Lectori salutem Could anyone recommend a good identificaton book/fieldguide for the N-American plant genus Penstemon? Rolf R. van de Pavert Dealer in minor miracles Office: Home: Statistics Netherland Flora & Fauna Group Room 533 PO box 959 Meppelrade 13 2270 AZ Voorburg 2544 XL Den Haag The Netherlands The Netherlands RPVT at CBS.NL pavelaer at BART.NL