Macleaya cordata

Macleaya cordata, the five-seeded plume-poppy,[1] is a species of flowering plant in the poppy family Papaveraceae,[2] which is used ornamentally.[3] 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) or more wide, with olive green leaves and airy panicles of buff-white flowers in summer.[4]

Macleaya cordata
Scientific classification
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Order: Ranunculales
Family: Papaveraceae
Genus: Macleaya
Species:
M. cordata
Binomial name
Macleaya cordata
Synonyms

Bocconia cordata Willd.

Etymology
Xianbei people blowing boluohui, a kind of horn that the dried stem of Macleaya cordata is used to mimic

The Latin cordata means "heart-shaped", referring to the leaves.[5] The common name plume poppy is used for plants of the genus Macleaya.

The Chinese name 博落回 (bóluòhúi) is derived from 簸邏迴 (bòluóhúi), the Xianbei name for a musical instrument also known as 大角 (dà jiǎo, "big horn"), because the sound of blowing the dried[note 1] hollow stem resembles the instrument sound.[6]

The Japanese name 竹似草 (takenigusa) means "bamboo-like herb", also referring to its hollow stem.

Cultivation

It self-seeds readily and can be invasive, so in cultivation requires space. It is a popular subject for flower arranging. It has gained the Royal Horticultural Society's Award of Garden Merit.[7]

Macleaya × kewensis, bred at Kew Gardens, is a hybrid of M. cordata and M. microcarpa. The cultivar 'Flamingo' has pink tinged flowers, and has also received the Award of Garden Merit.[8]

Other uses

Macleaya cordata is a source of a variety of chemical compounds, mainly isoquinoline alkaloids. The seed oil contains dihydrosanguinarine, dihydrochelerythrine, and twelve fatty acids of which linoleic, oleic, palmitic and stearic acids predominate.[9]

Footnotes
  1. The sap is very poisonous, so the fresh stem should never be blown.

References
  1. "BSBI List 2007". Botanical Society of Britain and Ireland. Archived from the original (xls) on 2015-01-25. Retrieved 2014-10-17.
  2. "Macleaya cordata - (Willd.)R.Br". Plants for a Future (PFAF).
  3. Pink, A. (2004). Gardening for the Million. Project Gutenberg Literary Archive Foundation.
  4. RHS A-Z encyclopedia of garden plants. United Kingdom: Dorling Kindersley. 2008. p. 1136. ISBN 978-1405332965.
  5. Harrison, Lorraine (2012). RHS Latin for gardeners. United Kingdom: Mitchell Beazley. p. 224. ISBN 9781845337315.
  6. 陳藏器 (739). 本草拾遺 (in Chinese).
  7. "Macleaya cordata". www.rhs.org. Royal Horticultural Society. Retrieved 1 October 2020.
  8. "RHS Plant Selector - Macleaya × kewensis 'Flamingo'". Retrieved 26 June 2013.
  9. Kosina, P.; Gregorova, J.; Gruz, J.; Vacek, J.; Kolar, M.; Vogel, M.; Roos, W.; Naumann, K.; Simanek, V.; Ulrichova, J. (2010). "Phytochemical and antimicrobial characterization of Macleaya cordata herb". Fitoterapia. 81 (8): 1006–1012. doi:10.1016/j.fitote.2010.06.020. PMID 20600683.
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