 0.7–1 (–2) cm. long, acutely acuminate, entire, subglabrous, brown.
sex Male
Male panicles (9–)11–14(–20) cm. long; peduncles ± 2–2.5 cm. long; axis and rhachides sparingly minutely puberulous; bracts ovate, 1–2 mm. long, acute, brown. Male flowers:pedicels 2 mm. long, slender, articulate 1/3 up from the base, pubescent below the articulation, glabrous above it; sepals broadly elliptic, 2 mm. long, rounded, ciliolate, yellowish green; stamens 1.1 mm. long, anthers 0.9 mm. long and wide, yellow; pistillode 0.5 mm. high, 0.7 mm. across.
Morphology Reproductive morphology Inflorescences
Female panicles somewhat larger (up to 27 cm. long), with the peduncles up to 7 cm. long. Male panicles (9–)11–14(–20) cm. long; peduncles ± 2–2.5 cm. long; axis and rhachides sparingly minutely puberulous; bracts ovate, 1–2 mm. long, acute, brown.
sex Female
Female panicles somewhat larger (up to 27 cm. long), with the peduncles up to 7 cm. long. Female flowers:pedicels (1–)2–4 mm. long, articulate, pubescent throughout, extending to 2 cm. long in fruit; sepals ovate-lanceolate to oblong-lanceolate, 1.5–2 mm. long, acute, subentire, sparingly puberulous without at the base, otherwise glabrous, pale green with white margins; ovary subglobose, 1–1.5 mm. in diameter, ± smooth, glabrous; style-arms (4–)5–6 mm. long, stigmas slightly papillose.
Morphology Reproductive morphology Flowers
Female flowers:pedicels (1–)2–4 mm. long, articulate, pubescent throughout, extending to 2 cm. long in fruit; sepals ovate-lanceolate to oblong-lanceolate, 1.5–2 mm. long, acute, subentire, sparingly puberulous without at the base, otherwise glabrous, pale green with white margins; ovary subglobose, 1–1.5 mm. in diameter, ± smooth, glabrous; style-arms (4–)5–6 mm. long, stigmas slightly papillose. Male flowers:pedicels 2 mm. long, slender, articulate 1/3 up from the base, pubescent below the articulation, glabrous above it; sepals broadly elliptic, 2 mm. long, rounded, ciliolate, yellowish green; stamens 1.1 mm. long, anthers 0.9 mm. long and wide, yellow; pistillode 0.5 mm. high, 0.7 mm. across.
Morphology Reproductive morphology Fruits
Fruit 5–6 mm. in diameter, ± smooth.
Morphology Reproductive morphology Seeds
Seeds 3 mm. long, 1.5 mm. wide, smooth, somewhat shiny, yellowish brown.
Habitat
Cultivated in gardens and arboreta, becoming naturalized as an understorey tree in evergreen forest; 1550–1770 m.
Distribution
native from S. India eastwards to S. China and the Cook Is., occasionally cultivated elsewhere K4 K5
[FTEA]

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]

IUCN Red List of Threatened Species https://www.iucnredlist.org/species/61956399/61956472

Conservation
LC - least concern
[IUCN]

Bernal, R., Gradstein, S.R. & Celis, M. (eds.). 2015. Catálogo de plantas y líquenes de Colombia. Instituto de Ciencias Naturales, Universidad Nacional de Colombia, Bogotá. http://catalogoplantasdecolombia.unal.edu.co

Distribution
Cultivada en Colombia; Alt. 1000 - 2200 m.; Andes.
Morphology General Habit
Árbol
[CPLC]

Distribution
Biogeografic region: Andean. Elevation range: 1000–2200 m a.s.l. Cultivated in Colombia. Colombian departments: Antioquia.
Habit
Tree.
Conservation
IUCN Red List Assessment (2021): LC.
Ecology
Habitat according IUCN Habitats Classification: artificial - terrestrial.
[UPFC]

Uses

Use Animal Food
Used as animal food.
Use Environmental
Environmental uses.
Use Fuel
Used for fuels.
Use Gene Sources
Used as gene sources.
Use Food
Used for food.
Use Invertebrate Food
Used as invertebrate food.
Use Materials
Used as material.
Use Medicines
Medical uses.
Use Poisons
Poisons.
Use Social
Social uses.
[UPFC]

Common Names

unknown
akagi, ka-tang, koka, toog., yagine

Sources

  • Angiosperm Extinction Risk Predictions v1

    • Angiosperm Threat Predictions
    • http://creativecommons.org/licenses/by/4.0
  • Catálogo de Plantas y Líquenes de Colombia

    • http://creativecommons.org/licenses/by-nc-sa/3.0
  • EBC Common Names

    • Common Names from Kew's Economic Botany Collection https://www.kew.org/science/collections-and-resources/collections/economic-botany-collection
  • 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/
  • IUCN Categories

    • IUCN Red List of Threatened Species
    • http://creativecommons.org/licenses/by-nc-sa/3.0
  • Kew Backbone Distributions

    • The International Plant Names Index and World Checklist of Vascular Plants 2025. 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 2025. 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
  • Useful Plants and Fungi of Colombia

    • http://creativecommons.org/licenses/by-nc-sa/3.0