Biology:Clerodendrum trichotomum

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Short description: Species of flowering plant in the family Lamiaceae

Clerodendrum trichotomum
Clerodendrum trichotomum, Vancouver.jpg
Scientific classification edit
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Clade: Asterids
Order: Lamiales
Family: Lamiaceae
Genus: Clerodendrum
Species:
C. trichotomum
Binomial name
Clerodendrum trichotomum
Thunb.

Clerodendrum trichotomum, the harlequin glorybower, glorytree or peanut butter tree, is a species of flowering plant in the family Lamiaceae. It is native to China, Korea, Taiwan, Japan, India, and the Philippines.[2][3]

It is a large deciduous shrub, growing 3–6 metres (10–20 ft) high. The leaves are ovate, up to 12 cm (5 in) long, soft and downy or hairy, producing a peanut odor when crushed. The fragrant flowers are borne on branching peduncles. They have white petals, held within a green calyx which turns red as the fruits ripen. The fruits (drupes) are white, changing to bright blue and eventually dark blue on maturity.[4] They contain the novel blue pigment trichotomine.[5]

It is cultivated for its fragrant flowers, autumn colour, and ornamental berries. It is hardy but requires a sheltered position. The variety C. trichotomum var. fargesii (Farges' harlequin glorybower) and the cultivar C. trichotomum var. fargesii 'Carnival'[6] have gained the Royal Horticultural Society's Award of Garden Merit.[7] (confirmed 2017).[8]

Etymology

Clerodendrum is derived from Greek, and means 'chance tree'.[9]

Trichotomum is also derived from Greek, and means 'three-forked' or 'triple-branched'.[9]

References

  1. de Kok, R. (2022). "Clerodendrum trichotomum". IUCN Red List of Threatened Species 2022: e.T164941752A164941933. doi:10.2305/IUCN.UK.2022-1.RLTS.T164941752A164941933.en. https://www.iucnredlist.org/species/164941752/164941933. Retrieved 11 October 2023. 
  2. Wearn, J.A.; Mabberley, D.J.; Bramley, G.L.C. (2019). "Clerodendrum". Flora Malesiana. Series I - Seed Plants. 23 - 2019. The Netherlands: Naturalis Biodiversity Center. pp. 152. ISBN 978-90-6519-019-2. 
  3. {{citation | mode = cs1 | title = Clerodendrum trichotomum | work = Germplasm Resources Information Network (GRIN) | url = | publisher = [[Organization:Agricultural Research ServAgricultural Research Service (ARS), United States Department of Agriculture (USDA) | access-date = 23 January 2018 }}
  4. RHS A-Z Encyclopedia of Garden Plants. United Kingdom: Dorling Kindersley. 2008. pp. 1136. ISBN 978-1405332965. 
  5. Iwadare S, Shizuri Y, Yamada K, Hirata Y. Synthesis of trichotomine, a blue pigment obtained from Clerodendron trichotomum Thunb. Tetrahedron. 1978; 34(10):1457-1459. doi:10.1016/0040-4020(78)80166-5
  6. "Clerodendrum trichotomum var. fargesii 'Carnival'". RHS. https://www.rhs.org.uk/Plants/323029/Clerodendrum-trichotomum-var-fargesii-Carnival-(v)/Details. 
  7. "Clerodendrum trichotomum var. fargesii". RHS. https://www.rhs.org.uk/Plants/98467/Clerodendrum-trichotomum-var-fargesii/Details. 
  8. "AGM Plants - Ornamental". Royal Horticultural Society. July 2017. p. 22. https://www.rhs.org.uk/plants/pdfs/agm-lists/agm-ornamentals.pdf. 
  9. 9.0 9.1 Gledhill, David (2008). "The Names of Plants". Cambridge University Press. ISBN:9780521866453 (hardback), ISBN:9780521685535 (paperback). p 111, 385

Further reading

  • Hillier, J. and A. J. Coombes. The Hillier Manual of Trees and Shrubs. David & Charles. 2007.

Wikidata ☰ Q764044 entry