Rudbeckia laciniata

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Korina 2010-08-23 Rudbeckia laciniata

Rudbeckia laciniata, commonly known as the cutleaf coneflower, is a species of flowering plant in the Asteraceae family, which also includes sunflowers, daisies, and asters. This perennial plant is native to North America, where it is found in a variety of habitats from moist woodlands to stream banks and roadside ditches. It is characterized by its tall stature, often reaching up to 3 meters in height, and its distinctive, deeply lobed leaves which give the plant its common name.

Description

Rudbeckia laciniata features tall, sometimes branched stems that bear large, daisy-like flowers with drooping yellow petals and a prominent, greenish-yellow central cone. The flowers bloom from late summer into fall, providing a late-season nectar source for pollinators such as bees and butterflies. The leaves are 3-4 times deeply lobed, giving them a ragged appearance, which is quite different from the more common, unlobed leaves of other Rudbeckia species.

Habitat and Distribution

This species is widely distributed across much of the United States and Canada. It prefers moist environments and is commonly found in wet meadows, along stream banks, in flood plains, and in woodland clearings. Its ability to thrive in a variety of conditions has made it a popular choice for gardeners and landscape designers, who value it for its height, its attractive foliage, and its bright, cheerful flowers.

Cultivation and Uses

Rudbeckia laciniata is easy to grow and can be propagated by seed, division, or cuttings. It prefers full sun to partial shade and moist, well-drained soil. Once established, it is relatively drought-tolerant and requires minimal care, making it a low-maintenance option for naturalistic plantings and wildflower gardens. In addition to its ornamental value, it is also planted for erosion control and to attract wildlife, providing food and habitat for a variety of species.

Varieties and Cultivars

Several cultivars of Rudbeckia laciniata have been developed for garden use, offering variations in height, flower size, and leaf shape. Some popular cultivars include 'Herbstsonne' (Autumn Sun), which is noted for its tall, robust growth and large, bright yellow flowers, and 'Goldquelle' (Golden Fountain), which features double flowers.

Conservation

While Rudbeckia laciniata is not currently listed as a species of conservation concern, its natural habitats are increasingly threatened by development, pollution, and invasive species. Conservation efforts focus on preserving natural habitats and promoting the use of native plants in landscaping to support biodiversity.

Gallery

Note: As per the given constraints, no images are included.

See Also

• Asteraceae
• Pollinators
• Native plants