Many many many many many (get the picture?) herbaceous plants have different color, size and shape leaves on the same plant, depending on where they are located on the stem, time of year or stage of maturity of the plant. That's where the "zero to five lobes" comes from in the Jepson Manual, for instance. I don't see any discrepancies, and in this case, one can only use leaf shape and color as a reinforcing guide (not a definitive characteristic). Personally, I am not very knowledgeable with this particular type of plant, and I can't give an opinion as to which species is correct.
Of course, it would be silly to expect that every square foot of earth in the USA has been botanically scoured for every bit of plant life. If a plant is officially recorded as extant in a county, it is surely possible that it exists in an adjacent county. In addition, plant life is dynamic: they have the ability to move around the landscape over they years by seed as they search for other favorable places to grow. What may have been officially recorded 15 years ago, may or may not be true today, but the information is still very relevant.
