Monday, March 2, 2009

Bladdernut

By Jada Aaron

The bladdernut is an upright, tree-like shrub, 2-5 m high. The bark covering the stem is greenish brown with whitish longitudinal stripes. The shoots are stout and green with paired green buds at the tip of the twig, as a rule, covered with a single fused pair of scales. The whitish, drooping flowers, 5-12 cm long, appear in May-June, the round bladder-like fruits, measuring 2-3 cm, ripen at the end of September and beginning of October. They are 2- or 3-valved, with each compartment containing a single, light brown, hard, round seed the size of a pea. At one, time the seeds were used to make rosaries.

A native of western and southern Europe, it thrives exceptionally well in the moist and mild coastal climate. It requires partial shade and often grows in woodland. In the Alps it is found at elevations up to 1200 m. In central Europe it is often planted in parks, though it suffers great damage by frost in severe winters.

The spindle tree is an upright shrub or small tree, 2-6 m in height. The shoots are green, tinted red on the side exposed to the sun, markedly four- angled. The buds are ovate, green, often sub- opposite. The leaf scars are whitish.

The smoke bush is a shrub or tree glowing to a height of 2-8 m and forming a broad, rounded crown. The shoots are violet-brown, the buds small with pointed tips, borne in terminal clusters. The twigs when broken and leaves when crushed have a strong aromatic scent. The flowers, often dioecious, are borne in feathery panicles in June. The fruits ripen at the beginning of September. Both the flowering panicles and fruits make the smoke bush a very attractive ornamental. It produces prolific stump sprouts as well as root suckers.

The smoke bush is a native of southern Europe south of the Carpathians and of southern Siberia, its range extending to China. It grows on dry, mostly south-facing banks in thin oak and pine woods. A light-loving shrub, it stands up well to dry spells and tolerates soils containing lime and magnesium. In central and western Europe it is widely planted in parks as a specimen plant for its ornamental reddish fluffy fruiting clusters and crimson autumn foliage. It may be damaged by frost in severe winters.

Farmers do not welcome its presence in the vicinity of fields because it serves as host to the black or bean aphis, which causes great damage to bean and sugar beet plantings. There are several garden varieties of which `Albus' with white fruits, 'Red Cascade' with red fruits and `Atropurpureus' with dull purple leaves are noteworthy.

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