Invasive Alien Species
Species Name: Sida acuta
- Family Name:
- Sida retusa auct. non L.
- Central America, now pan-tropic and sub-tropics.
- An erect perennial under-shrub about 60 cm tall. Stem branched, woody; petioles short, stipules linear. Leaves alternate, lanceolate, narrow, 5-8 x 6-12 mm. Inflorescence axillary, solitary, on short jointed, hairy, slender stalk; calyx with 5 green sepals; corolla 5, yellow, 1.33 cm in diameter, petals joint at the base; staminal tube divided into many filaments bearing anthers; style divided into six branches. Fruit a dry dehiscent capsule breaking into six parts; seeds 3-angled, brown, hairy.
- Invaded Habitat:
- Road sides, waste places, lawns, shifting cultivations, teak forests, plantation crops.
- Pan-tropical, throughout Indonesia.
- Flowering in the morning up to 13.00 a.m. Found at 0.5-1500 alt.
- Backer , C. A. & R. C. Bakhuizen Van Den Brink. 1965. Flora of Java. N.V. P. Noordhoff. Groningen, Netherlands.
- Barnes, D. E. and L. G. Chan. 1990. Common Weeds of Malaysia and Their Control. Ancom Berhad. Persiaran Selangor. 40000 Shah Alam, Malaysia
- Tjitrosoedirdjo, S.S., Mahfudz, S. Tjitrosemito &. M.A. Chozin. 2004. Study of Weed Dynamic in Some Cropping Systems in Forest Margins of Lore Lindu National Park. Jurnal Gulma Tropika 2(1): 21-26