Source |
Botanic Gardens Conservation International (BGCI) (12) |
Type |
W - Webpage (410) |
Peer Review |
3 - Low (686) |
Audience |
G - Generalist (1722) |
Notes |
Its largest populations are centred in Illinois, where the numbers have dropped precipitously over the past few years, and it is now classified as federally threatened. |
Entered by: Susana Fernandez, 6/2009