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Genus Bursaria Family Pittosporaceae

Description: Small trees or low shrubs, rigid, much-branched, suppressed lateral branchlets often spinose.

Leaves alternate or clustered, linear to cuneate or obovate, margins entire or emarginate or rarely toothed.

Flowers small, solitary or clustered in racemose or paniculate terminal or axillary inflorescences; pedicellate. Sepals free, caducous or persistent. Petals narrow-oblong, white, spreading from base. Stamens free, filaments ovoid. Ovary shortly stipitate.

Capsule flattened, thin-walled/crustaceous, broad-orbicular or obcordate or reniform, dehiscing loculicidally around the edges; seeds few to numerous, not winged, ± reniform, flat.


Distribution and occurrence: World: 6 species, endemic Australia. Australia: all States except N.T.

Text by R. O. Makinson. Key updated by K.L. Gibbons 9 Dec. 2020, modified from existing key from Telford, Edwards And Copeland (2013) Telopea 15: 81-85.
Taxon concept:

 Key to the species 
1Small tree or large shrub, 5–10 m highBursaria spinosa
Erect, sprawling, or multistemmed shrub, usually less than 5 m high2
2Adult leaves 16–43 mm long, 5–12 mm wide; sepals < 2 mm long, caducousBursaria spinosa
Adult leaves 5–19 mm long, up to 4 mm wide; sepals > 2 mm long, persistent
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3
3Young branchlets densely covered with persistent, appressed hairs; occurs on limestone-derived soils; restricted to Wombeyan Caves areaBursaria calcicola
Young branchlets usually with spreading hairs; occurs on sandstone-derived soils
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4
4Sepals 3.5–6 mm long; capsules 5–6 mm long; restricted to Blue Mountains areaBursaria longisepala
Sepals 2.4–3.6 mm long; capsules 6–10 mm long; restricted to Grafton-Coffs Harbour area
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Bursaria cayzerae

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