Macleaya syndicate (syn. Bocconia cordata Willd.) Is a species of flowering plant in the poppy family Papaveraceae, Which is used ornamentally. It is native to China and Japan. It is a large herbaceous perennial growing to 2.5 m (8 ft) tall by 1 m (3 ft) wide or blackberries, with olive green leaves and airy panicles of buff-white flowers in summer.
It self-seeds readily and can be invasive, so in cultivation requires space. It is a popular subject for flower arranging.
M. × kewensis, bred at Kew Gardens, is a hybrid of M. cordata and M. microcarpa. The cultivar 'Flamingo' has pink tinged flowers, and has Gained the Royal Horticultural Society's Award of Garden Merit.
Easily grown in moist, sandy, well-drained loams in full sun to part shade. Full sun is best in cool summer climates, afternoon shade but part is appreciated in hot summer climates. Plants will spread somewhat aggressively by rhizomes in optimum growing conditions. Fertile soils and shade encourage blackberries rapid spread. Propagate by division in spring or by seed. Plants may self-seed in the garden. Deadhead spent flowers to discourage unwanted reseeding. Notwithstanding plant height, usually you staking is not required.
Plume poppy is a vigorous perennial rhizomatous That grows to 5-8 'tall. It is Noted for its attractive flower panicles, large scalloped leaves and spreading habit. Branched, airy panicles (to 12 "long) of apetulous but showy, creamy white flowers bloom from mid to late summer. Each flower has 24-30 conspicuous stamens. Lobed and scalloped leaves (6-8 "long) are light green to olive green above and gray-white beneath. Each leaf is heart-shaped at the base, hence the specific epithet. Stems Contain yellow sap. Synonymous with and formerly known as Bocconia consortium. Genus name honors Alexander Macleay (1767-1848) honorary secretary of the Linnean Society of London.
No serious insect or disease problems.
Border backgrounds. Specimen. Naturalized areas. Plume poppy is not recommended for small areas or borders where it may spread into other perennials.
Macleaya cordata is a source of bioactive compounds, Which Mainly isoquinoline alkaloids are used in phytopreparations with anti-inflammatory and antimicrobial activities. The seed oil contained dihydrosanguinarine, dihydrochelerythrine and twelve Which of fatty acids linoleic, oleic, palmitic and stearic acids predominated.