Difference between revisions of "Acacia decurrens"

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|genus=Acacia
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|species=decurrens
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| high = ?  <!--- 1m (3 ft) -->
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|common_name=Acacia bark, Early black wattle, Green wattle, Sydney wattle, Wattle bark
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| wide =     <!--- 65cm (25 inches) -->
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|habit=tree
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|height_ref=American Hort Society
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| color = IndianRed
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|origin=Australia (NSW)
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|flower_season=mid summer, late summer, early fall
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'''''Acacia decurrens''''' ('''Acacia bark''', '''Early black wattle''', '''Green wattle''', '''Sydney wattle''', '''Wattle bark''') is a perennial tree or shrub native to eastern [[New South Wales]]. Including [[Sydney]], the [[Greater Blue Mountains Area]], the [[Hunter Valley]] and south west to the [[Australian Capital Territory]].
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It is cultivated throughout Australia and the world, and has naturalised in most Australian states and also in [[Africa]], the [[Americas]], [[Europe]], [[New Zealand]] & the [[Pacific]], the [[Indian Ocean]] area, and [[Japan]].  It grows to a height of 2-10m and it flowers from July to September.<ref>[http://florabase.calm.wa.gov.au/browse/flora?f=163&level=s&id=16975&PHPSESSID=5f37f4a6bc3fbb3d58d92204583eb8ce FloraBase]</ref>
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Acacia decurrens, Willd. Green Wattle. A handsome tree, glabrous or more or less tomentose-pubescent with branches more or less prominently angled: pinnae 8-15 pairs or more (sometimes reduced to 5 or 6); lfts. 30-40 pairs or more, linear, from under 2 to nearly 5 lines long, according to the variety: fls. 20-30 in a head, mostly 5-merous: pods 3-4 in. long, about 1/4in. broad, more or less contracted between the seeds. Wattles and Wattle-barks, p. 55. Brown, For. Fl. of S. Austral.— There is much confusion regarding this group among nurserymen and others.
 
Acacia decurrens, Willd. Green Wattle. A handsome tree, glabrous or more or less tomentose-pubescent with branches more or less prominently angled: pinnae 8-15 pairs or more (sometimes reduced to 5 or 6); lfts. 30-40 pairs or more, linear, from under 2 to nearly 5 lines long, according to the variety: fls. 20-30 in a head, mostly 5-merous: pods 3-4 in. long, about 1/4in. broad, more or less contracted between the seeds. Wattles and Wattle-barks, p. 55. Brown, For. Fl. of S. Austral.— There is much confusion regarding this group among nurserymen and others.
  
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Var. mollis, Lindl. (A. mollissima, Willd.). Black Wattle. A tree 20-50 ft. high, with reddish bark showing under the fissures: pinnae 8-20 pairs, shining on upper surface, 2-6 in. long; lfts. 30-60 pairs, closely crowded, not 1/8in. in length; gland between each pair of pinnae and generally additional ones on internodes between: fl.-clusters in racemes, 30-36 in a head, 5-merous; peduncles 1/8-1/4in. long: pods dark, pubescent. 2—4 in. long, not 1/4in. wide, constricted and contracted between the seeds; seed longitudinal; funicle filiform, enlarged to a light-colored cap over seed; ripe June- Oct. Fie. pale yellow, blooming profusely in June and intermittently at other times. B.R. 371.—Distinguished from var. dealbata by its later blooming period, by its lighter fls., its characteristic pubescent pods and smaller seeds and by the short lfts., shining above, which sit close together.
 
Var. mollis, Lindl. (A. mollissima, Willd.). Black Wattle. A tree 20-50 ft. high, with reddish bark showing under the fissures: pinnae 8-20 pairs, shining on upper surface, 2-6 in. long; lfts. 30-60 pairs, closely crowded, not 1/8in. in length; gland between each pair of pinnae and generally additional ones on internodes between: fl.-clusters in racemes, 30-36 in a head, 5-merous; peduncles 1/8-1/4in. long: pods dark, pubescent. 2—4 in. long, not 1/4in. wide, constricted and contracted between the seeds; seed longitudinal; funicle filiform, enlarged to a light-colored cap over seed; ripe June- Oct. Fie. pale yellow, blooming profusely in June and intermittently at other times. B.R. 371.—Distinguished from var. dealbata by its later blooming period, by its lighter fls., its characteristic pubescent pods and smaller seeds and by the short lfts., shining above, which sit close together.
  
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Var. dealbata, F. v. M. (A. dealbata, Link). Silver Wattle. Fig. 75. A tree 50 or more ft. hind, with smooth bark and gray pubescent branchlets: lvs. silver-gray to light green, 3-6 1/2in. long; pinnae 13-25 pairs; lfts. 30—40 pairs; glands 1 between each pair of pinnae: racemes often compound, 30 fls. in a head, 5-merous; sepals united; petals with faint midrib; peduncles 1/4 in. long: pods 1 1/2-4 1/4 in. long, 3/8-1/2in. wide, smooth, a rich brown; seeds longitudinal; funicle as long as seed, filiform half its distance and ending in silvery club-shaped aril; ripe July, Aug. Fls. Feb., March. A.F. 13:880. R.H. 1896 p. 502.—Mts. in its native country. It is sometimes given specific rank as A. dealbata, but intermediate forms occur.
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Var. dealbata, F. v. M. (A. dealbata, Link). Silver Wattle. A tree 50 or more ft. hind, with smooth bark and gray pubescent branchlets: lvs. silver-gray to light green, 3-6 1/2in. long; pinnae 13-25 pairs; lfts. 30—40 pairs; glands 1 between each pair of pinnae: racemes often compound, 30 fls. in a head, 5-merous; sepals united; petals with faint midrib; peduncles 1/4 in. long: pods 1 1/2-4 1/4 in. long, 3/8-1/2in. wide, smooth, a rich brown; seeds longitudinal; funicle as long as seed, filiform half its distance and ending in silvery club-shaped aril; ripe July, Aug. Fls. Feb., March.—Mts. in its native country. It is sometimes given specific rank as A. dealbata, but intermediate forms occur.
  
 
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==Cultivation==
 
==Cultivation==
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Cultivation of ''Acacia decurrens'' can be started by soaking its seeds in warm water and sowing them outdoors.  The seeds keep their ability to germinate for many years.<ref>[http://books.google.com/books?id=CfDcl2m-6BMC&pg=PA7&lpg=PA7&dq=%22acacia+longifolia%22+uses&source=web&ots=EkNk6Oa_ip&sig=QcXMyBrLsTSqmA1MLErlSFY-s_w#PPA8,M1 Google Books] ''Select Extra-tropical Plants Readily Eligible for Industrial Culture Or Naturalization'' By Ferdinand von Mueller</ref>
  
 
===Propagation===
 
===Propagation===
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==Varieties==
 
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Revision as of 22:57, 11 March 2010


Acacia-decurrens-catalina.jpg


Plant Characteristics
Habit   tree

Height: ⇕ 15 ft"ft" can not be assigned to a declared number type with value 15. to 50 ft"ft" can not be assigned to a declared number type with value 50.
Width: ⇔ 10 ft"ft" can not be assigned to a declared number type with value 10. to 25 ft"ft" can not be assigned to a declared number type with value 25.
Lifespan: ⌛ perennial
Origin: ✈ Australia (NSW)
Bloom: ❀ mid summer, late summer, early fall
Cultivation
Exposure: ☼ sun
Features: ✓ flowers
USDA Zones: 11.5
Flower features: ❀ yellow
Scientific Names

Fabaceae >

Acacia >

decurrens >


Acacia decurrens (Acacia bark, Early black wattle, Green wattle, Sydney wattle, Wattle bark) is a perennial tree or shrub native to eastern New South Wales. Including Sydney, the Greater Blue Mountains Area, the Hunter Valley and south west to the Australian Capital Territory.

It is cultivated throughout Australia and the world, and has naturalised in most Australian states and also in Africa, the Americas, Europe, New Zealand & the Pacific, the Indian Ocean area, and Japan. It grows to a height of 2-10m and it flowers from July to September.[1]


Read about Acacia decurrens in the Standard Cyclopedia of Horticulture 

Acacia decurrens, Willd. Green Wattle. A handsome tree, glabrous or more or less tomentose-pubescent with branches more or less prominently angled: pinnae 8-15 pairs or more (sometimes reduced to 5 or 6); lfts. 30-40 pairs or more, linear, from under 2 to nearly 5 lines long, according to the variety: fls. 20-30 in a head, mostly 5-merous: pods 3-4 in. long, about 1/4in. broad, more or less contracted between the seeds. Wattles and Wattle-barks, p. 55. Brown, For. Fl. of S. Austral.— There is much confusion regarding this group among nurserymen and others.

Var. normalis, Benth. Sydney Black Wattle. Lfts. 1/4-1/3in.long. Restricted range on the coast of Austral. According to Maiden, var. normalis difers from type in having sepals as long as petals and cilia on interior of lobe: in A. decurrens, the petals have a midrib and a short, broadly lobed ciliate calyx.

Var. mollis, Lindl. (A. mollissima, Willd.). Black Wattle. A tree 20-50 ft. high, with reddish bark showing under the fissures: pinnae 8-20 pairs, shining on upper surface, 2-6 in. long; lfts. 30-60 pairs, closely crowded, not 1/8in. in length; gland between each pair of pinnae and generally additional ones on internodes between: fl.-clusters in racemes, 30-36 in a head, 5-merous; peduncles 1/8-1/4in. long: pods dark, pubescent. 2—4 in. long, not 1/4in. wide, constricted and contracted between the seeds; seed longitudinal; funicle filiform, enlarged to a light-colored cap over seed; ripe June- Oct. Fie. pale yellow, blooming profusely in June and intermittently at other times. B.R. 371.—Distinguished from var. dealbata by its later blooming period, by its lighter fls., its characteristic pubescent pods and smaller seeds and by the short lfts., shining above, which sit close together.

Var. dealbata, F. v. M. (A. dealbata, Link). Silver Wattle. A tree 50 or more ft. hind, with smooth bark and gray pubescent branchlets: lvs. silver-gray to light green, 3-6 1/2in. long; pinnae 13-25 pairs; lfts. 30—40 pairs; glands 1 between each pair of pinnae: racemes often compound, 30 fls. in a head, 5-merous; sepals united; petals with faint midrib; peduncles 1/4 in. long: pods 1 1/2-4 1/4 in. long, 3/8-1/2in. wide, smooth, a rich brown; seeds longitudinal; funicle as long as seed, filiform half its distance and ending in silvery club-shaped aril; ripe July, Aug. Fls. Feb., March.—Mts. in its native country. It is sometimes given specific rank as A. dealbata, but intermediate forms occur.

CH


The above text is from the Standard Cyclopedia of Horticulture. It may be out of date, but still contains valuable and interesting information which can be incorporated into the remainder of the article. Click on "Collapse" in the header to hide this text.


Cultivation

Cultivation of Acacia decurrens can be started by soaking its seeds in warm water and sowing them outdoors. The seeds keep their ability to germinate for many years.[2]

Propagation

Do you have propagation info on this plant? Edit this section!

Pests and diseases

Do you have pest and disease info on this plant? Edit this section!

Varieties

Gallery

If you have a photo of this plant, please upload it! Plus, there may be other photos available for you to add.

  • Acacia-decurrens2.jpg

  • photo 1

  • photo 2

  • photo 3

References

External links


  1. ↑ FloraBase
  2. ↑ Google Books Select Extra-tropical Plants Readily Eligible for Industrial Culture Or Naturalization By Ferdinand von Mueller
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