Boronia gunnii, Family Rutaceae, also known as Gunn’s Boronia, Cataract Gorge Boronia, and River Boronia, is an erect, woody shrub that grows to 120 cm tall. Branchlets are slightly glandular with small, blunt projections, glands often shiny, and stiff, bristle-like hairs are concentrated between faint leaf decurrencies. Leaves are composed of 5–9 parts, entire in outline, 12–32 mm long, 16–50 mm wide, and slightly covered in glandular bristles. Terminal leaflets are 5–16 mm long and up to 2.5 mm wide. The side leaflets are 5–25 mm long and the proximal leaflets are sparsely covered in stiff, bristle-like hairs at the base, or going to hairless. Flowers are located in the leaf axils and cluster in groups of 1–7. Sepals are small, triangular and green and petals are pink or white and 5–8 mm long. Flowering occurs between October and January. Fruit are hairless.
Gunn's Boronia, Cataract Gorge Boronia |
Boronia gunnii
Status: Vulnerable on the EPBC Act list
Government evidence of impact of climate change:
Close all
-
Australian Government, Listing Advices, Boronia gunnii
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 the species include the impact of the plant pathogen Phytophthora cinnamomi; an inappropriate fire regime; permanent flooding of its habitat and the invasion of its habitat by exotic weed species.
Key threats to Gunn’s Boronia include potential impacts from the plant pathogen Phytophthora cinnamomi; an inappropriate fire regime; permanent flooding of its habitat; increasing runoff and sediment loads from upstream activities; and invasion and encroachment by exotic weed species.
Download