Rudbeckia laciniata

Cutleaf Coneflower

The Cutleaf coneflower (Rudbeckia laciniata) is a robust, perennial plant that belongs to the composite family (Asteraceae). Originally native to North America, it has spread to various regions worldwide. The plant reaches heights of up to 3 metres and produces bright yellow flowers that typically bloom from July to October. The flower heads, up to 12 cm in diameter, consist of yellow ray florets surrounding a green, cone-shaped centre of disc florets. The name "laciniata" refers to the deeply slit, pinnately lobed leaves that give the plant a striking appearance. The leaves are green and glossy, with 3-7 unequal sections. The slit-leaved coneflower prefers moist, well-drained soils and full sun to semi-shady locations, and can establish itself in riparian areas, woodlands and open grasslands.

Types of damage

Ecological damage

Rudbeckia laciniata can form dominance stands due to its rapid spread, especially in riparian areas of rivers, streams and lakes. This can suppress native plant species and reduce biodiversity.

Region of origin

North America

Introduction vectors

Horticulture

Rudbeckia is popular as an ornamental plant because of its attractive flowers and came to Europe through the garden plant trade.
Current distribution

Based on the FlorKart Database of the Federal Agency for Nature Conservation, as of 2013

Miscellaneous

Family

The daisy family (Asteraceae), also known as Asteraceae or Compositae, is one of the largest plant families with more than 23,000 species in about 1,620 genera. A distinguishing feature is their complex inflorescence, which consists of many small individual flowers forming a "basket". This family is globally distributed and contains species ranging from annual plants to perennial shrubs and trees. Well-known representatives are the sunflower, daisy, dandelion and many species of chrysanthemum. Many asteraceae are important for honey production, and some, such as artichoke and endive, are important crops.

Climate change

Rudbeckia laciniata has not yet filled its potentially suitable habitat under current climate conditions. It benefits from climate change because in the future its potentially suitable habitat will increase. The environmental factors that most influence its spread are soil type, winter temperature, summer temperature, road infrastructure and summer precipitation.

Dispersion forecast

Indicates the proportion of land suitable for habitat under current and future climate conditions (2060-2080) under three emission scenarios (RCP26, RCP45 & RCP85).

Habitat suitability maps

Instructions for use: Click here

Habitat suitability under current climate conditions

These habitat suitability maps show for Rudbeckia laciniata where suitable habitat conditions exist.

The map on the left shows this for current climate conditions. Below this are maps for the time classes 2040-2060 and 2061-2080, in which three different emission scenarios can be selected.

The slider at the top left allows you to adjust the opacity of the map to make orientation easier.

By clicking on the respective quadrant, information on the environmental conditions present in it can be called up.

The methodology is explained here .

Habitat suitability 2040 - 2060

2040-2060: In the RCP2.6 scenario, GHG emissions are expected to peak by 2040 through comprehensive mitigation measures and to decline rapidly thereafter. By 2060, global warming would stabilise at about 1.5°C above pre-industrial levels. Subtle changes in precipitation patterns could vary regionally, with some areas facing increased drought and others increased precipitation.

2040-2060: Under RCP4.5, GHG emissions would continue to increase until 2040, but stabilise at a high level thereafter. By 2060, there could be a global temperature increase of about 2°C above pre-industrial levels. This scenario would likely cause moderate changes in precipitation patterns, with potential regional differences.

2040-2060: Under RCP8.5, which assumes continued intensive use of fossil fuels, greenhouse gas emissions would rise sharply by 2060. The global temperature increase could be around 2.5-3°C. In this scenario, significant changes in precipitation patterns could occur, with an increased likelihood of extreme weather events.

Habitat suitability 2061 - 2080

2060-2080: By 2080, global warming could be limited to below 2°C in the RCP2.6 scenario, provided emission reductions are consistently pursued. Impacts on precipitation patterns would likely stabilise, although regional variance would remain significant.

2060-2080: In the RCP4.5 scenario, global temperatures would continue to increase and could be around 2.5°C above pre-industrial levels by 2080. Changes in precipitation patterns would likely increase and regional differences could become more pronounced.

2060-2080: Under RCP8.5, global temperatures could rise by more than 4°C above pre-industrial levels by 2080. Precipitation patterns would be expected to change significantly, with further increases in the frequency and intensity of extreme weather events. This would have far-reaching impacts on ecological and socio-economic systems.