Toxic ornamental plants that everybody have to be aware of.
Alpenrose (Rhododendron ferrugineum)
This ornamental plant is moderately toxic, containing arbutine, aricoline and rhodoxanthine, and can cause vomiting, and difficulties of the digestive, nervous, respiratory and circulatory systems. Alpenrose, snow-rose, or rusty-leaved alpenrose is an evergreen shrub that grows just above the tree line in the Alps, Pyrenees, Jura and Apennines, on acid soils
Common Rhododendron (Rhododendron ponticum)
This ornamental plant is poisonous. Xenophon mentions that Greek soldiers in Asia Minor were poisoned by honey made from the flowers of R. ponticum. Common Rhododendron or Pontic Rhododendron is a species of Rhododendron native to Europe and Asia.
All parts of these Azaleas are poisonous and cause nausea, vomiting, depression, breathing difficulties and coma. Azaleas are the most common toxic plant that dogs ingest. Some species are poisonous to grazing animals. These Rhododendrons have a toxin called grayanotoxin in their pollen and nectar. People have been known to become ill from eating honey made by bees feeding on rhododendron and azalea flowers.
Mother of Millions (Kalanchoe tubiflora)
Who would think that this lovely plant is poisonous? This plant is commonly called Chandelier Plant, Mother of Millions, and Mother of Thousands. This plant is a succulent plant native to Madagascar. This plant contains bufadienolide cardiac glycosides which can cause cardiac poisoning, particularly in grazing animals. In 1997, 125 head of cattle died after eating mother-of-millions on a traveling stock reserve near Moree, New South Wales.
Miracle Leaf (Kalanchoe pinnata)
Like Mother of Millions, Miracle Leaf has been found to contain bufadienolide cardiac glycosides. These can cause cardiac poisoning, particularly in grazing animals. Miracle Leaf also known as Air Plant, Life Plant and the Goethe Plantis a succulent plant native to Madagascar. It is also a popular houseplant and has become naturalized in temperate regions of Asia, the Pacific and Caribbean.