Banksia L.f.

First published in Suppl. Pl.: 126 (1782), nom. cons.
This genus is accepted
The native range of this genus is New Guinea to Australia.

Descriptions

Timothy M. A. Utteridge and Laura V. S. Jennings (2022). Trees of New Guinea. Kew Publishing. Royal Botanic Gardens, Kew

Distribution
A genus of about 170 species if Dryandra is included as a synonym, 76 species in a strict sense. All are endemic to Australia except one, Banksia dentata L.f., which also occurs in New Guinea and the Aru Islands.
Morphology General Habit
Trees and shrubs to c. 7 m (in New Guinea)
Morphology Leaves
Leaves alternate, occasionally whorled, simple, pinnately lobed, dentate to pinnatisect, or entire, glaucous below
Morphology Reproductive morphology Inflorescences
Inflorescence terminal, dense, many-flowered spikes or heads, oblong to globose, involucral bracts basal, caducous
Morphology Reproductive morphology Flowers
Flowers sessile, paired, each pair subtended by a persistent bract and 2 bracteoles; perianth yellowish (in New Guinea), splitting into 4 segments or on one side only, apex remaining fused and enclosing style end before anthesis; stamens sessile in the tepal lobes; disk glands 4; ovary sessile, ovules 2, style longer than perianth, pollen presenter commonly ribbed
Morphology Reproductive morphology Fruits
Fruit a cone-like woody follicle with valves opening via a horizontal suture to release the seeds, often after fire
Morphology Reproductive morphology Seeds
Seeds 1–2, winged, separated by a 2-winged wedge-shaped false septum.
Ecology
Found in more open habitats such as savannah forest, and grasslands including montane grasslands that are frequently burnt; from sea level to c. 750 m.
Recognition
Banksia dentata is a shrub or small tree with distinctive leaves with strongly dentate margins and a silvery-glaucous underside, and the condensed, cone-like fruit and inflorescence is unmistakeable.
[TONG]

Sources

  • Herbarium Catalogue Specimens

    • 'The Herbarium Catalogue, Royal Botanic Gardens, Kew. Published on the Internet http://www.kew.org/herbcat [accessed on Day Month Year]'. Please enter the date on which you consulted the system.
  • Kew Backbone Distributions

    • The International Plant Names Index and World Checklist of Vascular Plants 2024. Published on the Internet at http://www.ipni.org and https://powo.science.kew.org/
    • © Copyright 2023 World Checklist of Vascular Plants. http://creativecommons.org/licenses/by/3.0
  • Kew Names and Taxonomic Backbone

    • The International Plant Names Index and World Checklist of Vascular Plants 2024. Published on the Internet at http://www.ipni.org and https://powo.science.kew.org/
    • © Copyright 2023 International Plant Names Index and World Checklist of Vascular Plants. http://creativecommons.org/licenses/by/3.0
  • Kew Science Photographs

    • Copyright applied to individual images
  • Trees of New Guinea

    • Trees of New Guinea
    • http://creativecommons.org/licenses/by-nc-sa/3.0