Ptilotus nobilis (Lindl.) F.Muell.

Fragm. 6: 227 (1868) APNI

Taxonomic status:Accepted

Occurrence status:Present

Establishment means:Native

Deeply taprooted herb with several stout, erect, simple branches to c. 40 cm high. Stems glabrous. Basal leaves obovate to oblanceolate, 5–14 cm long, 1–3.5 cm wide, glabrous, thick; stem leaves similar but smaller. Spike erect, cylindric, 5–12 cm long, 4–5 cm diam., dense, yellow-green; bract ovate, c. 1 cm long, acute or acuminate with mucro 0.5–1 mm long; bracteoles similar to bract; perianth 20–25 mm long; tepals united at base into a hardened cup c. 2 mm long, otherwise free, outer surface with long, silky hairs in the distal half, overlying a denser layer of short barbed hairs that extend to the base (where slightly longer), inner surface glabrous except for a loose woolly tuft at base; fertile stamens 3 or 4; ovary supported on stipe as long as basal cup of perianth, sparsely pubescent at summit, style virtually central, slightly sigmoidal, 16–20 mm long. Flowers Aug.–Dec.

DunT, Gold, GGr, LoM, MuF, MuM, MSB, NIS, RobP, VRiv, VVP, Wim. All mainland States. Apparently very rare in Victoria and apparently confined to Eucalyptus largiflorens woodlands on clayey soils on the Murray River floodplain from near Red Cliffs to about Merbein. Sometimes locally abundant following good rains or floods.

A study by Lee et al. (2007) united P. nobilis and P. exaltatus on molecular grounds, but a morphological and ecological investigation by Hammer et al. (2017) separated the two species. In Victoria at least, the two species are readily distinguishable and are maintained here.

Created by: Andre Messina, 2015-05-11
Updated by: Neville Walsh, 2018-10-15
 
References

Hammer, T.A.; Macintyre, P.D.; Nge, F.J.; Davis, R.W.; Mucina, L. & Thiele, K.R. (2018). The noble and the exalted: a multidisciplinary approach to resolving a taxonomic controversy within Ptilotus (Amaranthaceae). , Australian Systematic Botany 31(3): 273, 274.

Lee, K.K.; Johnstone, M.E.; Harrison, D.K.; Williams, R.R. (2007). Molecular taxonomic clarification of Ptilotus exaltatus and Ptilotus nobilis (Amaranthaceae), Australian Systematic Botany 20: 72-81.

Hero image
Distribution map
life Life
kingdom Plantae
phylum Tracheophyta
superorder Caryophyllanae
family Amaranthaceae
genus Ptilotus
Higher taxa

Victoria

Source: AVH (2014). Australia's Virtual Herbarium, Council of Heads of Australasian Herbaria, <http://avh.chah.org.au>. Find Ptilotus nobilis in AVH ; Victorian Biodiversity Atlas, © The State of Victoria, Department of Environment and Primary Industries (published Dec. 2014) Find Ptilotus nobilis in Victorian Biodiversity Atlas
  Bioregion Occurrence status Establishment means
Lowan Mallee present native
Murray Mallee present native
Wimmera present native
Victorian Volcanic Plain present native
Victorian Riverina present native
Murray Scroll Belt present native
Robinvale Plains present native
Murray Fans present native
Goldfields present native
Greater Grampians present native
Dundas Tablelands present native
Northern Inland Slopes present native

State distribution

Distribution map
State
Western Australia
Northern Territory
South Australia
Queensland
New South Wales
Victoria