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A single trunk divides into numerous branches at the top, each branch bearing a rosette of narrow grey-green leaves. Old leaves are not retained on the smooth, but ridged trunk with sharp edges to each scale. The inflorescence is divided into three to five racemes of large tubular yellow flowers. The flowers are edible with the flower buds said to have a similar flavour to asparagus.
Left: In a young plant the leaves are arranged in vertical rows and only with maturity, spiral to form a rosette.
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