Botanical Name: Albizia odoratissima
Synonyms: Mimosa odoratissima L.F
Common Name: Ceylone rose wood, Black siris
Seed collection period: Apr- May
Seed longevity: 1 year
Albizia odoratissima is a medium sized tree to 22 m tall, diameter 120- 150 cm, and a short trunk. Bark dark grey to light brown with horizontal lenticels. Crown spreading, relatively dense with drooping foliage. Branching habit uniform, but irregularities occur when the tree is damaged. Leaves dark green, bipinnately compound; rachis 7-20 cm long, bearing 1 lower gland 1-2 cm above the base, and 1 upper gland between the 2 distal pairs of pinnae; pinnae 3-5 pairs, 7-14 cm long; per pinna, 10- 16(-20) pairs of oblong to obovate leaflets, 1.1-3.5 cm x 0.6-1.2 cm. Inflorescence clustered into hairy terminal panicles 8-20 cm long; flowers 10-15 per head, dimorphic, pale yellowish white, fragrant.
A. odoratissima is hermaphroditic and deciduous with a short leafless period from December to February. New leaves normally appear before the old ones have completely fallen, (March-April in northern India). Flowers appear from March to June. Fruits appear in early August and start ripening at the end of October.