Tuesday, March 3, 2009

Green Alder

By Robert Mills

Virgin's bower is a climbing shrub growing to a height of only 3-4 m. The leaf stalks are twining and support the plant on fences and the stems of other woody plants. The bluish to reddish purple flowers appear in the axils of the leaves on stalks about 10 cm long from June to September. The sepals are petal-like. The seed-like achenes lack the feathery plumes characteristic of other clematis and ripen from August onwards.

A native of southern Europe and Asia Minor, this shrub grows on rocky hillsides and sun- warmed slopes. In central and western Europe it is often planted in parks and gardens. It is a light- loving plant but does not tolerate full sun and should therefore not be planted on house walls with a southern exposure. It is important to water the plant during dry spells. In the mid-19th century it was crossed with Asiatic C. lanuginosa and American species by the English gardener George Jackman, who bred a number of hybrids with large ornamental flowers.

Mistletoe is an evergreen shrub with forked branches that is parasitic on trees. The stem is covered with yellow-green bark. The shrub grows to a height of about 50 cm and is almost circular in shape. It establishes itself on the branches of trees, which it penetrates with its roots, thereby obtaining the water and mineral substances it needs for growth.

Alongside streams and gullies it occasionally descends to lower levels, where it covers uncultivated areas. It suckers freely when cut and also puts out root suckers, by which it is easily propagated.

The hazel is a shrub with straight shoots 3-6 m high, the bark smooth and brownish. The alternate buds are round ovate and covered with several scales. The, male catkins are visible already in autumn, growing in length and maturing in March when their yellow pollen falls on the female, bud-shaped flowers with several slender carmine-red stigmas. By autumn the female flowers develop into a woody oval nut 1-1.5 cm long, enclosed in a green leafy cup. The kernel is oily and very tasty. Propagate by nuts sown in autumn. if stored dry and sown in spring germi- nation is delayed until the second spring.

It grows in western, central and southern Europe and is mostly parasitic on fir and pine trees, and of the deciduous species on poplars, birches, maples, limes and fruit trees. Parasitic on oaks is the closely related yellow-berried mistletoe (Loranthus europaeus), which is deciduous; this species does not occur in Britain, where mistletoe is occasionally found on oaks. - 16035

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