SPRINGTIME IN TASMANIA - PART 4
Acacia melanoxylon




 
ACACIA MELANOXYLON                    Mimosaceae
Blackwood

Large erect tree to 30 metres with dense crown and dark furrowed bark on trunk. Phyllodes are dull grey-green, elliptical, straight or curved 4-10 cm long,, 10-25 mm wide, with 3-5 prominent longitudinal veins; glands near base. Dense pale yellow heads, globular, of 30-50 flowers on stout stalks 5-10 mm long, solitary or in short racemes of 2-8 heads. Pods flattish, curved or coiled 4-12 cm long, 6-10 mm broad, margins thickened, slightly constricted between seeds. Suckers readily from damaged roots; young leaves bipinnate. A valuable commercial timber which is used extensively for furniture making, panelling and for craftwork. Note: In recent times it's been discovered that the "powder" formed when
working this wood, can be carcinogenic.  Therefore special care, such as using a mask, needs to be taken at that time. Once the wood is made up and sealed, it is perfectly safe.

Flowering August - October. Widespread, in wet gullies and forests. 
Tas; Vic; NSW; Qld, SA
Information courtesy of Launceston Field Naturalists

Mature seed pods - A. melanoxylon
Acacia melanoxylon seed


 

ACACIA DEALBATA                    Mimosaceae   
Silver Wattle


Tree to 30 m tall with grey mottled smooth bark and felty or hoary branchlets, flowering when very small. Leaves bipinnate, minutely hairy, blue-green, with 10-20 pairs of pinnae, raised glands at base of each pair; smallest leaflets in 30-40 pairs, linear, crowded 4-6cm long. Globular heads each of 25-30 flowers, lemon or bright yellow on hairy stalks 5-6mm long, in long racemes or panicles. Pods light purplish-brown, oblong, smooth, 5-8cm long, 8-10 mm broad, in good seasons forming conspicuous masses. Flowering
July-August.Widespread from coast to mountains, largest in moist valleys and colonising after fires or other disturbances in eucalypt forests. 
Tas, Vic, NSW introduced into SA
Information courtesy of Launceston Field Naturalists


 

Acacia dealbata
Seed pods - A. dealbata
Acacia dealbata seed pods

 
Acacia verticillata

ACACIA VERTICILLATA                  Mimosaceae
Prickly Moses

A wattle with stalked ovoid heads, widespread especially in damp areas, gullies and along creeks. Usually a straggling bush up to 3 m but a small tree in favourable conditions. The
arrangement of the spiky phyllodes (apparent leaves) in rings gives the name verticillata.
These vary in width from 1-4 mm in different forms. The dark green phyllodes and golden flowers make an attractive display along river banks in early Spring.
Flowering September to November. Widespread in damp areas.
Tas; Vic; NSW; SA




ACACIA LEPROSA var. GRAVEOLENS                        Mimosaceae               Varnish Wattle
(previously A. verniciflua)

Attractive, profusely flowering shrubby tree to about 5 m. favouring damp habitats and clearings. The phyllodes are light green, narrow and lance-shaped with two prominent veins, shiny and often sticky. Yellow flowers in dense globular heads on short stalks, 2 or 3 per leaf axil.  Pods elongated, leathery, constricted between seeds. Flowering early Spring.  Propagation from scarified seed.
Tas, SA, Vic, NSW, Qld 

Acacia leprosa var graveolens

ACACIA MUCRONATA var MUCRONATA            Mimosaceae
Acacia mucronata



Found only in Tasmania.  Variable shrub in height and phyllode form.

Phyllodes may be narrow to lanceolate up to 20 cm.

Profuse creamy-yellow flowers in Spring.

Propagation from scarified seed.

Very hardy.


ACACIA GENISTIFOLIA                    Mimosaceae
Acacia genistifolia (upright form)
(Upright form)
This spreading wattle heralds the arrival of Spring, being one of the earliest wattles to flower. It has gone through many name changes including A. diffusa, cuspidata and prostrata.  Its current name refers to the phyllodes (flattened leaf stalk which takes the function of a leaf, the true leaf blade being suppressed) having some similarity to a species of broom, probably Genista anglica.

Acacia genistifolia is a native of Tasmania, NSW and Victoria. It’s a plant that grows in dry sclerophyll habitats and has brilliant yellow ball flowers.  Winifred Curtis, the famous botanist, called it A. diffusa and described it as a variable shrub 2-3m high, but it can be either prostrate or upright. The prostrate form has a spread of about 2m. The form comes true from cuttings. The leaves have pungent points, something to remember when pruning or weeding nearby.
(From a talk by Bruce Champion, APS Hobart)


Acacia genistifolia (prostrate form)
                                                                                        (Prostrate form)


ACACIA SICULIFORMIS                                                            Mimosaceae
Dagger wattle

Acacia siculiformis
A small rigid erect shrub with brown stems.  Ht.1-3m  W.1-2m

Leaves:  Tough, small, dagger-shaped, 1-3cm long, sharply pointed phyllodes with a prominent
central vein.
Flowers: Yellow balls, solitary, axillary, stalkless or stalks to 5mm. Flowering:  Spring.
Fruit:  A flat pod to 3cm long with seeds arranged lengthwise.
Habitat/Distribution: Restricted to moist rocky areas of the east, north-east and Central Plateau of
Tasmania.  Also in Vic and NSW.
Cultivation:  A hardy, adaptable plant providing good nesting sites for birds.  Propagate from treated
seed or cuttings.
Distinguishing features:   Flowers stalkless or with short stalks; flat pods with seeds horizontal or
oblique in pod. 
(Compare A. genistifolia which has longer stalks and seeds arranged longitudinally.)

Information Tasmania’s Natural Flora publication. 



ACACIA RICEANA                                                                             Mimosaceae
Arching Wattle

Acacia riceana
A tall shrub to small tree.  Ht 3-6 m.   W. 2-4 m.

Leaves:  Phyllodes dark green, mostly in clusters, prominent central vein, 1-3cm long, tapering to a
sharp point.
Flowers:  Elongated buds opening to profuse, loose lemon/yellow spikes longer than the phyllodes,
Flowering:  Late winter/spring.
Fruit:  Long, narrow, curved pod, 4-6cm long. Constricted between the seeds.
Habitat/Distribution:  Locally common in shaded, damp gullies of the south.
Cultivation:  Adaptable, tolerates part shade, does not tolerate prolonged dry.  Propagate from treated
seed.

Acacia riceana




PART 1        PART 2            PART 3          PART 4            PART 5            PART 6        PART 7       PART 8

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