English: Witchweed.
Synonym: Striga lutea.
Names: Rumput siku-siku; Jarum emas.
Region: Africa, Asia.
Botany: herbs, ± 60 cm high; parasitic, attacking agricultural crops, corn, sorghum, sugarcane; white roots, attached to host roots; leaves green above the ground, sparsely covered with coarse, short, white, bulbous-based hairs; leaves opposite, narrowly lanceolate; flowers small, in summer and fall, sessile, axillary, two-lipped corolla, loose spikes, red, orange, yellow; swollen seed pods, containing thousands of dust like seeds; underground stems white, round, with scale-like leaves, turning blue when exposed to air; roots succulent, round, without root hairs,attached to a host species root system.