Annual herb, parasite, 0.03-0.12(-0.30?) m high; stem scabrous. Leaves cauline, scalelike. Inflorescence a dense spike; flowers small. Calyx: lobes shortly obtuse. Flowering time Mar.-June.
Herb, up to 150 mm tall, uniformly dwarf and tufted. Leaves squamiform. Spike dense. Very close to A. orobanchoides. Flowers yellow or yellowish orange.