Australian Tropical Rainforest Plants - Online edition

Synostemon albiflorus (Müll.Arg.) Airy Shaw

Herb (herbaceous or woody, under 1 m tall)
Shrub (woody or herbaceous, 1-6 m tall)
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Leaves and flower [not vouchered]. © G. Sankowsky
Flowers [not vouchered]. © G. Sankowsky
Flowers [not vouchered]. © G. Sankowsky
Fruit [not vouchered]. © G. Sankowsky
Leaves [not vouchered]. © G. Sankowsky

Airy Shaw, H.K. (1978), Kew Bulletin 33(1): 37.


Shrub to 2 m tall. Plants monoecious, with separate male and female flowers on the same plant.


Stipules 0.6-1.7 mm long, triangular, cordate, reddish-brown. Stem leaves scale-like (cataphylls), ca. 1.5 mm long. Branch leaf blade 7-34 mm long x 1.5-13 mm wide, elliptic, narrowly obovate to obovate, margins rolled under. Petioles 0.4-1.4 mm.


Inflorescences with both male and female flowers mixed, except towards apex where only female flowers occur. Male flowers 1-4 per axil; pedicel 2-10 mm, glabrous; sepals 6, fused shortly and spreading, elliptical to orbicular, 1.4-2.5 mm long, green with white margins, may be pink tinged, fleshy, glabrous; stamens 3, filaments wholly fused. Female flowers solitary; pedicel in flower 2-15 mm long, in fruit to 25 mm long; sepals 6(-8), free, orbicular or obovate, when flowering 1.2-3 mm long x 1.2-1.8 mm wide, fleshy, glabrous; styles 3(-5), free, pale green, about 0.5 mm long.


Fruit depressed ovoid, 4.5-7 mm long x 5-8 mm wide, green, glabrous, grooved. Seeds cream-pale brown, ridged, flattened, 4-5.2 mm long.


 Features not available.

Distribution and Ecology

Occurs in CYP, NEQ and CEQ, and southwards as far as south-eastern Queensland. Altitudinal range in CYP andCEQfrom near sea level to 900 m. Usually grows in eucalypt open forest with in drier rainforests, often on creek banks.


Sauropus albiflorus (Mull.Arg.) Airy Shaw, Kew Bulletin 35: 671 (1980).  Sauropus albiflorus (Mull.Arg.) Airy Shaw subsp. albiflorus, Kew Bulletin 35: 672(1980). Phyllanthus albiflorus Mull.Arg., Linnaea 34: 70(1865), Type: In Novae Hollandia orientali ad Edgecombe-Bay (Ferd. Muell.! in hb. DC). ad Moreton-Bay (Ferd. Muell.! in hb. DC.).

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