Difference between revisions of "Acacia wilsonii"
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== General Plant Info == | == General Plant Info == | ||
| + | '''Acacia ''wilsonii''''' is a low, wiry shrub, 0.2-0.3 m high, endemic to Western Australia. It grows on white/yellow sand & lateritic gravel, sandy clay over laterite. | ||
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| + | Relationships not clear but perhaps has some affinities with [[Acacia ridleyana]] ; both species have free sepals and variably united petals, linear, acuminate bracteoles and linear, terete or subterete pods. However, [[Acacia ridleyana]] has pulvinate, flat, much shorter phyllodes with clear articulation between pulvinus and branchlet. Phyllodes that are epulvinate and continuous on the branchlets are not common in section Plurinerves. Both [[Acacia campylophylla]] and [[Acacia chapmanii]] , in this section, have such phyllodes, but they are much shorter than those of [[Acacia wilsonii]] and furthermore, their petals and sepals are free and they have very different pods. | ||
== Geographic distribution == | == Geographic distribution == | ||
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| + | '''Beard’s Provinces''': South-West Province. | ||
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| + | '''IBRA Regions''': Geraldton Sandplains. | ||
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| + | '''IBRA Subregions''': Lesueur Sandplain. | ||
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| + | '''Local Government Areas (LGAs)''': Carnamah, Coorow, Dandaragan. | ||
== Identification == | == Identification == | ||
| + | Prostrate shrub normally 0.2–0.3 m high. Branchlets at first slightly angled, villous to pubescent with minute black resin-hairs intermixed, soon terete and glabrous except for resin-hairs. | ||
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| + | '''Phyllodes''' continuous on branchlets, ascending to erect, shallowly curved to shallowly sigmoid or sinuous, terete, 6.5–22.5 cm long, 1–1.5 mm diam., with curved-acute and innocuous apex, coriaceous to semirigid, glabrous, with 8 distant, strongly raised nerves. | ||
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| + | '''Inflorescences''' simple, 1 (2) per axil; peduncles 4–10 mm long, to 14 mm long in fruit, villous and with minute resin-hairs intermixed; heads globular, 8 mm diam., 24–37-flowered, golden. Flowers 5-merous; sepals 1/2–3/4-united. | ||
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| + | '''Pods''' linear, not constricted between seeds, slightly curved, subterete, to 5.5 cm long, 3–3.5 mm wide, thinly crustaceous, dotted with minute, black resin-hairs. | ||
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| + | '''Seeds''' longitudinal, oblong, 2–3 mm long, dull brown, tuberculate, the tubercles irregular-shaped; aril apical, yellow. | ||
== Alkaloid content == | == Alkaloid content == | ||
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== Links == | == Links == | ||
| + | http://www.worldwidewattle.com/speciesgallery/wilsonii.php?id=14154 | ||
| + | http://www.anbg.gov.au/abrs/online-resources/flora/stddisplay.xsql?pnid=41497 | ||
== References == | == References == | ||
Latest revision as of 13:26, 8 April 2014
Contents
General Plant Info
Acacia wilsonii is a low, wiry shrub, 0.2-0.3 m high, endemic to Western Australia. It grows on white/yellow sand & lateritic gravel, sandy clay over laterite.
Relationships not clear but perhaps has some affinities with Acacia ridleyana ; both species have free sepals and variably united petals, linear, acuminate bracteoles and linear, terete or subterete pods. However, Acacia ridleyana has pulvinate, flat, much shorter phyllodes with clear articulation between pulvinus and branchlet. Phyllodes that are epulvinate and continuous on the branchlets are not common in section Plurinerves. Both Acacia campylophylla and Acacia chapmanii , in this section, have such phyllodes, but they are much shorter than those of Acacia wilsonii and furthermore, their petals and sepals are free and they have very different pods.
Geographic distribution
Beard’s Provinces: South-West Province.
IBRA Regions: Geraldton Sandplains.
IBRA Subregions: Lesueur Sandplain.
Local Government Areas (LGAs): Carnamah, Coorow, Dandaragan.
Identification
Prostrate shrub normally 0.2–0.3 m high. Branchlets at first slightly angled, villous to pubescent with minute black resin-hairs intermixed, soon terete and glabrous except for resin-hairs.
Phyllodes continuous on branchlets, ascending to erect, shallowly curved to shallowly sigmoid or sinuous, terete, 6.5–22.5 cm long, 1–1.5 mm diam., with curved-acute and innocuous apex, coriaceous to semirigid, glabrous, with 8 distant, strongly raised nerves.
Inflorescences simple, 1 (2) per axil; peduncles 4–10 mm long, to 14 mm long in fruit, villous and with minute resin-hairs intermixed; heads globular, 8 mm diam., 24–37-flowered, golden. Flowers 5-merous; sepals 1/2–3/4-united.
Pods linear, not constricted between seeds, slightly curved, subterete, to 5.5 cm long, 3–3.5 mm wide, thinly crustaceous, dotted with minute, black resin-hairs.
Seeds longitudinal, oblong, 2–3 mm long, dull brown, tuberculate, the tubercles irregular-shaped; aril apical, yellow.
Alkaloid content
Extraction
Other uses
Cultivation
Suppliers
Links
http://www.worldwidewattle.com/speciesgallery/wilsonii.php?id=14154
http://www.anbg.gov.au/abrs/online-resources/flora/stddisplay.xsql?pnid=41497
