Herb 30-50cm, stem round, leaf : denticulate, thick, yellow sap, green, flower : purple or repanicle shabed stamens, seed : small black(Indonesia) Succulent shrubby perennial herb. Leaves arranged spirally in a rosette, linear to lanceleolate or triangular, long 30-50cm by 5-10cm wide with the thickness of 1-2cmThe upper surface is concave, gray-green, often with reddish tinge. The leaf margin has a pale pink edge and 2mm long pale teeth. Inflorescence a pseudo-lateral, simple or branches, long-cylindrical raceme. Flowers bisexual, protandrous, pedicullate, usually connate into a tube. Fruit loculicidal capsule, many seeded. Seeds elongate and ovoid, grey or black.(Laos) A perennial shrub, with very short stem, taproot 5-10cm long with many secondary roots in the upper soil, freely suckering and forming dense groups; leaves about 16, erect to slightly spreading, narrowly triangular, 40-50cm x 6-7cm, upper surface grey-green to pale green with few to many spots, lower surface generally lighter, margin with firm deltoid pale teeth of 2mm; inflorescence simple or sparsely branched, 60- 100cm tall, racemes 30-40cm x 5-6cm, densely flowered; flowers with yellow, orange or red perianth, stiffly pendulous, anthers and stigma exserted. The long history of cultivation has led to various selections that are sometimes given formal ranking.(Malaysia) A perennial shrub, with very short stem, tap root 5-10cm long with many secondary roots in the upper soil, freely suckering and forming dense groups; leaves about 16, erect to slightly spreading, narrowly triangular, margin with firm deltoid pale teeth of 2mm; inflorescence simple or sparsely branched, racemes 30-40cm x 5-6cm, densely flowered; flowers with yellow, orange or red perianth, stiffly pendulous, anthers and stigma exerted. (Philippines)