The intense color of yellow Papaver nudicaule flowers is conferred by the presence of nudicaulins, a group of alkaloids with a unique pentacyclic skeleton composed of an indole ring and a polyphenolic moiety. Petals from eight different Papaveraceae species composed of different color varieties were probed for the presence of nudicaulins. In addition to their occurrence in yellow P. nudicaule f...

Liver injury appears to be associated with the use of herbal products and wild plants.This paper presents what is to our knowledge the first case report in the world of acute liver toxicity caused by Papaver Rhoease. A 17-year- old woman from eastern Turkey ingested Papaver Rhoease which is known as "poppy flower" among the local inhabitants. Her liver function tests were initially 10- 15 fold ...

A recent study of the expression of floral organ identity genes in buttercups, poppies and their relatives has shed light on the evolutionary origin of petals.

Evidence is provided which shows that there is a wider variation in karyotypes of Rosa acicularis subspecies seen within their ranges in North America (Rosa acicularis Lindl. subsp. sayi (Schwein.) W.H. Lewis and the Eurasian species (Rosa acicularis Lindl. subsp. acicularis) than was originally presumed. It is proposed that the evolution and distribution of these karyotypes into two distinct s...