''Bartlettina sordida'', the purple torch or blue mist flower, is a flowering plant which is

endemic Endemism is the state of a species being found in a single defined geographic location, such as an island, state, nation, country or other defined zone; organisms that are indigenous to a place are not endemic to it if they are also found elsew ...

cloud forest A cloud forest, also called a water forest, primas forest, or tropical montane cloud forest (TMCF), is a generally tropical or subtropical, evergreen, montane, moist forest characterized by a persistent, frequent or seasonal low-level cloud c ...

habitats in

Mexico Mexico (Spanish: México), officially the United Mexican States, is a country in the southern portion of North America. It is bordered to the north by the United States; to the south and west by the Pacific Ocean; to the southeast by Guatema ...

.Plantprovocateur.com: ''Bartlettina sordida''
. accessed 11.28.2013 Royal Botanic Gardens of Sydney, Australia: ''Bartlettina sordida''
. accessed 11.28.2013. It was formerly classified in the genus ''

Eupatorium ''Eupatorium'' is a genus of flowering plants in the family Asteraceae, containing from 36 to 60 species depending on the classification system. Most are herbaceous perennials growing to tall. A few are shrubs. The genus is native to temperate ...

''.

Description

The plant is an

evergreen In botany, an evergreen is a plant which has foliage that remains green and functional through more than one growing season. This also pertains to plants that retain their foliage only in warm climates, and contrasts with deciduous plants, which ...

, erect

shrub A shrub (often also called a bush) is a small-to-medium-sized perennial woody plant. Unlike herbaceous plants, shrubs have persistent woody stems above the ground. Shrubs can be either deciduous or evergreen. They are distinguished from trees ...

, growing to tall and wide. ''Bartlettina sordida'' has reddish-purple branches clothed in slightly rough, dark green leaves with prominent

venation Venation may refer to: * Venation (botany), the arrangement of veins in leaves * Wing venation, the arrangement of veins in insect wings See also * * Vernation Vernation (from ''vernal'' meaning ''spring'', since that is when leaves spring forth ...

and paler undersides. The leaves are very large, up to 10 inches (25 cm) longs and 8 inches (20 cm) wide. The

inflorescence An inflorescence is a group or cluster of flowers arranged on a stem that is composed of a main branch or a complicated arrangement of branches. Morphologically, it is the modified part of the shoot of seed plants where flowers are formed o ...

is a terminal corymbose panicle, 20–30 cm across. The large clusters of scented flowers appear in spring, mauve to lilac to magenta-blue in color. The clusters have a bursting fireworks appearance. The seed has a fluffy pappus and is easily dispersed by wind.

Cultivation

''Bartlettina sordida'' is cultivated as an

ornamental plant Ornamental plants or garden plants are plants that are primarily grown for their beauty but also for qualities such as scent or how they shape physical space. Many flowering plants and garden varieties tend to be specially bred cultivars that i ...

for use in

garden A garden is a planned space, usually outdoors, set aside for the cultivation, display, and enjoyment of plants and other forms of nature. The single feature identifying even the wildest wild garden is ''control''. The garden can incorporate both ...

s and parks. They are

pollinator A pollinator is an animal that moves pollen from the male anther of a flower to the female stigma of a flower. This helps to bring about fertilization of the ovules in the flower by the male gametes from the pollen grains. Insects are the maj ...

plants, attractive to

butterflies Butterflies are insects in the macrolepidopteran clade Rhopalocera from the Order (biology), order Lepidoptera, which also includes moths. Adult butterflies have large, often brightly coloured wings, and conspicuous, fluttering flight. The ...

. The plant prefers bright dappled shade, and moist, well draining soils high in organic matter. The plant is

frost Frost is a thin layer of ice on a solid surface, which forms from water vapor in an above-freezing atmosphere coming in contact with a solid surface whose temperature is below freezing, and resulting in a phase change from water vapor (a gas) ...

tender below 25/30 °F (1/3 °C).

Propagation Propagation can refer to: *Chain propagation in a chemical reaction mechanism *Crack propagation, the growth of a crack during the fracture of materials *Propaganda, non-objective information used to further an agenda *Reproduction, and other forms ...

is via seed, or semihardwood cuttings taken in autumn and winter or from prunings taken after flowering in late spring.Botanica's Trees & Shrubs, Random House, Sydney, 2001 The species has escaped from garden in parts of Australia, and can become weed and

invasive species An invasive species otherwise known as an alien is an introduced organism that becomes overpopulated and harms its new environment. Although most introduced species are neutral or beneficial with respect to other species, invasive species ad ...

in compatible

habitat In ecology, the term habitat summarises the array of resources, physical and biotic factors that are present in an area, such as to support the survival and reproduction of a particular species. A species habitat can be seen as the physical ...

s where there is ample moisture. File:Eupatorium sordidum.jpg File:Bartlettina sordida 3.jpg

References

External links

* {{Taxonbar, from=Q2711745 sordida Endemic flora of Mexico Garden plants of North America