Appearance
The most distinctive features of Clerodendrum paniculatum are the large terminal inflorescences (thyrses, though often erroneously called panicles) up to 45 cm long, bearing numerous red-orange flowers. Each slender, tubular flower is 1.2–2 cm long with five small lobes, these usually being slightly paler than the tube. Butterflies are the main pollinators. They extend their long, thin proboscides into the flower tubes during which process pollen adheres to their bodies from the long-exserted stamens.The large, glossy, lobed leaves and fairly robust stems with an almost square cross-sectional form are also prominent characteristics of C. paniculatum. Their ability to produce root suckers allows pagoda flowers to spread vegetatively and they can form apparently clonal stands of several plants together.
Naming
Clerodendrum paniculatum was first described in 1767 by the ‘father’ of modern biological nomenclature – the Swedish botanist, Carl Linnaeus.Distribution
The pagoda flower is found throughout tropical and subtropical Asia, from Bangladesh to the Moluccas. It is widely cultivated and often establishes as a garden escapee in these regions, so that its original distribution is not entirely clear.Uses
The pagoda flower has a number of medicinal uses in Asia. In Malaysia an infusion is drunk as a purgative and is applied externally to distended stomachs. Various magical attributes have been recorded; indeed the Malay vernacular name pangil-pangil refers directly to the ‘summoning’ of spirits. Clerodendrum paniculatum is also supposed to confer protection from harm and is used as an elephant-medicine! Substances produced by several Clerodendrum species are undergoing more rigorous scientific trials in order to evaluate their medicinal potential. To date, results are promising, and antipyretic and anti-inflammatory properties have been verified, as well as antiviral activity.Cultural
The pagoda flower was taken into cultivation throughout Indomalesia many centuries ago, as it is easy to grow in warm, humid climates and produces large inflorescences nearly all year round. Flowers of cultivated plants are usually sterile and so do not produce fruits. During the eighteenth century, novel ornamental plants from ‘the other side of the world’ were in high demand in Europe and this species was one of the earliest to reach the foremost nurseries of the time, being introduced to Britain from Java in 1809 as a greenhouse plant. It is easily propagated vegetatively and strikes readily from cuttings.An occasional, naturally-occurring colour form with pale lemon-yellow flowers and pedicels (previously called Clerodendrum citrinum) has been selected due to its ornamental appeal and is grown as C. paniculatum ‘Alba’.
References:
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http://www.kew.org/plants-fungi/Clerodendrum-paniculatum.htm