Australian Tropical Rainforest Plants - Online edition

Spartothamnella juncea (A.Cunn. ex Walp.) Briq.

Herb (herbaceous or woody, under 1 m tall)
Shrub (woody or herbaceous, 1-6 m tall)
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Leaves and Flowers. © CSIRO
Scale bar 1mm. © CSIRO

Briquet, J.I. in Engler, H.G.A. & Prantl, K.A.E. (1895) Die Naturlichen Pflanzenfamilien 4(3a) : 161.

Common name

Square-stemmed Broom


Flowers and fruits as a shrub about 1 m tall, sometimes flowers when smaller.


Stems and twigs 4-angled or longitudinally ribbed. Leaves sometimes absent, if present, leaf blades small and inconspicuous, about 3-10 mm long, sessile or with a petiole about 0.2-0.5 mm long. Small yellow glands visible on both the upper and lower surfaces of the leaf blade. Lateral veins not visible.


Flowers small, calyx about 2 mm long, corolla scarcely exceeding the calyx. Outer and inner surfaces of the calyx and the outer surface of the corolla clothed in very small, globose, cream or pale yellow glands. Apex of the ovary clothed in similar glands.


Fruits small, globular, about 2-4 mm diam., separating into four 1-seeded pyrenes.


Features not available.

Distribution and Ecology

Endemic to Australia, occurs in NEQ, CEQ and southwards as far as south-eastern New South Wales. Altitudinal range in NEQ from 200-600 m. Grows in vine thickets, monsoon forest and similar vegetation types.

Spartothamnus junceus Walp., Repertorium Botanices Systematicae 6: 694(1847).
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