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DescriptionShrub-like perennial herb, up to 1.5 m tall, more or less woody at the base. Stems with slender axillary spines. Leaves opposite, ovate-lanceolate, up to 5 × 2 cm, tapering to a sharp point. Flowers axillary and terminal, yellow to orange; bracts narrowly ovate, tapering to a sharp spine-like tip.