A Walk in Fern Bluff Park
November 3, 2001- Page 7

Archives of previous walks in the park: 12 May 2007 05 May 2007; 28 April 2007, 21 April 2007, 14 April 2007,  1 April 2007 Easter Egg Hunt; 24 March 2007,  17 March 2007; Nov. 03, 2001; April 04, 2001; March 25, 15, 10-11, 04, 2001; February 2418, 10, 2001

Bugsinthenews

Poison Ivy (Toxicodendron radicans) is found in a few locations in Fern Bluff Park. Photos of two poison ivy vines found in the park during this walk are shown below and at lower right. 

Toxicodendrol is found on the leaves and stems of the poison ivy plant throughout the year. Even during the winter, when its concentration is minimal, it is necessary to wear gloves and protect one's arms with a long sleeved shirt while handling the vines. Afterwards, anyone who handles poison ivy plants (to remove them from landscaping) should wash all articles of clothing, and clean both shoes and gloves with a concentrated alcohol solution. Even if it does not affect the handler, others who come into contact with articles of clothing with toxicodendrol on them may suffer later. 

This flower is another member of the Composite Family, and is known as Small Palafoxia (Palafoxia callosa). It was found on the southeastern slopes of the small stream that passes through the western side of the park.

The toxin in poison ivy is a non-volatile oil known as "toxicodendrol." It is a persistent oil that causes skin blistering and an extremely irritating rash in about 50% of those who come into contact with it. For those who are not generally affected, continued immunity is not assured, but seems to change with age and other physiological conditions. So, if you believe poison ivy won't bother you, watch out! The next time you come into contact with it, you may be in fur a very unpleasant surprise. 

Go to Page 8

Archives of previous walks in the park: 12 May 2007 05 May 2007; 28 April 2007, 21 April 2007, 14 April 2007,  1 April 2007 Easter Egg Hunt; 24 March 2007,  17 March 2007; Nov. 03, 2001; April 04, 2001; March 25, 15, 10-11, 04, 2001; February 2418, 10, 2001