Phebalium glandulosum

Phebalium glandulosum, commonly known as desert phebalium,[2] is a species of shrub that is endemic to eastern Australia. It has glandular-warty stems covered with silvery to rust-coloured scales, wedge-shaped leaves that are scaly on the lower surface, and yellow flowers arranged in umbels on the ends of branchlets.

Desert phebalium
Phebalium glandulosum in the ANBG
Scientific classification
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Clade: Rosids
Order: Sapindales
Family: Rutaceae
Genus: Phebalium
Species:
P. glandulosum
Binomial name
Phebalium glandulosum
Synonyms[1]

Eriostemon lepidotus var. glandulosus (Hook.) F.Muell. nom. inval., nom. nud.

Habit in Carnarvon National Park

Description

Phebalium glandulosum is a shrub that typically grows to a height of 0.5–2.5 m (1 ft 8 in–8 ft 2 in). It has glandular-warty stems that are densely covered with silvery to rust-coloured scales. It has wedge-shaped leaves that are 3–30 mm (0.12–1.18 in) long and 1–5 mm (0.039–0.197 in) wide on a short petiole. Five to ten pale to bright yellow flowers are arranged in more or less sessile umbels on the ends of branchlets, each flower on a pedicel 2–7 mm (0.079–0.276 in) long. The calyx is hemispherical to top-shaped, 1–1.5 mm (0.039–0.059 in) long, glandular warty and covered with scales on the outside. The petals are 2.5–3 mm (0.098–0.118 in) long and overlap each other. Flowering occurs in spring and the follicles are erect and 3–4 mm (0.12–0.16 in) long.[2][3][4][5]

Taxonomy

The species was first formally described by English botanist William Jackson Hooker in Thomas Mitchell's Journal of an Expedition into the Interior of Tropical Australia in 1848.[6][7]

In 1970, Peter G. Wilson described three subspecies of P. glandulosum in the journal Nuytsia, a further subspecies in 1998 in the same journal and in 2008 Robyn L. Giles described a further three in Australian Systematic Botany. The names of the six subspecies are accepted at the Australian Plant Census:

  • P. glandulosum subsp. angustifolium Paul G.Wilson[8] (N.S.W.)
  • P. glandulosum subsp. eglandulosum (Blakely) Paul G.Wilson[9] (Qld., N.S.W.)
  • P. glandulosum Hook. subsp. glandulosum[10] (S.A., Qld., N.S.W.)
  • P. glandulosum subsp. macrocalyx R.L.Giles[11] (Vic.)
  • P. glandulosum subsp. nitidum Paul G.Wilson[12] (N.S.W.)
  • P. glandulosum subsp. riparium R.L.Giles[13] (Vic.)

Distribution and habitat

Phebalium glandulosum is widespread in heath, forest and mallee and occurs in Queensland, New South Wales, Victoria and South Australia.[2]

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References
  1. "Phebalium glandulosum". Australian Plant Census. Retrieved 19 June 2020.
  2. Weston, Peter H.; Harden, Gwen J. "Phebalium glandulosum". Royal Botanic Garden Sydney. Retrieved 19 June 2020.
  3. Walsh, Nevill. "Phebalium glandulosum". Royal Botanic Gardens, Victoria. Retrieved 19 June 2020.
  4. Wilson, Paul G. (1970). "A Taxonomic Revision of the Genera Crowea, Eriostemon and Phebalium (Rutaceae). Nuytsia 1(1):". Nuytsia. 1 (1): 78. Retrieved 19 June 2020.
  5. Wilson, Paul G. "Phebalium glandulosum". Australian Biological Resources Study, Department of Agriculture, Water and the Environment, Canberra. Retrieved 19 June 2020.
  6. "Phebalium glandulosum". APNI. Retrieved 19 June 2020.
  7. Hooker, William Jackson; Mitchell, Thomas Livingstone (ed.) (1848). Journal of an Expedition into the Interior of Tropical Australia. London: Longman, Brown, Green and Longmans. p. 199. Retrieved 19 June 2020.CS1 maint: extra text: authors list (link)
  8. "Phebalium glandulosum subsp. angustifolium". Australian Plant Census. Retrieved 19 June 2020.
  9. "Phebalium glandulosum subsp. eglandulosum". Australian Plant Census. Retrieved 19 June 2020.
  10. "Phebalium glandulosum subsp. glandulosum". Australian Plant Census. Retrieved 19 June 2020.
  11. "Phebalium glandulosum subsp. macrocalyx". Australian Plant Census. Retrieved 19 June 2020.
  12. "Phebalium glandulosum subsp. nitidum". Australian Plant Census. Retrieved 19 June 2020.
  13. "Phebalium glandulosum subsp. riparium". Australian Plant Census. Retrieved 19 June 2020.
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