Grevillea parviflora

{{short description|Species of shrub in the family Proteaceae endemic to New South Wales, Australia}}

{{Use dmy dates|date=July 2019}}

{{Speciesbox

|image = Grevillea parviflora.jpg

|image_caption = In Budawang National Park

|genus = Grevillea

|species = parviflora

|authority = R.Br.{{cite web|title=Grevillea parviflora|url= https://biodiversity.org.au/nsl/services/apc-format/display/110488|publisher=Australian Plant Census|access-date=8 August 2022}}

|synonyms =

}}

Grevillea parviflora, commonly known as small-flower grevillea,{{cite web |title=Approved Conservation Advice for Grevillea parviflora subsp. parviflora (Small-flower Grevillea) |url=https://www.environment.gov.au/biodiversity/threatened/species/pubs/64910-conservation-advice.pdf |publisher=Australian Government Department of Agriculture, Water and the Environment |access-date=9 August 2022}} is a species of flowering plant in the family Proteaceae and is endemic to the Sydney region of eastern New South Wales. It is a low, dense, spreading to erect shrub with more or less linear leaves and white flowers with a red style that sometimes turns red as it ages.

Description

Grevillea parviflora is a dense, spreading to erect shrub that typically grows to a height of {{cvt|1|m}} or less and sometimes forms a rhizome. Its leaves are more or less linear, mostly {{cvt|15–35|mm}} long and {{cvt|0.8–1|mm}} wide with the edges turned down or rolled, the lower surface silky hairy when visible. The flowers are arranged in groups of 4 to 14 on the ends of branches, the groups usually shorter than the nearby leaves. The flowers are white with rust-coloured hairs, the style sometimes turning red with age, the pistil usually {{cvt|4.5–6.5|mm}} long. Flowering occurs from July to December and the fruit is a glabrous, warty follicle {{cvt|8–10|mm}} long.{{cite web |last1=Makinson |first1=Robert O. |title=Grevillea parviflora |url=https://plantnet.rbgsyd.nsw.gov.au/cgi-bin/NSWfl.pl?page=nswfl&lvl=sp&name=Grevillea~parviflora |publisher=Royal Botanic Garden Sydney |access-date=30 July 2022}}{{cite web |title=Grevillea parviflora |url=https://profiles.ala.org.au/opus/foa/profile/Grevillea%20parviflora |publisher=Australian Biological Resources Study, Department of Agriculture, Water and the Environment: Canberra |access-date=8 August 2022}}

Taxonomy

Grevillea parviflora was first formally described in 1810 by Robert Brown in Transactions of the Linnean Society of London.{{cite web|title=Grevillea parviflora|url= https://id.biodiversity.org.au/instance/apni/542508|publisher=APNI|access-date=8 August 2022}}{{cite journal |last1=Brown |first1=Robert |title=On the Proteaceae of Jussieu |journal=Transactions of the Linnean Society of London |date=1810 |volume=10 |issue=1 |page=171 |url=https://www.biodiversitylibrary.org/item/46585#page/195/mode/1up |access-date=8 August 2022}} The specific epithet (parviflora) means "small-flowered".{{cite book |last1=Sharr |first1=Francis Aubi |last2=George |first2=Alex |title=Western Australian Plant Names and Their Meanings |date=2019 |publisher=Four Gables Press |location=Kardinya, WA |isbn=9780958034180 |page=271 |edition=3rd}}

In 2000, Robert Owen Makinson described two subspecies of G. parviflora in the Flora of Australia, and the names are accepted by the Australian Plant Census:

  • Grevillea parviflora subsp. parviflora Makinson{{cite web|title=Grevillea parviflora subsp. parviflora|url= https://biodiversity.org.au/nsl/services/apc-format/display/147204|publisher=Australian Plant Census|access-date=9 August 2022}} has more or less erect main branches, leaves mostly {{cvt|0.8–1.3|mm}} wide and the "stalk" of the ovary {{cvt|1.0–1.2|mm}} long.{{cite web |last1=Makinson |first1=Robert O. |title=Grevillea parviflora subsp. parviflora |url=https://plantnet.rbgsyd.nsw.gov.au/cgi-bin/NSWfl.pl?page=nswfl&lvl=in&name=Grevillea~parviflora~subsp.+parviflora |publisher=Royal Botanic Garden Sydney |access-date=9 August 2022}}{{cite web |title=Grevillea parviflora subsp. parviflora |url=https://profiles.ala.org.au/opus/foa/profile/Grevillea%20parviflora%20subsp.%20parviflora |publisher=Australian Biological Resources Study, Department of Agriculture, Water and the Environment: Canberra |access-date=9 August 2022}}
  • Grevillea parviflora R.Br. subsp. supplicans{{cite web|title=Grevillea parviflora subsp. supplicans|url= https://biodiversity.org.au/nsl/services/apc-format/display/156270|publisher=Australian Plant Census|access-date=9 August 2022}} has more or less spreading main branches, leaves mostly {{cvt|0.6–2|mm}} wide and the "stalk" of the ovary {{cvt|0.5–0.6|mm}} long.{{cite web |last1=Makinson |first1=Robert O. |title=Grevillea parviflora subsp. supplicans |url=https://plantnet.rbgsyd.nsw.gov.au/cgi-bin/NSWfl.pl?page=nswfl&lvl=in&name=Grevillea~parviflora~subsp.+supplicans |publisher=Royal Botanic Garden Sydney |access-date=9 August 2022}}{{cite web |title=Grevillea parviflora subsp. supplicans |url=https://profiles.ala.org.au/opus/foa/profile/Grevillea%20parviflora%20subsp.%20supplicans |publisher=Australian Biological Resources Study, Department of Agriculture, Water and the Environment: Canberra |access-date=9 August 2022}}

Distribution and habitat

This grevillea grows heath or shrubby or heathy woodland in the Sydney region. Subspecies parviflora is mostly found west and south of Sydney between Camden, Appin and Cordeaux Dam with disjunct populations near Putty, Cessnock and Cooranbong. Subspecies supplicans occurs north-west of Sydney near Arcadia, Maroota and Marramarra National Park.

Conservation status

Subspecies parviflora is listed as "vulnerable" under the Australian Government Environment Protection and Biodiversity Conservation Act 1999 and the New South Wales Government Biodiversity Conservation Act 2016 and subsp. supplicans as "endangered" under the Biodiversity Conservation Act 2016.

References