Invasive Alien Species
Species Name: Jatropha curcas
- Family Name:
- Mexico and Central America, but it was introduce long ago in all tropical regions and some sub-tropical regions
- Shrub, succulent, often much branches, 150-300 cm tall. Stem thick, bark smooth, shiny, greenish brown, or yellowish grey, with much water juice; petiole 3.5-15 cm long. Leaf blades broadly ovate, from a cordate base, 3-5 angular or 3-5 lobed, 5-15 x 6-16 cm. Inflorescence sub-corymbose, peduncle up to 7 cm long; male flowers with ovate calyx lobes about 2 mm long; petals fused in the lower half, about 3 mm with re-curved apex, oblong, 7-8 mm long, inside near the centre with a group of long white hairs; outer stamen shorter than the inner ones; stigma sagitatte, shortly 2 lobes; female flowers with about 4 mm long calyx calyx lobes, petal about 6 mm long, staminodes present, stigma bifid. Fruit broadly ellipsoid, 2.5-3 x 2 cm; seeds about 1.7 cm long, black, with minute caruncle.
- Invaded Habitat:
- Waste places, cemetery, rocky slopes, dry river beds.
- In Java an early introduction, cultivated as living fence, recently J. curcas is planted in large scale as it is very popular as plant for producing bio-diesel. It is cultivated throughout Indonesia, escape from cultivations, and naturalize
- It grows on well-adapted to low fertility, from sea level up to 1700 m altitude. Flowers throughout the year
- Backer , C. A. & R. C. Bakhuizen Van Den Brink. 1965. Flora of Java Vol I. N.V. P. Noordhoff. Groningen, Netherlands.
- Mannetje,L. and R.M. Jones (eds). 1992. PROSEA. Plant Resources of South East Asia No. 4. Forages. Prosea Foundation, Bogor, Indonesia and Pudoc-DLO, Wageningen, the Netherlands.
- Voogd, C.N.A. de. 1950. Tanaman Apakah Ini Gerangan. Buku kecil untuk taman berkelana. N.V. Uitgeverij W. van Hoeve, Bandung’s Gravenhage (translated by Soetan Sanif)