Holmskioldia

Chinese hat plant
Holmskioldia sanguinea
Scientific classification
Kingdom:	Plantae
(unranked):	Angiosperms
(unranked):	Eudicots
(unranked):	Asterids
Order:	Lamiales
Family:	Lamiaceae
Genus:	Holmskioldia Retz.
Binomial name
Holmskioldia sanguinea Retz.
Synonyms[1]
Hastingia K.D.Koenig ex Sm. Platunum A.Juss. Hastingia coccinea Sm. Holmskioldia rubra Pers. Holmskioldia scandens Sweet Hastingia scandens Roxb.

Holmskioldia is a genus of flowering plants in the mint family, Lamiaceae. It is native to the Himalayas (India, Pakistan, Nepal, Bhutan, Bangladesh, Myanmar) but widely cultivated as an ornamental and naturalized in many places (Southeast Asia, New Caledonia, Hawaii, Mexico, West Indies, Venezuela, etc.) It contains only one known species, Holmskioldia sanguinea, commonly called the Chinese hat plant, cup-and-saucer-plant or mandarin's hat.^{[1][2][3][4][5]}

The genus name commemorates Johan Theodor Holmskiold (1731-1793), a Danish botanist who wrote Beata ruris otia fungis Danicis, published in two volumes in 1790 and 1799.

Species formerly included

The following species have been moved to genus Karomia:^[6]

• Holmskioldia gigas Faden = Karomia gigas (Faden) Verdc.
• Holmskioldia speciosa Hutch. & Corbishley = Karomia speciosa (Hutch. & Corbishley) R.Fern. – Southern Chinese hats, Wild parasol flower
• Holmskioldia tettensis (Klotzsch) Vatke = Karomia tettensis (Klotzsch) R.Fern. – Cups-and-saucers, Wild parasol flower

The plant contains oroxindin, a type of polyphenolic compound.^[7]

References

1. Kew World Checklist of Selected Plant Families
2. Fernandes, R. & Diniz, M.A. (2005). Avicenniaceae, Nesogenaceae, Verbenaceae and Lamiaceae (subfams, Viticoideae and Ajugoideae). Flora Zambesiaca 8(7): 1-161. Royal Botanic Gardens, Kew.
3. Nelson Sutherland, C.H. (2008). Catálogo de las plantes vasculares de Honduras. Espermatofitas: 1-1576. SERNA/Guaymuras, Tegucigalpa, Honduras.
4. Hokche, O., Berry, P.E. & Huber, O. (eds.) (2008). Nuevo Catálogo de la Flora Vascular de Venezuela: 1-859. Fundación Instituto Botánico de Venezuela.
5. Davidse, G. & al. (eds.) (2012). Flora Mesoamericana 4(2): 1-533. Universidad Nacional Autónoma de México, México, D.F..
6. "Holmskioldia". The Plant List (2013). Version 1.1. Retrieved 16 March 2014.
7. Phytotoxic and antimicrobial constituents of Bacopa monnieri and Holmskioldia sanguinea