Please do not endanger them further by collecting plants from the wild, and be careful not to damage their habitat when viewing or photographing them in the wild. The only acceptable way to propagate plants from the wild is by collecting seed, and this should only be done in moderation. Many of the native irises are difficult to transplant and difficult to maintain if they survive transplantation. Sometimes starting from seed is actually easier. The native irises that can be readily grown in the garden are available from a number of commercial suppliers .
Seeds are also available from seed exchange programs .
Please use these sources rather than collecting plants from the wild. Drop me a line.