Uli, Some amorphs have a distinctive leaf or petiole and can be identified when not in flower (especially if the possible choices are restricted) but in general I think it's very hard without inflorescences. (With inflorescences, there are people over on the aroid list who can identify any of them practically immediately.) The variation within a single species can be great, too - there are a number of cultivars of konjac, including dwarf and giant forms and some with distinctive petioles. I can't find A. suaveolens on the species list on MoBot's Tropicos or the aroid.org amorphophallus list ... A. johnsonii is, but only pictures of the infloresence. If they all turn out to be konjac, you might try one outdoors - konjac is very hardy, several people in the US growing it in zone 5 (-20 F/-28 C) areas. Mine tolerate some nasty wet winters. Steve _______________________________________________ pbs mailing list pbs@lists.ibiblio.org http://www.pacificbulbsociety.org/list.php