Skip to content

Sow Thistle (Black Diamond) Traditional Cache

This cache has been archived.

K.E.T.: Apparently gone.

More
Hidden : 9/4/2017
Difficulty:
1.5 out of 5
Terrain:
1.5 out of 5

Size: Size:   small (small)

Join now to view geocache location details. It's free!

Watch

How Geocaching Works

Please note Use of geocaching.com services is subject to the terms and conditions in our disclaimer.

Geocache Description:

 

Sow Thistle ( Sow= pig, not “seeding”) seems to be the name of these Dandelion like flowers. Lots around here and elsewhere. I certainly hadn’t paid attention to them before. Please BYOP.


 

Sonchus is a genus of flowering plants in the dandelion tribe within the sunflower family.

Most of the species are annual herbs, a few are perennial, and a few are even woody (subgenus Dendrosonchus, restricted to the Canary Islands).

 

 

Sonchus oleraceus A Smooth Sow-Thistle

 

Annual herbs in the genus are known as sow thistles (less commonly hare thistles or hare lettuces). The genus is named after the Ancient Greek for such plants. All are characterized by soft, somewhat irregularly lobed leaves that clasp the stem and, at least initially, form a basal rosette. The stem contains a milky latex. Flower heads are yellow and range in size from half to one inch in diameter; the florets are all of ray type. Sow thistles are common roadside plants, and while native to Eurasia and tropical Africa, they are found almost worldwide in temperate regions.

 

Mature sow thistle stems can range from 30 cm to 2 m (1 to 6 feet) tall, depending upon species and growing conditions. Colouration ranges from green to purple in older plants. Sow thistles exude a milky latex when any part of the plant is cut or damaged, and it is from this fact that the plants obtained the common name, "sow thistle", as they were fed to lactating sows in the belief that milk production would increase. Sow thistles are known as "milk thistles" in some regions, although true milk thistles belong to the genus Silybum.

 

 

Sonchus hierrensis in the Canary Island of La Gomera.

 

Sow thistles have been used as fodder, particularly for rabbits, hence the other common names of "hare thistle" or "hare lettuce". They are also edible to humans as a leaf vegetable; old leaves and stalks can be bitter but young leaves have a flavor similar to lettuce. Going by the name puha or rareke (raraki) it is frequently eaten in New Zealand as a vegetable, particularly by the native Maori. When cooked the flavor is reminiscent of chard.

 

 

In many areas sow thistles are considered noxious weeds, as they grow quickly in a wide range of conditions and their wind-borne seeds allow them to spread rapidly. Sonchus arvensis, the perennial sow thistle, is considered the most economically detrimental, as it can crowd commercial crops, is a heavy consumer of nitrogen in soils, may deplete soil water of land left to fallow, and can regrow and sprout additional plants from its creeping roots. However, sow thistles are easily uprooted by hand, and their soft stems present little resistance to slashing or mowing. Most livestock will readily devour sow thistle in preference to grass, and this lettuce-relative is edible and nutritious to humans—in fact this is the meaning of the second part of the Latin name of the common sow thistle, oleraceus. Attempts at weed control by herbicidal use, to the neglect of other methods, may have led to a proliferation of this species in some environments.

 

 

Sonchus tenerrimus and Sonchus oleraceus infest many crops in Italy, especially in the Southern area of the peninsula. They are considered good tasting edible plants and are cooked with spaghetti.

 

In traditional medicine, the plant has medicinal qualities, having "nearly the same properties as dandelion and chicory.

 

Sow thistles are common host plants for aphids. Gardeners may consider this a benefit or a curse; aphids may spread from sow thistle to other plants, but alternatively the sow thistle can encourage the growth of beneficial predators such as hoverflies. In this regard sow thistles make excellent sacrificial plants. Sonchus species are used as food plants by the larvae of some Lepidoptera including Celypha rufana and the broad barred white, grey chi, nutmeg and shark moths. The fly Teohritis formosa is known to attack the capitula of this plant.

 

(Capitulum (plural capitula)

Capitulum can be used as an exact synonym for pseudanthium and flower head;however its use is generally but not always restricted to the Asteraceae family. At least one source defines it as a small flower head. In addition to its botanical use as a term meaning flower head it is also used to mean the top of the sphagnum plant.)

 

The scientific name  Sonchus refers to the hollow stem, while oleraceus refers to its good taste. The common name sow thistle refers to its attractiveness to swine, and the similarity of the leaf to younger thistle plants. The common name hare's thistle refers to its purported beneficial effects on hare and rabbits.

 

 

The cache is a tied in, camoed, “small” pill bottle, that you have to push hard to open and close. Please BYOP and put back as you found it, with double bags and rubber bands? Remember that makes it easier to get the log out of the bottle.

Additional Hints (No hints available.)