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Joannesia princeps
Euphorbiaceae FAMILY Vulnerable

Joannesia princeps

Joannesia princeps

Edibility
1/5
Medicinal
2/5

Safety & Hazards

The oil obtained from the seed is strongly purgative and can be toxic[1]. The latex in the bark is toxic[2].

Cultivation Details

HabitDeciduous Tree
GrowthFast

Prefers a sunny position[3]. Young plants grow away quickly and may easily reach a height of 6 metres within 2 years[3].

Propagation

Seed - does not require pre-treatment[3]. It is best sown as soon as it is ripe in individual containers in a semi-shaded position, covered with 5mm of soil[3]. A good rate of germination is normally obtained within 20 - 30 days[3]. Seedlings normally grow away quickly and are ready for planting out when about 4 months old[3]. Cite as: Tropical Plants Database, Ken Fern. tropical.theferns.info. 2026-02-20. <tropical.theferns.info/viewtropical.php?id=Joannesia+princeps>

Pollinators

Data unavailable

References

  1. [1]Flowers of India — http://www.flowersofindia.net/ ↩︎A wed site of native Indian plants, plus cultivated and naturalized species. It has good quality photos and terse details on more than 3,000 species and cultivars.
  2. [2]Medicinal Plants of the Guianas — DeFilipps, R. A.; Maina, S. L.; & Crepin, J. · Smithsonian Museum · http://botany.si.edu/bdg/medicinal/index.html ↩︎A down-loadable PDF document of a book in pre-publication awaiting illustration. An excellent, if rather terse, guide to the traditional medicinal uses of the plants of the region
  3. [3]Brazilian Trees. Volume 1. 4th Edition. — Lorenzi. H. · Instituto Plantarum De Estudos Da Flora; Brazil. · 2002 · ISBN 85-86714-17-8 ↩︎Information on 350 species of Brazilian trees. Stunning photographs of each species, brief details on the plant, its uses and how to grow it from seed. A superb work, with the minor irritation that the translation from Portuguese is not of the best.
  4. [4]Mansfeld's Database of Agricultural and Horticultural Plants — http://mansfeld.ipk-gatersleben.de/pls/htmldb_pgrc/f?p=185:3:4292127278597336 ↩︎Terse details of a huge range of useful plants.
  5. [5]IUCN Red List of Threatened Species — http://www.iucnredlist.org/ ↩︎A list of plants under threat and facing possible extinction, usually with brief details of the threats and information on habitat.
  6. [6]Dictionary of Economic Plants. — Uphof. J. C. Th. · Weinheim · 1959 · ISBN - ↩︎An excellent and very comprehensive guide but it only gives very short descriptions of the uses without any details of how to utilize the plants. Not for the casual reader.
  7. [7]Medicinal Plants of Brazil — Mors W.B.; Rizzini C.T.; Pereira N.A. · Reference Publications; Michigan. · 2000 · ISBN 0-917256-42-5 ↩︎An extremely concise book, listing approximately 1,500 species and varieties of plants with their botanical name, common name in Brazil, regions in Brazil where the plant is found, a brief list of uses and any medically active compounds in the plant.
  8. [8]Oil Yielding Plants — Botanical Survey of India. · 2004 · http://mnes.nic.in/list/oil-plants.pdf ↩︎A PDF downloaded from the Internet. Very terse details about the applications of oil obtained from over 300 species of plants.
  9. [PFAF]Plants for a Future — pfaf.org ↩︎