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Young plants have upright stems, but as they get older, they gradually start to creep or trail.
![Young plants](https://assets.shortpedia.com/uploads/2023/01/12/1673520442.webp?tr=w-1200,h-600,cm-pad_resize,bg-F3F3F3)
Young plants have upright stems, but as they get older, they gradually start to creep or trail. Every tiny stem produces a few thin, thorny branches that are likely 1.5 to 2.5 mitres long.