Invasive Alien Species
Species Name: Senna tora
- Family Name:
- Cassia tora L.
Cassia borneensis Miq.
- Uncertain, perhaps America now established in most tropical countries
- Herb or under-shrub up to 100 cm tall, foetid smelling. Stipules, 10-15 mm, falling early. Leaves alternate, with 3-pairs of leaflet; petiole 1-4 cm; a stalked gland between each of the 2 pairs of leaflets. Inflorescence in pairs on short peduncles, axillary, 1, 2 or 3 flowered; bract linear; calyx yellowish-green, unequally 5-lobed; petals 5, yellow, sub-equal; stamens usually 7, with 7 staminodes; ovary strongly curved at flowering. Fruit pod, linear, narrow, 10-15 cm long, containing 20-30 seeds; seeds glossy, rombhoidal, roughly cylindrical, obliquely truncate at both ends, the surface brown. This species is very closely related to Senna obtusifolia and is habitually similar to this species
- Invaded Habitat:
- Pasture, roadsides, waste places
- Throughout Indonesia
- Common throughout lower altitudes
- Backer , C. A. & R. C. Bakhuizen Van Den Brink. 1965. Flora of Java Vol I. N.V. P. Noordhoff. Groningen, Netherlands.
- Ding Hou, K. Larsen and S.S. Larsen. 1996. Caecalpiniaceae. Flora Malesiana.Vol. 12. Series I: Spermatophyta. Rijksherbariu/Hortus Botanicus, Leiden University
- Henty, E.E. and G.H. Pritchard. 1973. Weeds of New Guinea and Their Control. Botany Bulletin No. 7. Division of Botany, Department of Forests, Lae, Papua New Guinea.