Re: Rudbeckias and Coreopsis

> Now, I have a mystery plant - tall (20") graceful stems.
> Flowers have long yellow petals with 'sprinkles' of black and brown
> in centre. Has to be either Coreopsis or Rudbeckia? 
> 
> How to tell difference between Rudbeckia hirta and Rudbeckia fulgida?  

These two are difficult to tell apart.  R. hirta is lacking a pappus,
but has a elongated, acute styles.  R. fulgida has a pappus and a short
crown with short, blunt style branches. 

So in other words, not much.  Look at the style (the part of the flower
between ovary and the stigma (that sticky part)) and see how long they
are...

For what it's worth, R. fulgida is considered rare around here too,
but R. hirta is everywhere.

Chris
zone 5b USDA, E. Central Illinois

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