Flowering class: Dicot
Habit: Tree
Distribution notes: Exotic
Acacia mearnsii De Wild.
🗒 Synonyms
synonym | Acacia decurrens Auct. non Willd. |
synonym | Acacia decurrens var. mollis Auct. non Lindl. |
synonym | Acacia mollissima Sensu auct. |
synonym | Racosperma mearnsii (De Wild.)Pedley |
🗒 Common Names
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📚 Overview
Brief
Dr. N Sasidharan (Dr. B P Pal Fellow), Kerala Forest Research Institute, Peechi
Attributions | Dr. N Sasidharan (Dr. B P Pal Fellow), Kerala Forest Research Institute, Peechi |
Contributors | |
Status | UNDER_CREATION |
Licenses | CC_BY |
References |
A fast growing evergreen tree native to Australia, but now one of the 100 most invasive species in the world. It is valued for its timber and various products that can be extracted from its bark, and has been introduced by agroforestry industries across the world. It continues to be valued as an important plantation species due to returns from timber exports in South Africa and Brazil, where it is grown commercially. It has also become an important source of fuelwood for several rural communities in Africa and Asia.
Its impact as an invasive can be attributed to its ability to produce large quantities of seeds that can survive for long periods of time, as well the development of its large shady crown.
In its native Australia, it plays a crucial role in the natural restoration of soil and vegetation after bush fires.
Certain insects and fungi as agents have proven to be the most preferred forms of biological control, especially the ones that only affect the flowers and fruits of the plants, but not the leaves and bark, thus ensuring that the vegetative parts are still viable for commercial use.
Its impact as an invasive can be attributed to its ability to produce large quantities of seeds that can survive for long periods of time, as well the development of its large shady crown.
In its native Australia, it plays a crucial role in the natural restoration of soil and vegetation after bush fires.
Certain insects and fungi as agents have proven to be the most preferred forms of biological control, especially the ones that only affect the flowers and fruits of the plants, but not the leaves and bark, thus ensuring that the vegetative parts are still viable for commercial use.
samagni
Attributions | |
Contributors | |
Status | UNDER_CREATION |
Licenses | CC_BY |
References |
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Description
Trees, to 15 m high; young parts silky; branchlets semiterete. Leaves bipinnate, alternate, stipulate; rachis 4-12 cm long, slender, pulvinate, pubescent, a gland at the base of the rachis on the upper side; pinnae 8-21 pairs, subopposite, 1.5-6 cm long, slender, a gland between each pairs on the upper side; leaflets 36-90, subsessile, subopposite; lamina 1.5-4 x 0.5-1 mm, linear or linear-oblong, base obtuse, subacute or obliquely truncate, apex obtuse or subacute, margin entire, puberulent, membranous, veins obscure. Flowers bisexual, white or creamy, sessile, heads arranged in axillary or terminal panicles or racemes; calyx 2.5-3 x 2-2.8 mm, ochraceous puberulous; lobes 5, ca. 2 x 1 mm, oblong; corolla 3.5-4 mm long; lobes 5, 2.5-3.5 x 1-2 mm, triangular-oblong; stamens 4-5 mm long; ovary superior, 4.5-5 mm long; style 4-5 mm long. Fruit a pod, 3-10 x 0.5-1 cm, flat, narrow, straight to slightly curved, usually constricted between the seeds, tomentose, blackish-brown.
Dr. N Sasidharan (Dr. B P Pal Fellow), Kerala Forest Research Institute, Peechi
Attributions | Dr. N Sasidharan (Dr. B P Pal Fellow), Kerala Forest Research Institute, Peechi |
Contributors | |
Status | UNDER_CREATION |
Licenses | CC_BY |
References |
Habit: Tree
G. Renu, Sanjana Julias Thilakar, D. Narasimhan, Centre for Floristic Research, Department of Botany, Madras Christian College, Tambaram
Attributions | G. Renu, Sanjana Julias Thilakar, D. Narasimhan, Centre for Floristic Research, Department of Botany, Madras Christian College, Tambaram |
Contributors | |
Status | UNDER_CREATION |
Licenses | CC_BY |
References |
No Data
📚 Nomenclature and Classification
📚 Natural History
Miscellaneous Details
Notes: Western Ghats & Eastern Ghats, Cultivated, Native of Australia
G. Renu, Sanjana Julias Thilakar, D. Narasimhan, Centre for Floristic Research, Department of Botany, Madras Christian College, Tambaram
Attributions | G. Renu, Sanjana Julias Thilakar, D. Narasimhan, Centre for Floristic Research, Department of Botany, Madras Christian College, Tambaram |
Contributors | |
Status | UNDER_CREATION |
Licenses | CC_BY |
References |
No Data
📚 Habitat and Distribution
General Habitat
Raised in plantations
Dr. N Sasidharan (Dr. B P Pal Fellow), Kerala Forest Research Institute, Peechi
Attributions | Dr. N Sasidharan (Dr. B P Pal Fellow), Kerala Forest Research Institute, Peechi |
Contributors | |
Status | UNDER_CREATION |
Licenses | CC_BY |
References |
Description
Global Distribution
Native of Australia, widely planted in Asia
Indian distribution
State - Kerala, District/s: Idukki
Dr. N Sasidharan (Dr. B P Pal Fellow), Kerala Forest Research Institute, Peechi
Attributions | Dr. N Sasidharan (Dr. B P Pal Fellow), Kerala Forest Research Institute, Peechi |
Contributors | |
Status | UNDER_CREATION |
Licenses | CC_BY |
References |
Kerala: Idukki
Tamil Nadu: Dindigul, Salem
G. Renu, Sanjana Julias Thilakar, D. Narasimhan, Centre for Floristic Research, Department of Botany, Madras Christian College, Tambaram
Attributions | G. Renu, Sanjana Julias Thilakar, D. Narasimhan, Centre for Floristic Research, Department of Botany, Madras Christian College, Tambaram |
Contributors | |
Status | UNDER_CREATION |
Licenses | CC_BY |
References |
No Data
📚 Occurrence
No Data
📚 Demography and Conservation
📚 Uses and Management
📚 Information Listing
References
- Acacia decurrens (Wendl.) Willd. var. mollis Lindl., Bot. Reg. 5. t. 371. 1819.
- Acacia mearnsii Wilde, Pl. Bequaert. 3: 61. 1925, "mearnsi"; Sanjappa, Legumes Ind. 50. 1992; Chakrab. & Gangop., Journ. Econ. Tax. Bot. 20: 617. 1996; Sasidh., Fl. Chinnar WLS 118. 1999.
- Flora of Tamil Nadu, VOL. I, 1983
Overview > Brief
- Rangan, H., Kull, C. A., & Alexander, L. (2010). Forest plantations, water availability, and regional climate change: controversies surrounding Acacia mearnsii plantations in the upper Palni Hills, southern India. Regional Environmental Change, 10, 103-117.
- Carruthers, J., Robin, L., Hattingh, J. P., Kull, C. A., Rangan, H., & van Wilgen, B. W. (2011). A native at home and abroad: the history, politics, ethics and aesthetics of acacias. Diversity and Distributions, 17(5), 810-821.
- http://www.issg.org/database/species/ecology.asp?si=51&fr=1&sts=tss&lang=EN
- Wilson, J. R. U., Gairifo, C., Gibson, M. R., Arianoutsou, M., Bakar, B. B., Baret, S., ... & Richardson, D. M. (2011). Risk assessment, eradication, and biological control: Global efforts to limit Australian acacia invasions.
- Chan, J. M., Day, P., Feely, J., Thompson, R., Little, K. M., Norris, C. H., ... & Harbard, J. (2015). Acacia mearnsii industry overview: current status, key research and development issues. In Southern Forests: a Journal of Forest Science (Vol. 77, No. 1, pp. 19-30). NISC-Taylor & Francis.
- http://www.cabi.org/isc/datasheet/2326
- Kull, C. A., Shackleton, C. M., Cunningham, P. J., Ducatillon, C., Dufour‐Dror, J. M., Esler, K. J., ... & Zylstra, M. J. (2011). Adoption, use and perception of Australian acacias around the world. Diversity and Distributions, 17(5), 822-836.
Information Listing > References
- Acacia decurrens (Wendl.) Willd. var. mollis Lindl., Bot. Reg. 5. t. 371. 1819.
- Acacia mearnsii Wilde, Pl. Bequaert. 3: 61. 1925, "mearnsi"; Sanjappa, Legumes Ind. 50. 1992; Chakrab. & Gangop., Journ. Econ. Tax. Bot. 20: 617. 1996; Sasidh., Fl. Chinnar WLS 118. 1999.
- Flora of Tamil Nadu, VOL. I, 1983
Observations on the Nilgiri Marten Martes gwatkinsii (Mammalia: Carnivora: Mustelidae) from Pampadum Shola National Park, the southern Western Ghats, India
Jo
Journal of Threatened TaxaThe lonely endemic Palni Hills Rudraksha Tree Elaeocarpus blascoi Weibel (Magnoliopsida: Malvales: Elaeocarpaceae), Tamil Nadu, India
Jo
Journal of Threatened TaxaNo Data
🐾 Taxonomy
Root | Root |
Kingdom | Plantae |
Phylum | Tracheophyta |
Class | Equisetopsida C. Agardh |
Order | Fabales |
Family | Fabaceae |
Genus | Acacia |
Species | Acacia mearnsii De Wild. |
📊 Temporal Distribution
📷 Related Observations
👥 Groups