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Unique Growth in Interesting Soil EarthCache

Hidden : 5/8/2008
Difficulty:
1.5 out of 5
Terrain:
1.5 out of 5

Size: Size:   not chosen (not chosen)

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Geocache Description:

Small beautiful trail full of carnivorous plants, which is unique because of the area's soil.


PLEASE FOLLOW ALL REQUIREMENTS!!! OTHERWISE YOUR LOG WILL BE DELETED!!! NO EXCEPTIONS!!!

The three main nutrients plants need are nitrogen, phosphorous and potassium. The Venus Flytrap is found in nitrogen-poor environments, such as bogs, marshes or swamps. Although it has been successfully transplanted and grown in many locales around the world, it is found natively only in North and South Carolina in the United States, specifically within a 100 mile radius of Wilmington, North Carolina. Most early scientists believed the plant to be a myth until there was physical proof.

The mineral soil, found in this area, is nutritionally poor and the plant's roots are used to the very low nitrogen environment. This is the reason that the plant relies on such elaborate traps: insect prey, provide the nitrogen for protein formation that the soil cannot.

The Venus Flytrap is a small herb, forming a rosette of four to seven leaves, which arise from a short subterranean stem that is actually a bulb-like rhizome. Each leaf reaches a maximum size of about three to seven centimeters, depending on the time of year; longer leaves with robust traps are generally formed after flowering. The leaf blade is divided into two regions: a flat, heart shaped photosynthetic capable petiole, and a pair of terminal lobes hinged at the midrib, forming the trap which is actually the true leaf. The upper surface of these lobes contains red anthocyanin pigments and its edges secrete mucilage. The reddish color of the lobe can be affected by the pH of the soil. If the soil can not keep its acidity, because of alkaline influences introduced to the soil by ornamental rocks or the water itself, the red colored trap plants may loose their nice reddish color. The soil itself is not acidic but actually highly alkaline. The high acidic pH is a result of acidic water, nearby plants, such as moss, and other factors which dominate the pH of the environment. This in turn lowers the pH of the soil.

The lobes, of the Venus fly trap, exhibit rapid plant movements, snapping shut when stimulated by prey. The trapping mechanism is tripped when prey items stumble against one of the three hair-like trichomes that are found on the upper surface of each of the lobes. The trapping mechanism is so specialized that it can distinguish between living prey and non-prey stimuli such as falling raindrops; two trigger hairs must be touched in succession or one hair touched twice, whereupon the lobes of the trap will snap shut in about 0.1 seconds. The edges of the lobes are fringed by stiff hair-like protrusions or cilia, which mesh together and prevent large prey items from escaping. Speed of closing can vary depending on the amount of humidity, light, size of prey, and general growing conditions. The speed with which traps close can be used as an indicator of a plant's general health. About 10 days are required for digestion, after which the leaf reopens. The trap dies after capturing three or four insects.

PLEASE!!! The leaf only closes a couple times before it dies so DO NOT try to make it close. Please don't take any plants, seeds or even any part of the plants. It is illegal and the penalty is $2000 fine and six months in jail for EACH PLANT OR EACH SEED. So it's not worth it. You can buy them for less than $5.

In addition to the Venus flytraps there are several other carnivorous plants on this trail, such as sundews and pitcher plants. The best time to view the plants, are between April and October. Between April through July come to see the very unusual flowers of the North American pitcher plants.

Please complete one of the following requirements for logging:

1. Send me an email a description of the soil at the posted coordinates.

Or 2. Take a picture of you with the carnivorous plants in the background.

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