Toxicodendron rydbergii

Toxicodendron rydbergii (Small ex Rydb.) Greene. Engl.: western poison ivy, Rydberg's poison ivy. Suom.: myrkkysumakki. Sven.: giftsumak. Bot. syn.: Rhus radicans L. var. rydbergii (Small ex Rydb.) Rehd., Rhus radicans L. var. vulgaris (Michx.) DC., Toxicodendron desertorum Lunell.

Photo: Toxicodendron rydbergii 4.

Photo: Toxicodendron rydbergii 4. Reddening leaves. Helsinki bot.g., (Kump.), Finland. Planted. 2006-09-09.

Photo: Toxicodendron rydbergii 5.

Photo: Toxicodendron rydbergii 5. Leaf. Helsinki bot.g., (Kump.), Finland. Planted. 2006-09-09.

Photo: Toxicodendron rydbergii 2.

Photo: Toxicodendron rydbergii 2. Leaf. Helsinki bot.g., (Kump.), Finland. Planted. 2004-09-17.

Photo: Toxicodendron rydbergii 3.

Photo: Toxicodendron rydbergii 3. Fully grown green and new small brown leaves. Helsinki bot.g., (Kump.), Finland. Planted. 2004-09-17.

Photo: Toxicodendron rydbergii 1.

Photo: Toxicodendron rydbergii 1. Leaf. Helsinki bot.g., (Kump.), Finland. Planted. 2002-07-26.

Photo: Toxicodendron rydbergii.

Photo: Toxicodendron rydbergii. Leaves. Helsinki bot.g., (Kump.), Finland. Planted. 2002-07-26.