Boronia hemichiton, Family Rutaceae, also known as Mt Arthur Boronia, is an erect, woody shrub that grows to 150 cm tall. Branchlets are slightly glandular with small, blunt projections, glands often shiny, and stiff, bristle-like hairs are concentrated between faint leaf decurrencies. The leaves are composed of 3–7 parts, entire in outline, 9–12 mm long, 12–16 mm wide and slightly covered in glandular bristles. The terminal leaflets are 2.5–8 mm long and up to 1 mm wide. The side leaflets are 2–9 mm long. The lower halves of the leaflets are covered by stiff, bristle-like hairs, which is one of the characters that distinguish this species from B. hippopala. Flowers are located in the leaf axils and cluster in groups of 1 to 3. The sepals are small, triangular and green. The petals are pink or white and 4.5–5.5 mm long. Flowering occurs between October and January. Fruit are 2.5–3 mm long, 1.5–2 mm wide and hairless.
Mt Arthur Boronia |
Boronia hemichiton
Status: Vulnerable on the EPBC Act list
Government evidence of impact of climate change:
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Australian Government, Conservation Advice, Boronia hemichiton
Threats The main potential threats to Mt Arthur Boronia include the impact of dieback caused by Phytophthora cinnamomi an inappropriate fire regime and activities that affect its habitat directly; such as roadwork; or indirectly alter the hydrology; for example increased run off and sediment loads from upstream (TSSC; 2005).
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Australian Government, Listing Advices, Boronia hemichiton
Potential threats to this species are considered to be possible infection with the plant pathogen Phytophthora cinnamomi; an inappropriate fire regime; and activities that directly disturb the species habitat (e.g. road works) or indirectly affect its hydrology (e.g. upstream or upslope activities in the upper catchments of nearby rivers that increase runoff and sediment loads).
Fire also reduces the vegetation cover and allows soil temperature and water availability to rise; facilitating an increase in the pathogen.
Fire also reduces the vegetation cover and allows soil temperature and water availability to rise; facilitating an increase in the pathogen.
Potential threats to this species are considered to be possible infection with the plant pathogen Phytophthora cinnamomi; an inappropriate fire regime; and activities that directly disturb its habitat (e.g. road works) or indirectly alter its hydrology (e.g. upstream or upslope activities in the upper catchments of nearby rivers that increase runoff and sediment loads).
Potential threats to this species are considered to be the possible infection with the plant pathogen Phytophthora cinnamomi; an inappropriate fire regime; and activities that either directly affect its habitat (e.g. road works) or indirectly alter its hydrology (e.g. increased runoff and sediment loads).
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