Arytainilla

Pronunciation

How to pronounce Arytainilla: //ˌæɹɪˈteɪnɪlə//

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Summary

Cytisus scoparius, commonly known as Scotch broom, is a deciduous shrub native to Europe, noted for its bright yellow flowers and invasive nature. It is regarded for both its ornamental use and as an invasive species that disrupts local ecosystems.

Physical Characteristics

Plants of Cytisus scoparius typically grow to 1–3 metres (3+1⁄2–10 feet) tall, rarely to 4 m (13 ft). Stems are ridged and green with small trifoliate leaves 5–15 millimetres (1⁄4–5⁄8 in) long, and are covered in profuse golden yellow flowers 20–30 mm (3⁄4–1+1⁄8 in) tall and 15–20 mm wide during spring and summer.

Identification Tips

The shrub can be identified by its elongated seed pods that mature black, which burst open vigorously to release seeds. It is recognized for its yellow flowers and trifoliate leaves.

Habitat

Found in sunny sites on dry, sandy soils at low altitudes, tolerant of very acidic soil conditions.

Distribution

Native to western and central Europe, common in Great Britain and Republic of Ireland. Also invasive in parts of North America, Australia, New Zealand, and India.

Predators

Aphis cytisorum (a resistant aphid species) is noted; however, specific insect predators are not detailed.

Ecosystem Role

Functions as an invasive species affecting native flora by competing for resources.

Economic Impact

Responsible for significant economic losses in timber production in Oregon and New Zealand, estimated at $47 million and NZ$90 million respectively.

Cultural Significance

In Welsh mythology, Blodeuwedd was made from broom flowers. The Plantagenet family used it as a heraldic emblem.

Health Concerns

Contains toxic alkaloids such as cytisine which depress the heart and nervous system; slightly toxic to livestock.

Tags

• invasive species
• ornamental plant
• Cytisus scoparius
• Scotch broom