To the original question - whether salad is pruneable - you need to specify what you mean by pruning it. Indeed, it doesn't look anything like Phoenix or Washingtonia palm. Rather, it looks more like a bunch of medieval torture devices growing out of the ground. Each one is actually a leaf, taller than a human and covered with barbs / spines all over the petiole. Yes, you can prune individual leaves (if you like pain, that is) but you can't prune the stem, as previous responders said already. Salak fruit is delicious though!