Wow, that came out of left field, huh?!! It is a monocot, at least
I was interested to see that while the name does seem to be accepted by Kew etc as:
Lachnanthes caroliniana (Lam.) Dandy (family Haemodoraceae) , original publication details: J. Bot. 70: 329 1932........
this site
http://plants.usda.gov/core/profile?symbol=LACA5 and
http://www.wildflower.org/plants/result.php?id_plant=LACA5 say that the name should be caroliana not caroliniana
The second of those sites says :
"USDA Symbol: LACA5
USDA Native Status: L48 (N), CAN (N)
Found mostly in coastal environments from Louisiana east to Florida and Cuba and north to Nova Scotia, where it is listed as a threatened species by Canadas Species at Risk Act, Carolina Redroot has grass-like foliage and creamy yellow summer blooms that blend well with other plants native to the eastern coastal plains. It tends to be less common from Tennessee and Maryland northward and is listed as threatened, endangered, or of special concern in several US states.
Its seeds are favorites of Sandhill Cranes. "
Fascinating!!
Thanks, Diane, I would never have known that without your query - I just LOVE the way new things come to my notice here!