Coleus argentatus

Classification System: APG IV

Superregnum: Eukaryota
Regnum: Plantae
Cladus: Angiosperms
Cladus: Eudicots
Cladus: Core eudicots
Cladus: Asterids
Cladus: Lamiids
Ordo: Lamiales

Familia: Lamiaceae
Subfamilia: Nepetoideae
Tribus: Ocimeae
Subtribus: Plectranthinae
Genus: Coleus
Species: Coleus argentatus
Name

Coleus argentatus (S.T.Blake) P.I.Forst & T.C.Wilson, PhytoKeys 129: 20. (2019)
Synonyms

Basionym
Plectranthus argentatus S.T.Blake, Contr. Queensland Herb. 9: 27. (1971)
Type: Mt. Roberts, prope McPherson Range in Queensland, Blake 19803 (BRI.100693–6); isotypi distribuendi.

References

Paton, A.J., Mwanyambo, M., Govaerts, R.H., Smitha, K., Suddee, S., Phillipson, P.B., Wilson, T.C., Forster, P.I. & Culham, A. 2019. Nomenclatural changes in Coleus and Plectranthus (Lamiaceae): a tale of more than two genera. PhytoKeys 129: 1–158. DOI: 10.3897/phytokeys.129.34988 Open access Reference page.
Govaerts, R. et al. 2020. Coleus argentatus in World Checklist of Selected Plant Families. The Board of Trustees of the Royal Botanic Gardens, Kew. Published on the internet. Accessed: 2020 July 28. Reference page.
International Plant Names Index. 2020. Coleus argentatus. Published online. Accessed: July 28 2020.

Coleus argentatus, synonym Plectranthus argentatus,[1] common name silver spurflower, is a species of flowering plant in the mint family. It is native to rock outcrops and rainforest in the border region of Queensland and New South Wales, Australia. Growing to 1 m (3 ft) tall and broad, it is a spreading deciduous shrub. The hairy leaves are ovate to broad-ovate, 5–11.5 cm long, 3–5.5 cm wide with crenate margins. The hairs give the plant an overall sage green to silvery colour. The flowers are borne on terminal racemes up to 30 cm (12 in) long, and are bluish white.[2] [3]

Originally described by Queensland botanist Stanley Thatcher Blake, its specific epithet argentatus is Latin for "silver",[4] referring to its foliage.
Cultivation

Coleus argentatus is cultivated in temperate regions as an ornamental bedding plant for its attractive silvery foliage. It strikes readily from cuttings, or can be grown from seed as a half-hardy annual. It has gained the Royal Horticultural Society's Award of Garden Merit.[5][6]
Foliage close-up

References

Paton, Alan J.; Mwanyambo, Montfort; Govaerts, Rafaël H.A.; Smitha, Kokkaraniyil; Suddee, Somran; Phillipson, Peter B.; Wilson, Trevor C.; Forster, Paul I. & Culham, Alastair (2019). "Nomenclatural changes in Coleus and Plectranthus (Lamiaceae): a tale of more than two genera". PhytoKeys (129): 1–158. doi:10.3897/phytokeys.129.34988. PMC 6717120. PMID 31523157.
RHS A-Z encyclopedia of garden plants. United Kingdom: Dorling Kindersley. 2008. p. 1136. ISBN 978-1405332965.
Plant profile, NSW Flora Online
Simpson DP (1979). Cassell's Latin Dictionary (5 ed.). London: Cassell Ltd. ISBN 0-304-52257-0.
"RHS Plant Selector - Plectranthus argentatus". Retrieved 15 April 2020.
"AGM Plants - Ornamental" (PDF). Royal Horticultural Society. July 2017. p. 79. Retrieved 2 May 2018.