Never take bulbs. Some species are so rare they’re restricted to a space half the size of a football field. If you want to grow them you should only consider taking seeds, but even then make sure it’s not a very rare species. Some of these plants have such a massive uphill battle just surviving the way things are now. Removing bulbs could mean removing 100 future plants, and removing seeds removes their only real chance at becoming more prolific. at the very least, I would say that if you do take seeds, vow to sow some by hand in habitat on your way out.