Scapisenecio pectinatus
In Walls of Jerusalem National Park, Tasmania
Scientific classification Edit this classification
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Clade: Asterids
Order: Asterales
Family: Asteraceae
Genus: Scapisenecio
Species:
S. pectinatus
Binomial name
Scapisenecio pectinatus
(DC.) Schmidt-Leb.
Synonyms[1]
  • Senecio pectinatus DC.

Scapisenecio pectinatus, synonym Senecio pectinatus,[1] commonly known as alpine groundsel, is a species of flowering plant in the aster family.[2] The species occurs in alpine areas of south-eastern Australia in peat-based soils.[3][4] It has divided leaves forming a basal rosette and produces a single yellow flower head (up to 30 mm diameter) on a stalk up to 20 cm high.[3]

Taxonomy

The species was first described by Augustin Pyramus de Candolle in 1838 as Senecio pectinatus.[1] It was transferred to the new genus Scapisenecio in 2020 as a result of a molecular phylogenetic study of Australian species in the tribe Senecioneae.[5]

Two varieties are currently recognised:[1]

  • Scapisenecio pectinatus var. major (F.Muell. ex Belcher) Schmidt-Leb. (Victoria and New South Wales)[6][7]
  • Scapisenecio pectinatus var. pectinatus (Victoria and Tasmania)[6][8] It has small leaves with the tips of the divided segments curving inwards.[4]

A white-flowering variety, formerly Senecio pectinatus var. ochroleucus F.Muell., was promoted to species status in 2004 as Senecio albogilvus I.Thomps.,[9] and then transferred to Scapisenecio as Scapisenecio albogilvus.

References

  1. 1 2 3 4 "Scapisenecio pectinatus (DC.) Schmidt-Leb". Plants of the World Online. Royal Botanic Gardens, Kew. Retrieved 2023-03-28.
  2. ↑ "Senecio pectinatus DC". Atlas of Living Australia. Retrieved 10 January 2012.
  3. 1 2 "Senecio pectinatus (DC.) Benth". PlantNET - New South Wales Flora Online. Royal Botanic Gardens & Domain Trust, Sydney Australia. Retrieved 10 January 2012.
  4. 1 2 "Senecio pectinatus (Asteraceae)". Key to Tasmanian vascular plants. University of Tasmania. Retrieved 10 January 2012.
  5. ↑ Schmidt-Lebuhn, Alexander N.; Zeil-Rolfe, Isabel; Lepschi, Brendan & Gooden, Ben (2020). "Expansion of Lordhowea, and a new genus for scapose, alpine Australian species of Senecioneae (Asteraceae)". Taxon. 69 (4): 756–777. doi:10.1002/tax.12321.
  6. 1 2 Walsh N.G and V. Stajsic. Census of the Vascular Plants of Victoria (Eighth ed.). Royal Botanic Gardens Melbourne. ISBN 978-0-9751362-8-7. Retrieved 10 January 2012.
  7. ↑ "Senecio pectinatus var. major F.Muell. ex Belcher". PlantNET - New South Wales Flora Online. Royal Botanic Gardens & Domain Trust, Sydney Australia. Retrieved 10 January 2012.
  8. ↑ "A Census of the vascular plants of Tasmania" (PDF). Archived from the original (PDF) on 20 July 2011. Retrieved 10 January 2012.
  9. ↑ "Senecio pectinatus". Australian Plant Name Index (APNI), IBIS database. Centre for Plant Biodiversity Research, Australian Government, Canberra. Retrieved 10 January 2012.
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