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Ivy, Common | | Name : | Ivy, Common | | Botanical : | Hedera Helix | | Family : | Araliaceae | | Parts Used : | Leaves, berries. | | Habitat : | The plant is found over the greater part of Europe and Northern and Central Asia, and is said to have been particularly abundant at Nyssa, the fabled home of Bacchus in his youth. There are many varieties, but only two accepted species, i.e. Hedera Helix and the Australian species, which is confined to the southern Continent. | | Description : | This well-known evergreen climber, with its dark-green, glossy, angular leaves is too familiar to need detailed description. It climbs by means of curious fibres resembling roots, which shoot out from every part of the stem, and are furnished with small disks at the end, which adapt themselves to the roughness of the bark or wall against which the plant grows and to which it clings firmly. These fibres on meeting with soil or deep crevices become true roots, obtaining nourishment for the plant, but when dilated at the extremity, they merely serve to attach the stems and do not absorb nourishment from the substance to which they adhere. The Ivy is therefore liable to injure the trees around which it twines by abstracting the juices of the stem.
When it attains the summit of a tree or wall, it grows out in a bushy form, and the leaves instead of being five-lobed and angular, as they are below, become ovate, with entire margins. Ivy only produces flowers when the branches get above their support, the flowering branches being bushy and projecting a foot or two from the climbing stems, with flowers at the end of every shoot.Professor Henslow has an interesting note on the Ivy and its shoots, in his Floral Rambles in Highways and Byways: 'The shoots turn to the darker side, as may be seen when Ivy reaches the top of a wall, from both sides; wherever the sun may be the shoots lie flat upon the top. The roots themselves only come out from the darker side of the shoots, so that both of these acquired habits have their purposes. When the Ivy is going to flower, the shoots now turn to the light and stand out freely into the air; moreover the form of the leaf changes from a finepointed one to a much smaller oval type. As the shoot now has to support itself, if a section be made and compared with one of the same diameter which is supported by the adhesive roots, it will be found that it has put on more wood with less pith, than in that of the supported stem. It at once, so to speak, feels the strain and makes wood sufficient to meet it.'The form of Ivy which creeps over the ground on banks and in woods, etc., never blossoms. The branches root into the soil, but they are of the ordinary kind deriving nourishment from it. On endeavouring to train this kind on a wall, it was found to have practically lost the power of climbing; for it kept continually falling away from the wall instead of adhering to it; just as cucumbers refuse to climb by their tendrils, if the stem and branches are supported artificially.
The flowers of Common Ivy are small, in clusters of nearly globular umbels and of a yellowish-green, with five broad and short petals and five stamens. They seldom open before the latter end of October, and often continue to expand till late in December. Though they have little or no scent, they yield abundance of nectar and afford food to bees late in the autumn, when they can get no other.
The berries, which do not become ripe till the following spring, provide many birds, especially wood pigeons, thrushes and blackbirds with food during severe winters. When ripe, they are about the size of a pea, black or deep purple, smooth and succulent, and contain two to five seeds. They have a bitter and nauseous taste, and when rubbed, an aromatic and slightly resinous odour.
| | Uses : | Robinson tells us that a drachm of the flowers decocted in wine restrains dysentery, and that the yellow berries are good for those who spit blood and against the jaundice.
Culpepper says of the Ivy: 'It is an enemy to the nerves and sinews taken inwardly, but most excellent outwardly.'
To remove sunburn it is recommended to smear the face with tender Ivy twigs boiled in butter; according to the old English Leechbook of Bald. |
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