Invasive Alien Species
Species Name: Amaranthus hybridus
- Family Name:
Amaranthus cruentus L.
A. paniculatus L.
A. speciosus Sims
- Unknown, introduce into Malesia very long ago
- Annual, erect, often much branched in upper half.,50-300 cm tall. Stem obtus-angular, strongly suffused with purple; younger parts more or less densely clothed with short hairs or almost glabrous. Leaves ovate-oblong-lanceolate with sharp base, often with wavy margins, dark green above, strongly tinged with purple beneath, nerves beneath or on both sides more or less hairy, larger one 10-30 x 3-12 cm. Inflorescence crowded, panicles or spikes terminal and also frequently also in the higher leaf axils, erect or at the top more or less drooping, 15-40 cm long; flowers dark purple, 5-merous; bracts and bracteoles long-pointed distinctly longer than perianth; tepals oblong 3-5, rarely 4; filaments white, free, equaling perianth or slightly longer; anthers 2-celled, stigmas 2-4, sessile, filiform. Seed dark brown, shining, 1 mm diameter
- Invaded Habitat:
- Weeds of garlic and potato crops. Sometimes run wild in fields and waste places
- Sumatra, Java, and Nusa Tenggara as far as known
- In Java occurs in 5-1300 m alt., in dry areas, sometimes cultivated as an ornamental
- Backer , C. A. & R. C. Bakhuizen Van Den Brink. 1965. Flora of Java. N.V. P. Noordhoff. Groningen, Netherlands
- Dahlan, S. and Y. Sabri. 1988. Jenis-Jenis Gulma yang Terserang Nematoda Bengkak Akar pada Kebun Kentang di Daerah Koto Baru Kabupaten Tanah Datar, sumatera Barat. Dalam Prosiding Konferensi HIGI IX.
- Wijayanto, M., Rosilawati, and J. Moenandir. 1988. Critical Period of Garlic for The Presence of Weeds. Dalam Prosiding Konferensi HIGI IX.