Australian Tropical Rainforest Plants - Online edition

Senna coronilloides (Benth.) Randell


Shrub (woody or herbaceous, 1-6 m tall)
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Leaves and Flowers. © CSIRO
Scale bar 10mm. © CSIRO
10th leaf stage. © CSIRO
Family

Randell, B.R. (1989) Journal of the Adelaide Botanic Gardens 12(2): 205.

Stem

Usually flowers and fruits as a shrub about 1-2 m tall.

Leaves

Stipules linear, about 2-4 mm long. Leaflet blades about 10-25 x 2.5-6 mm, lateral veins difficult to distinguish. Compound leaf rhachis and leaflet petioles clothed in white hairs.

Flowers

Petals about 12 mm long. Stamens ten, nine on very short filaments and one on a longer filament. Ovary stalked, clothed in prostrate hairs, ovules about 20.

Fruit

Pods flat, about 7-12 x 0.5-0.7 cm. Seeds laterally compressed, ellipsoid, about 0.3 x 0.4 mm. Cotyledons much wider and longer than the radicle.

Seedlings

Cotyledons orbicular, about 12 mm diam. First pair of leaves pinnate, each leaf with 4-6 leaflets. At the tenth leaf stage: leaf pinnate with up to 40 leaflets per leaf. Leaflet blades lanceolate, about 20-25 x 5 mm. Stipules linear, about 4 mm long. Seed germination time 26 days.

Distribution and Ecology

Occurs in NEQ, CEQ and southwards to coastal central New South Wales. Altitudinal range from near sea level to about 1000 m. Often grows in brigalow scrub but also found in monsoon forest and vine thickets.

Natural History & Notes

This species is of no grazing significance. Hacker (1990).

Synonyms
Cassia coronilloides Benth., Journal of an Expedition into the Interior of Tropical Australia : 384(1848), Type: St. Georges Bridge Camp, on the Balonne River, [Qld], T. L. Mitchell 426.
RFK Code
3256
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