Diervilla

"Bush Honeysuckle" is also the common name of Lonicera maackii, a common invasive shrub in the United States and New Zealand.

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Northern bush honeysuckle
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Bush Honeysuckle (Diervilla) is genus of three species of deciduous shrubs in the family Caprifoliaceae, all indigenous to eastern North America. The genus is named after a French surgeon Dr. Dierville, who introduced the plant to Europe around 1700.

The bush honeysuckles are low in height (1-2 m), of small to medium diameter (1-2 m), and develop into colonies by means of spreading underground rhizomes. Their leaves are simple, opposite and either oval or lanceolate in shape with a toothed edge. The fall color varies between yellow, orange and red. Small tubular flowers, typically pale yellow, are produced in June and July.

Species

• Diervilla sessilifolia – Southern bush honeysuckle
• Diervilla lonicera – Northern bush honeysuckle (other names Low bush honeysuckle, Dwarf bush honeysuckle, Yellow-flowered upright honeysuckle)
• Diervilla rivularis – Mountain bush honeysuckle (other names Georgia bush honeysuckle, Hairy bush honeysuckle)

Other species formerly included in Diervilla are now treated in the genus Weigela. The bush honeysuckles are commonly confused with the common wild honeysuckle (Lonicera tartarica), or the Japanese honeysuckle (Lonicera japonica), both members of the closely related genus Lonicera.

The British Diervilla national collection is held at Sheffield Botanical Gardens; along with the national collection of the closely related Weigela genus.[1]

Diervilla species are used as food plants by the larvae of some Lepidoptera species including Common Emerald and The Engrailed.

References

• USDA Plants Profile: Diervilla lonicera

External links

• British national collection at Sheffield Botanical Gardens