Persoonia bargoensis

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Bargo geebung
Persooniabargoensis3.jpg
Scientific classification OOjs UI icon edit-ltr.svg
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Order: Proteales
Family: Proteaceae
Genus: Persoonia
Species:
P. bargoensis
Binomial name
Persoonia bargoensis
PersooniabargoensisDistMap9.png
Occurrence data from Australasian Virtual Herbarium

Persoonia bargoensis, commonly known as the Bargo geebung, [1] is a species of flowering plant in the family Proteaceae and is endemic to a restricted area of New South Wales. It is an erect shrub with linear to lance-shaped leaves, yellow, tube-shaped flowers and green, pear-shaped fruit.

Contents

Description

Persoonia bargoensis is an erect, bushy shrub that typically grows to a height of 0.6–2.5 m (2 ft 0 in – 8 ft 2 in) with a light covering of brownish hairs on its young branches. The leaves are arranged alternately along the stems, linear to lance-shaped, 8–24 mm (0.31–0.94 in) long, 1–2.3 mm (0.039–0.091 in) wide and paler on the lower surface. The flowers are arranged in groups of up to twenty in leaf axils or on the ends of branchlets that continue to grow after flowering. Each tube-shaped flower is borne on a pedicel 3–7 mm (0.12–0.28 in) long and has yellow tepals 7–10 mm (0.28–0.39 in) long. Flowering occurs from December to January and the fruit is a pear-shaped drupe up to 12 mm (0.47 in) long. [1] [3] [4] [5] [6]

Taxonomy

Persoonia bargoensis was first formally described in 1991 by Peter Weston and Lawrie Johnson of the National Herbarium of New South Wales from material collected near Douglas Park in 1989. [4] [7] They had previously considered it an intermediate form between Persoonia nutans , that is found 40 km (25 mi) to the north, and P. oxycoccoides , found 25 km (16 mi) to the south. However, further study found no evidence of intermediate forms between it and the other two species. [4] Within the genus, P. bargoensis is classified in the Lanceolata group, a group of 58 closely related species with similar flowers but very different foliage. These species will often interbreed with each other where two members of the group occur. [8]

Distribution and habitat

Bargo geebung is found in small scattered patches in an area bordered by Picton and Douglas Park to the north, Yanderra to the south, Cataract River to the east and Thirlmere to the west [1] where it grows on Sydney sandstone and Wianamatta shale soils, 100–300 m (330–980 ft) above sea level. [3] It grows in dry sclerophyll eucalypt forest, under forest red gum ( Eucalyptus tereticornis ) and broad-leaved red ironbark ( E. fibrosa ) with a grassy understory of kangaroo grass ( Themeda triandra ), or more open woodland with such trees as red bloodwood ( Corymbia gummifera ), scribbly gum ( Eucalyptus sclerophylla ), grey gum ( E. punctata ), narrow-leaved stringybark ( E. sparsifolia ) and small-leaved apple ( Angophora bakeri ) with a shrubby understory of plants such as wreath bush-pea ( Pultenaea tuberculata ). [9] The increased light and lack of competing plants means the species adapts preferably to growing on road verges. [1]

Conservation status

This geebung is classified as "vulnerable" under the Australian Government Environment Protection and Biodiversity Conservation Act 1999 and as "endangered" under the New South Wales Government Biodiversity Conservation Act 2016 . The main threats to the species include its small population size, habitat loss and fragmentation and inappropriate maintenance activities. [1] [6]

Related Research Articles

<i>Persoonia</i> Genus of shrubs and small trees in the family Proteaceae

Persoonia, commonly known as geebungs or snottygobbles, is a genus of about one hundred species of flowering plants in the family Proteaceae. Plants in the genus Persoonia are shrubs or small trees usually with smooth bark, simple leaves and usually yellow flowers arranged along a raceme, each flower with a leaf or scale leaf at the base. The fruit is a drupe.

<i>Grevillea laurifolia</i> Species of shrub in the family Proteaceae endemic to eastern Australia

Grevillea laurifolia, commonly known as laurel-leaf grevillea, is a species of flowering plant in the family Proteaceae and is endemic to New South Wales. It is a prostrate, trailing shrub with egg-shaped, heart-shaped or round leaves, and clusters of reddish to deep maroon flowers.

<i>Persoonia nutans</i> Species of flowering plant

Persoonia nutans, commonly known as the nodding geebung, is a plant in the family Proteaceae and is endemic to part of the Sydney region in New South Wales. It is an erect to spreading shrub with linear leaves and yellow flowers on down-turned pedicels.

<i>Persoonia linearis</i> Shrub in the family Proteaceae native to New South Wales and Victoria in eastern Australia

Persoonia linearis, commonly known as the narrow-leaved geebung, is a shrub native to New South Wales and Victoria in eastern Australia. It reaches 3 m (9.8 ft), or occasionally 5 m (16 ft), in height and has thick, dark grey papery bark. The leaves are, as the species name suggests, more or less linear in shape, and are up to 9 cm (3.5 in) long, and 0.1 to 0.7 cm wide. The small yellow flowers appear in summer, autumn and early winter, followed by small green fleshy fruit known as drupes. Within the genus Persoonia, it is a member of the Lanceolata group of 58 closely related species. P. linearis interbreeds with several other species where they grow together.

<i>Persoonia rigida</i> Species of flowering plant

Persoonia rigida, commonly known as the rigid-, hairy- or stiff geebung, is a species of flowering plant in the family Proteaceae and is endemic to south-eastern Australia. It is an erect to low-lying shrub with hairy young branchlets, lance-shaped to spatula-shaped leaves that are hairy when young, and yellow flowers borne in groups of up to twenty on a rachis up to 90 mm (3.5 in) long that continues to grow after flowering.

<i>Persoonia pauciflora</i> Species of flowering plant

Persoonia pauciflora, commonly known as the North Rothbury persoonia, is a plant in the family Proteaceae and is endemic to a small area of New South Wales. It is a small, spreading shrub with bright green, thread-like leaves and a relatively small number of yellow flowers in summer. A recently described species, it is similar to P. isophylla but has fewer and shorter flowers than that species. A very restricted distribution has led to its classification as "critically endangered" under the Australian Government Environment Protection and Biodiversity Conservation Act 1999.

<i>Persoonia myrtilloides</i> Species of flowering plant

Persoonia myrtilloides, commonly known as myrtle geebung, is a plant in the family Proteaceae and is endemic to New South Wales. It is an erect to spreading shrub with elliptic to egg-shaped leaves and yellow flowers in groups of up to forty on a rachis up to 170 mm (6.7 in) long.

<i>Persoonia glaucescens</i> Species of flowering plant

Persoonia glaucescens, commonly known as the Mittagong geebung, is a species of flowering plant in the family Proteaceae and is endemic to New South Wales. It is an erect shrub with smooth bark, hairy young branchlets, lance-shaped leaves with the narrower end towards the base, and yellow flowers. It is the only persoonia in eastern Australia with strongly glaucous leaves.

<i>Persoonia hirsuta</i> Species of flowering plant

Persoonia hirsuta, commonly known as the hairy geebung or hairy persoonia, is a plant in the family Proteaceae and is endemic to eastern New South Wales. It is a hairy, spreading to low-lying shrub with linear, lance-shaped or spatula-shaped leaves and yellow or orange flowers arranged singly or in groups of up to ten on a rachis up to 20 mm (0.79 in) long.

<i>Persoonia acerosa</i> Species of flowering plant

Persoonia acerosa, commonly known as needle geebung, is a species of flowering plant in the family Proteaceae and is endemic to a restricted area of New South Wales. It is a shrub with small, channelled, needle-like leaves, yellow tubular flowers and yellowish-green, pear-shaped fruit.

<i>Persoonia elliptica</i> Species of flowering plant

Persoonia elliptica, commonly known as snottygobble or spreading snottygobble, is a plant in the family Proteaceae and is endemic to the south-west of Western Australia. It is an erect shrub or small tree with egg-shaped or lance-shaped leaves and groups of cylindrical yellow flowers. It usually grows in woodland or forest dominated by jarrah or marri within 50 km (30 mi) of the coast.

<i>Persoonia helix</i> Species of flowering plant

Persoonia helix is a species of flowering plant in the family Proteaceae and is endemic to the south-west of Western Australia. It is an erect to spreading shrub with hairy young branchlets, twisted leaves and bright yellow flowers borne singly or in groups of up to five on a rachis up to 25 mm (0.98 in) long.

<i>Persoonia conjuncta</i> Species of flowering plant

Persoonia conjuncta is a species of flowering plant in the family Proteaceae and is endemic to eastern New South Wales. It is an erect shrub or small tree with narrow elliptic to lance-shaped leaves, yellow, tube-shaped flowers in groups of up to sixteen and green fruit.

<i>Persoonia oleoides</i> Species of flowering plant

Persoonia oleoides is a species of flowering plant in the family Proteaceae and is endemic to north-eastern New South Wales. It is an erect to low-lying shrub with oblong to egg-shaped leaves and yellow flowers in groups of up to twenty-five on a rachis up to 130 mm (5.1 in) long.

<i>Persoonia cuspidifera</i> Species of flowering plant

Persoonia cuspidifera is a species of flowering plant in the family Proteaceae and is endemic to northern New South Wales. It is an erect shrub with spatula-shaped leaves and greenish yellow, tube-shaped flowers in groups of up to twenty-five.

<i>Persoonia microphylla</i> Species of shrub

Persoonia microphylla is a plant in the family Proteaceae and is endemic to New South Wales. It is an erect to prostrate shrub with elliptic to egg-shaped leaves and yellow flowers in groups of up to fourteen on a rachis up to 30 mm (1.2 in) long.

<i>Persoonia iogyna</i> Species of flowering plant

Persoonia iogyna is a species of flowering plant in the family Proteaceae and is endemic to south-eastern Queensland. It is an erect shrub or small tree with hairy young branchlets, narrow elliptical to lance-shaped leaves, yellow flowers and green fruit.

Persoonia volcanica is a species of flowering plant in the family Proteaceae and is endemic to eastern Australia. It is an erect shrub with hairy young branchlets, egg-shaped to oblong leaves, and yellow flowers borne in groups of up to twenty on a rachis up to 180 mm (7.1 in) that usually continues to grow after flowering, each flower with a leaf at its base.

Persoonia cordifolia is a species of flowering plant in the family Proteaceae and is endemic to a restricted area in the south of Western Australia. It is an erect, rounded to spreading shrub with smooth, mottled grey bark, broadly heart-shaped leaves and bright yellow flowers borne in groups of two to eight along a rachis up to 25 mm (0.98 in) long.

<i>Persoonia comata</i> Species of flowering plant

Persoonia comata is a species of flowering plant in the family Proteaceae and is endemic to the south-west of Western Australia. It is an erect, sometimes spreading to low-lying shrub with mostly smooth bark, spatula-shaped to lance-shaped leaves with the narrower end towards the base and yellow flowers usually in groups of ten to fifty along a rachis up to 250 mm (9.8 in) long.

References

  1. 1 2 3 4 5 6 "Bargo Geebung - profile". Department of Environment and Conservation (NSW) Threatened Species website. Department of Environment and Conservation (NSW). 1 September 2005. Retrieved 9 November 2015.
  2. "Persoonia bargoensis". Australian Plant Census. Retrieved 3 October 2020.
  3. 1 2 "Persoonia bargoensis P.H.Weston & L.A.S.Johnson". Flora of Australia Online. Department of the Environment and Heritage, Australian Government.
  4. 1 2 3 Weston, Peter H.; Johnson, Lawrence Alexander Sydney (1991). "Taxonomic changes in Persoonia (Proteaceae) in New South Wales". Telopea. 4 (2): 369–406 [284]. doi: 10.7751/telopea19914929 .
  5. Weston, Peter H. "Persoonia bargoensis". Royal Botanic Garden Sydney. Retrieved 3 October 2020.
  6. 1 2 "Approved Conservation Advice for Persoonia bargoensis" (PDF). Australian Government Department of the Environment. Retrieved 3 October 2020.
  7. "Prostanthera bargoensis". APNI. Retrieved 3 October 2020.
  8. Weston, Peter H. (2003). "Proteaceae subfamily Persoonioideae: Botany of the Geebungs, Snottygobbles and their Relatives". Australian Plants . 22 (175): 62–78 [70]. ISSN   0005-0008.
  9. Benson, Doug; McDougall, Lyn (2000). "Ecology of Sydney Plant Species Part 7b: Dicotyledon families Proteaceae to Rubiaceae". Cunninghamia. 6 (4): 1097. Retrieved 3 October 2020.