Difference between revisions of "Acacia octonervia"
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== General Plant Info == | == General Plant Info == | ||
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| + | '''Acacia ''octonervia''''' is a spreading shrub to 1m high, endemic to Australia. It grows in rocky sand, rocky loam or sandy clay, in open mallee, dense low heath and open dwarf scrub, and has light-golden flowers which are present from August to October. | ||
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| + | A member of the ‘A. sulcata group’ and most nearly related to [[Acacia sulcata]] which has six- or seven-nerved phyllodes, caducous stipules, heads with 10–15 flowers and commonly mottled seeds. | ||
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== Geographic distribution == | == Geographic distribution == | ||
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| + | '''Acacia ''octonervia''''' is distributed in south-west Western Australia, restricted to the area between the Fitzgerald and Young Rivers, with an outlier near Boxwood Hill. | ||
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| + | '''Beard’s Provinces''': South-West Province. | ||
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| + | '''IBRA Regions''': Esperance Plains, Mallee. | ||
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| + | '''IBRA Subregions''': Eastern Mallee, Fitzgerald, Recherche, Western Mallee. | ||
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| + | '''Local Government Areas (LGAs)''': Esperance, Gnowangerup, Jerramungup, Ravensthorpe. | ||
== Identification == | == Identification == | ||
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| + | Glabrous, spreading shrub 0.1–0.5 (- 1) m, high. | ||
| + | Branchlets brownish red, sometimes nitid. Stipules persistent, narrowly triangular, 1.5–2 mm long. | ||
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| + | '''Phyllodes''' erect, straight or weakly curved, terete, commonly 1–2 cm long, 1–1.5 mm diam., obtuse-mucronulate, rigid, dark green, with 8 distant, raised nerves; stomata raised; gland inconspicuous, 4–10 mm above pulvinus at junction of 2 adaxial nerves. | ||
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| + | '''Inflorescences''' simple, 1 or 2 per axil; peduncles commonly 7–12 mm long; basal bracts rostriform; heads globular, 3–4 mm diam., 20-flowered, light golden. Flowers 5-merous; sepals free. Flowers Aug - Oct | ||
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| + | '''Pods''' narrowly oblong, undulate, to 2.5 cm long, 3 mm wide, coriaceous, somewhat nitid. | ||
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| + | '''Seeds''' longitudinal, ovate or widely elliptic, 2–2.5 mm long, subnitid, brown; aril subterminal. | ||
== Alkaloid content == | == Alkaloid content == | ||
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== Cultivation == | == Cultivation == | ||
| + | Grows in sandy clay, gravelly sand or loam. | ||
== Suppliers == | == Suppliers == | ||
== Links == | == Links == | ||
| + | http://florabase.dpaw.wa.gov.au/browse/profile/13507 | ||
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| + | http://www.worldwidewattle.com/speciesgallery/octonervia.php?id=13507 | ||
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== References == | == References == | ||
Latest revision as of 08:21, 8 April 2014
Contents
General Plant Info
Acacia octonervia is a spreading shrub to 1m high, endemic to Australia. It grows in rocky sand, rocky loam or sandy clay, in open mallee, dense low heath and open dwarf scrub, and has light-golden flowers which are present from August to October.
A member of the ‘A. sulcata group’ and most nearly related to Acacia sulcata which has six- or seven-nerved phyllodes, caducous stipules, heads with 10–15 flowers and commonly mottled seeds.
Geographic distribution
Acacia octonervia is distributed in south-west Western Australia, restricted to the area between the Fitzgerald and Young Rivers, with an outlier near Boxwood Hill.
Beard’s Provinces: South-West Province.
IBRA Regions: Esperance Plains, Mallee.
IBRA Subregions: Eastern Mallee, Fitzgerald, Recherche, Western Mallee.
Local Government Areas (LGAs): Esperance, Gnowangerup, Jerramungup, Ravensthorpe.
Identification
Glabrous, spreading shrub 0.1–0.5 (- 1) m, high. Branchlets brownish red, sometimes nitid. Stipules persistent, narrowly triangular, 1.5–2 mm long.
Phyllodes erect, straight or weakly curved, terete, commonly 1–2 cm long, 1–1.5 mm diam., obtuse-mucronulate, rigid, dark green, with 8 distant, raised nerves; stomata raised; gland inconspicuous, 4–10 mm above pulvinus at junction of 2 adaxial nerves.
Inflorescences simple, 1 or 2 per axil; peduncles commonly 7–12 mm long; basal bracts rostriform; heads globular, 3–4 mm diam., 20-flowered, light golden. Flowers 5-merous; sepals free. Flowers Aug - Oct
Pods narrowly oblong, undulate, to 2.5 cm long, 3 mm wide, coriaceous, somewhat nitid.
Seeds longitudinal, ovate or widely elliptic, 2–2.5 mm long, subnitid, brown; aril subterminal.
Alkaloid content
Extraction
Other uses
Cultivation
Grows in sandy clay, gravelly sand or loam.
Suppliers
Links
http://florabase.dpaw.wa.gov.au/browse/profile/13507
http://www.worldwidewattle.com/speciesgallery/octonervia.php?id=13507
