Here are three specimens in a community pot grown from volcano seeds dispersed by Trava. Before division, leaves were looking rather like spoons. Spines are absent or very small. In fact what it appears as a normal spine consist mainly of fibers, which disintegrate as the leaf develops further. So what remains in the end is only very tiny. Plants grow in shade in my greenhouse, so I expect to become more compacted when exposed to dry air and full sun. First two picture show those juveniles. In contrast, last two pictures show another specimen of same age, which is a crossing between cerifera or glauca and a gracile form (small leaf blades on longer petioles, thin trunk, spines weak and almost parallel to petiole and slow growing). This specimen is quite different to the plants from Trava's seeds. It has more deeply divided leaves and considerably more pronounced spines.
