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Boronia barkeriana F.Muell.
Family Rutaceae
Common name: Barker's Boronia

Boronia barkeriana F.Muell. APNI*

Description: Shrub 0.2–1 m high; branchlets glabrous, often reddish.

Leaves 1-foliolate, lamina narrow-elliptic to obovate or oblanceolate, 10–33 mm long, 2–10 mm wide, apex acute to acuminate, margins toothed, glabrous, often reddish on lower surface and along margins; ± sessile.

Inflorescences terminal, 2–8-flowered; pedicels 4–18 mm long; bracts caducous; bracteoles vestigial. Calyx glabrous, falling in immature fruit. Petals 6–11 mm long, imbricate, bright to mauve-pink, glabrous, not persistent in fruit.

Cocci glabrous.


Flowering: September–May.

Distribution and occurrence: Grows in moist places on sandstone, north from Braidwood district.
NSW subdivisions: CC, SC, CT, ST, ST
Other Australian states: Qld
AVH map***

 Key to the subspecies 
1Sepals 1.5–3 mm wide, triangular; inner surface of petals glabrescent to sparsely and minutely pilose; apex of pedicels c. 1 mm wide.2
Sepals 3.5–6 mm wide, ovate; inner surface of petals glabrous; apex of pedicels c. 1.5–2 mm wide. Leaves obovate to oblanceolate, 12–23 mm long, 4–9 mm wide, larger leaves with length:breadth ratio of 2.4–3.3:1, margins toothed. Inflorescences 1–3-flowered; pedicels 11–15 mm long. Petals 6–11 mm long.subsp. gymnopetala
2Leaves elliptic to oblanceolate to obovate, margins distinctly toothed, larger leaves <4 times as long as broad. Leaves elliptic to obovate or oblanceolate, usually 16–30 mm long and 4–11 mm wide, rarely smaller, larger leaves with length:breadth ratio of 2.5–4:1. Inflorescences 3–9-flowered; pedicels 8–14(-23) mm long. Petals 6–8 mm long.subsp. barkeriana
Leaves usually narrow-elliptic to narrow-oblanceolate to narrow-obovate, margins entire to slightly toothed, larger leaves >4 times as long as broad. Leaves narrow-elliptic to narrow-obovate, mostly 15–33 mm long, 1.5–6.5 mm wide, larger leaves with length:breadth ratio of 4–8:1. Inflorescences usually 3–8-flowered (range 1–12 flowers); pedicels 5–14 mm long. Petals 5–10 mm long.
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subsp. angustifolia

APNI* Provides a link to the Australian Plant Name Index (hosted by the Australian National Botanic Gardens) for comprehensive bibliographic data
***The AVH map option provides a detailed interactive Australia wide distribution map drawn from collections held by all major Australian herbaria participating in the Australian Virtual Herbarium project.

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