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Description: Woody perennial herbs or subshrubs.
Leaves entire or lobed, narrow-linear, lanceolate to circular petiolate or sessile, exstipulate.
Inflorescence terminal, compound umbel; bracts and bracteoles small, subulate, sometimes caducous. Flowers bisexual or male, white, cream or pinkish. Sepals inconspicuous or absent. Petals elliptic to ovate, midrib keeled. Stylopodium flat or conical.
Fruit ± compressed laterally; carpophore persistent, undivided (in NSW); mericarps ovoid to ± circular, usually rough to tuberculate; narrowed at the mericarp junction.
Distribution and occurrence: World: c. 26 species, endemic Australia. Australia: all States except Tas.
Text by J. Hart & B.M. Wiecek
| ||Key to the species|| |
|1||Leaves less than 1 mm wide, either undivided, linear or subulate, or trifoliolate with filiform segments less than 0.5 mm wide||2|
|Leaves more than 1 mm wide, undivided or lobed, not 3-foliolate||4|
|2||Stems scabrous to hispid; leaves shortly petiolate||Platysace ericoides|
|Stems glabrous; leaves sessile|
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|3||Leaves 0.5–1 mm wide, undivided; inflorescence erect, peduncles to 25 mm long||Platysace linearifolia|
|Leaves less than 0.5 mm wide, often 3-foliolate with filiform segments; inflorescence lax, peduncles more than 25 mm long|
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|4||Leaves undivided, oblong, elliptic or oblanceolate||5|
|Lower leaves or all leaves deeply or shallowly 3–5-lobed|
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|5||Stems shortly pubescent; leaves narrow- to broad-elliptic or rarely oblanceolate, more than 3.5 mm wide; umbels 15–50 mm diam., with 3–11 or more rays||Platysace lanceolata|
|Stems scabrous to hispid; leaves elliptic-oblong or oblong, to 1.8 mm wide; umbels to 20 mm diam., with 3–6 rays|
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|6||Leaves 12–20 mm long, 5–7 mm wide, with lower leaves or all leaves deeply 3-lobed; lobes 2–4 mm long, c. 1 mm wide; lamina scabrous; fruit bullate-tuberculate||Platysace stephensonii|
|Leaves 6–7 mm long, to 10 mm wide, all with 3–5 shallow lobes; lamina sparsely hispid or villous; fruit sparsely bristly|
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