Grevillea juniperina: Difference between revisions
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==Cultivars== |
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[[File:Grevilleajuniperinamolonglo.jpg|thumb|left|'Molonglo']] |
[[File:Grevilleajuniperinamolonglo.jpg|thumb|left|'Molonglo']] |
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The botanist Allan Cunningham sent seed of ''G. juniperina'' to England in 1820, resulting in it being grown the following year. Baron von Hugel grew the species in Vienna in 1831.<ref name=olde95/> |
The botanist [[Allan Cunningham (botanist)|Allan Cunningham]] sent seed of ''G. juniperina'' to England in 1820, resulting in it being grown the following year. Baron von Hugel grew the species in Vienna in 1831.<ref name=olde95/> |
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A number of cultivars have been selected for horticultural use, including the following: |
A number of cultivars have been selected for horticultural use, including the following: |
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Revision as of 21:00, 22 September 2014
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| Species: | G. juniperina
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| Grevillea juniperina | |
Grevillea juniperina, commonly known as juniper- or juniper-leaf grevillea, is a plant of the family proteaceae endemic to eastern New South Wales and south-eastern Queensland in Australia. It grows as a small prickly-leaved shrub up to 3 m high.
Description
Grevillea juniperina has a spreading or erect habit and it grows to between 0.2 and 3 metres (8 in to 10 ft) in height. The leaves are prickly and are 0.5 to 3.5 cm long and 0.5 to 6 mm wide. Flowering occurs throughout the year, peaking between mid winter and early summer. The spider-like flowers are red, pink, orange, yellow or greenish.[2][3]
Grevillea molyneuxii is similar in appearance but has a prominent midvein on the leaf undersurface, and G. speciosa has wider leaves with lateral veins and longer pistil.[4]
Taxonomy
The type specimen for this species was collected from Port Jackson area (Sydney district) and was described by botanist Robert Brown in 1810, who gave it the specific epithet juniperina which alludes to its juniper-like foliage.[4] The lectotype was selected by Don MacGillivray in 1993 a collection by George Caley in 1803 11 km northwest of Prospect in what is now Sydney's outer western suburbs.
There are currently seven recognised subspecies:
- G. juniperina subsp. allojohnsonii Makinson - red flowers
- G. juniperina subsp. amphitricha - from the Shoalhaven River area
- G. juniperina subsp. fortis Makinson - mostly within the ACT
- G. juniperina R.Br. subsp. juniperina - endemic to western Sydney, restricted to clay soils from Blacktown west to Penrith and Marsden Park and north to Pitt Town. It is listed as a vulnerable species on Schedule 2 of the Threatened Species Conservation Act 1995 in New South Wales.[5]
- G. juniperina subsp. sulphurea (A.Cunn.) Makinson (formerly var. trinervata)
- G. juniperina subsp. trinervis (R.Br.) (formerly Grevillea trinervis)
- G. juniperina subsp. villosa Makinson - from the Braidwood / Currockbilly area.
Distribution and habitat
Grevillea juniperina subsp. juniperina is found in Cumberland Plain and Castlereagh Woodland communities on clay-loam soils, growing alongside such species as forest redgum (Eucalyptus tereticornis), mugga ironbark (E. sideroxylon), thin-leaved stringybark (E. eugenioides), broad-leaved red ironbark (E. fibrosa), grey box (E. moluccana), white feather honeymyrtle (Melaleuca decora), boxthorn (Bursaria spinosa), sickle wattle (Acacia falcata) and Dillwynia tenuifolia. Grevillea juniperina subsp. sulphurea is found on gravelly alluvial soil alongside Leptospermum species, and G. juniperina subsp. trinervis is found on alluvial soil with poor drainage in woodland or along riverbanks in association with snow gum (Eucalyptus pauciflora), mountain gum (E. dalrympleana), Dillwynia retorta and river lomatia (Lomatia myricoides).[6]
Ecology
A springtail species of Australian origin—Calvatomina superba—was found on Grevillea juniperina cultivated at the Lost Gardens of Heligan in Cornwall.[7]
Cultivars
The botanist Allan Cunningham sent seed of G. juniperina to England in 1820, resulting in it being grown the following year. Baron von Hugel grew the species in Vienna in 1831.[4]
A number of cultivars have been selected for horticultural use, including the following:
- 'Lunar Light' - variegated leaves and orange-pink flowers[8]
- 'Molonglo' is a form with a low spreading habit and larger orange flowers with red styles. It was bred from two disparate forms of juniperina, an erect red-flowered form from around Canberra and a yellow-flowered spreading prostrate form from the western slopes of the Budawang Range in 1964.[9]
References
- ^ "Grevillea juniperina". Australian Plant Name Index (APNI), IBIS database. Centre for Plant Biodiversity Research, Australian Government, Canberra. Retrieved 17 July 2012.
- ^ Makinson, R.O. "Grevillea juniperina R.Br". PlantNET - New South Wales Flora Online. Royal Botanic Gardens & Domain Trust, Sydney Australia. Retrieved 18 July 2012.
- ^ "Grevillea juniperina". Flora of Australia Online. Department of the Environment and Heritage, Australian Government.
- ^ a b c Olde, Peter; Marriott, Neil (1995). The Grevillea Book, vol 2. Sydney: Kangaroo Press. pp. 221–22. ISBN 0-86417-326-1.
{{cite book}}: CS1 maint: multiple names: authors list (link) - ^ "Grevillea juniperina subsp. juniperina" (PDF). Threatened Species Information. National Parks & Wildlife Service NSW. Retrieved 18 July 2012.
- ^ Benson, Doug; McDougall, Lyn (2000). "Ecology of Sydney Plant Species Part 7b: Dicotyledon families Proteaceae to Rubiaceae" (PDF). Cunninghamia. 6 (4): 1017–1202 [1058-59].
{{cite journal}}: CS1 maint: multiple names: authors list (link) - ^ Ardron, Paul A. (2009). Rotherham, Ian (ed.). Exotic and Invasive Plants and Animals (PDF). International Urban Ecology Review. Vol. 4. Sheffield, United Kingdom: Wildtrack Publishing. p. 13. ISBN 978-1-904098-16-4.
- ^ "Grevillea 'Lunar Light'". Description of Registered Cultivars. Australian Cultivar Registration Authority. Retrieved 18 July 2012.
- ^ "Grevillea 'Molonglo'". Description of Registered Cultivars. Australian Cultivar Registration Authority. Retrieved 18 July 2012.
