In the 1970s author Dolly Freed wrote a book titled "'Possum Living". She suggests that if you look professional, carry a clipboard and wear a lab coat, you can do almost anything and no one will question your actions. Note: DO NOT try to download the free PDF version as it contains a security warning; if you want to read the book, buy it from a reputable source.
My husband added a bit of information and suggested that wearing khaki pants and a dark green golf shirt, driving an unmarked white pickup truck make you look like you know what you are doing.
In some states it may be illegal to harvest/collect/dig/disturb wildflowers, so please check your local laws and ordinances before collecting seed, but I'm pretty sure the Chicory is not in any danger of becoming extinct.
