Plectranthus

{{Short description|Family of shrubs}}

{{Automatic taxobox

|image=Plectranthus_fruticans0.jpg

|image_caption=Plectranthus fruticosus

|display_parents=2

|taxon=Plectranthus

|authority=L'Hér.{{cite web |url=http://www.ars-grin.gov/cgi-bin/npgs/html/genus.pl?9545 |title=Genus: Plectranthus L'Hér. |work=Germplasm Resources Information Network |publisher=United States Department of Agriculture |date=2007-10-05 |access-date=2011-02-17 |archive-url=https://web.archive.org/web/20110629214730/http://www.ars-grin.gov/cgi-bin/npgs/html/genus.pl?9545 |archive-date=2011-06-29 |url-status=dead}}

|subdivision_ranks=Species

|subdivision=Many, see text

|synonyms=Ascocarydion G.Taylor

Burnatastrum Briq.

Capitanya Gürke

Dielsia Kudô

Englerastrum Briq.

Germanea Lam.

Holostylon Robyns & Lebrun

Isodictyophorus Briq.

Leocus A.Chev.

Neomuellera Briq.

Perrierastrum Guillaumin

Symphostemon Hiern

|synonyms_ref=|

}}

Plectranthus is a genus of about 85 species of flowering plants from the sage family, Lamiaceae, found mostly in southern and tropical Africa and Madagascar. Common names include spur-flower. Plectranthus species are herbaceous perennial plants, rarely annuals or soft-wooded shrubs, sometimes succulent; sometimes with a tuberous base.

Several species are grown as ornamental plants. The cultivar {{tdes|Mona Lavender}} = 'Plepalila' {{cite web |url=https://www.rhs.org.uk/Plants/201488/Plectranthus-Mona-Lavender-Plepalila-(PBR)/Details |title=Plectranthus {{tdes|Mona Lavender}} = 'Plepalila' |publisher=RHS |access-date=18 January 2021}} has received the Royal Horticultural Society's Award of Garden Merit.

Recent phylogenetic analysis found Plectranthus to be paraphyletic with respect to Coleus, Solenostemon, Pycnostachys and Anisochilus. The most recent treatment of the genus resurrected the genus Coleus, and 212 names were changed from combinations in Plectranthus, Pycnostachys and Anisochilus. Equilabium was segregated from Plectranthus, after phylogenetic studies supported its recognition as a phylogenetically distinct genus.

Etymology

The word plectranthus derives from the Greek πλῆκτρον (plēktron), "anything to strike with, an instrument for striking the lyre, a spear point"[https://www.perseus.tufts.edu/cgi-bin/ptext?doc=Perseus%3Atext%3A1999.04.0057%3Aentry%3D%2383798 πλῆκτρον], Henry George Liddell, Robert Scott, A Greek-English Lexicon, on Perseus + ἄνθος (anthos), "blossom, flower".[http://www.perseus.tufts.edu/hopper/text?doc=Perseus%3Atext%3A1999.04.0057%3Aentry%3Da)%2Fnqos1 ἄνθος], Henry George Liddell, Robert Scott, A Greek-English Lexicon, on Perseus

Species

File:Plectranthus verticillatus 3.JPG in cultivation]]

File:Plectranthus ecklonii.jpg in cultivation]]

Paton et al. (2019) listed 72 species. {{As of|2022|October}}, Plants of the World Online accepted 84:

{{Div col|colwidth=24em}}

{{Div col end}}

=Transferred to ''Coleus''=

Species transferred to Coleus in 2019 include:

=Other species formerly placed in ''Plectranthus''=

  • Anisochilus carnosus (L. f.) Wall. ex Benth. (as P. strobilifer Roxb.)
  • Capitanopsis oreophila (Hedge) Mwany., A.J.Paton & Culham (as P. bipinnatus A.J.Paton)
  • Isodon coetsa (Buch.-Ham. ex D.Don) Kudô (as P. coetsa Buch.-Ham. ex D.Don)
  • Isodon inflexus (Thunb.) Kudô (as P. inflexus (Thunb.) Vahl ex Benth.)
  • Isodon lophanthoides (Buch.-Ham. ex D.Don) H.Hara (as P. striatus Benth.)
  • Isodon rugosus (Wall. ex Benth.) Codd (as P. rugosus Wall. ex Benth.)
  • Isodon sculponeatus (Vaniot) Kudô (as P. sculponeatus Vaniot){{cite web |url=http://www.ars-grin.gov/cgi-bin/npgs/html/splist.pl?9545 |archive-url=https://archive.today/20121211223901/http://www.ars-grin.gov/cgi-bin/npgs/html/splist.pl?9545 |url-status=dead |archive-date=December 11, 2012 |title=GRIN Species Records of Plectranthus |work=Germplasm Resources Information Network |publisher=United States Department of Agriculture |access-date=2011-02-17 }}
  • Tetradenia riparia Hochstetter and Codd (as P. riparius A.Rich.)

References

{{Reflist|refs=

{{Citation |mode=cs1 |last1=Paton |first1=Alan J. |last2=Mwanyambo |first2=Montfort |last3=Govaerts |first3=Rafaël H.A. |last4=Smitha |first4=Kokkaraniyil |last5=Suddee |first5=Somran |last6=Phillipson |first6=Peter B. |last7=Wilson |first7=Trevor C. |last8=Forster |first8=Paul I. |last9=Culham |first9=Alastair |date=2019 |title=Nomenclatural changes in Coleus and Plectranthus (Lamiaceae): a tale of more than two genera |journal=PhytoKeys |issue=129 |pages=1–158 |doi=10.3897/phytokeys.129.34988 |pmc=6717120 |pmid=31523157| name-list-style=amp |doi-access=free }}

}}