THIS IS A DRAFT
The species account below is an early version, drafted around 2003. It has been provided here to aid understanding, but please be aware it may not fully tally with the up-to-date map and statistics shown below.
Bidens tripartita
Trifid Bur-marigold
Species Details
Trifid Bur-marigold is a native annual of marshy areas by the sides of lakes, ponds, pits, rivers and canals. There are occasional records from throughout the southern and eastern parts of the county, from Hollingwood Lock (SK4174) in the north, through Ogston Reservoir (SK3760), to Marston-on-Dove (SK2328) and Sawley (SK4631) in the south. It can still be found growing at Sandiacre (SK4835,4836) as mentioned in Linton's Flora. Although generally absent from northern and western Derbyshire, there are a cluster of records around Toddbrook (SK0080 v.c.58) and Combs Reservoirs (SK0379).