Senna clavigera (Domin) Randell

 ALA  NSL [legitimate]
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Randell, B.R. (1 August 1988), Revision of the Cassiinae in Australia. 1. Senna Miller sect. Chamaefistula (Colladon) Irwin and Barneby. Journal of the Adelaide Botanic Gardens 11(1): 39

Nomenclature

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Randell, B.R. & Barlow, B.A. in McCarthy, P.M. (ed.) (1998), Senna. Flora of Australia 12: 128-130, Fig. 84, Map 131
 APC
 NSL
nomenclatural synonym: Cassia sophera var. clavigera Domin: 128
taxonomic synonym: Cassia sophera var. pubescens Benth.: 128
pro parte misapplication Cassia barclayana Sweet var. barclayana by Symon, D.E. (December 1966), A revision of the genus Cassia L. Caesalpiniaceae in Australia. Transactions of the Royal Society of South Australia 90: 89: 128
  Randell, B.R. & Barlow, B.A. in McCarthy, P.M. (ed.) (1998), Senna. Flora of Australia 12: 128-130, Fig. 84, Map 131
 APC
 NSL
nomenclatural synonym: Cassia sophera var. clavigera Domin: 128
taxonomic synonym: Cassia sophera var. pubescens Benth.: 128
pro parte misapplication Cassia barclayana Sweet var. barclayana by Symon, D.E. (December 1966), A revision of the genus Cassia L. Caesalpiniaceae in Australia. Transactions of the Royal Society of South Australia 90: 89: 128

Specimens

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Common Name

Pepper Leaf Senna.

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Description

Herbaceous perennial, erect, to 1.5 m high, glabrous but with the ovary and sometimes the vegetative parts pubescent. Leaves 10–12 cm long including a terete petiole 15–35 mm long; stipules acicular, caducous; leaflets in 4–7 pairs spaced 10–20 mm apart, lanceolate to elliptic, 40–70 mm long, 10–20 mm wide, increasing distally, acute and acuminate; gland 1, near the base of the petiole, sessile, taller than broad. Inflorescence subumbellate, of 4–20 flowers, in upper axils, sometimes forming a loose, many-flowered panicle; peduncle 20–40 mm long; pedicels 12–15 mm long; bracts caducous. Petals to 10 mm long. Fertile stamens 6, with 3 adaxial and 1 abaxial staminodes; fertile filaments 2–4 mm long; fertile anthers 3–4 mm long but slightly unequal, with incurved beaks. Pod cylindric, 4–5 cm long, c. 5 mm diam., curved, entire. Seeds dull.

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Phenology

Flowers all year.

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Biostatus

Native.

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Distribution

Occurs naturally in eastern Queensland and New South Wales. Now possibly weedy in nearby areas.

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Habitat

Naturally occurring in wet sclerophyll forest.

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Representative Herbarium Specimens

Qld: between Lotus and Marlborough, A.C. Beauglehole 3577 (MEL); Baking Board, near Chinchilla, V. Hando 12 (AD).

N.S.W.: near Cobbity trig., 5.5 km N of Cobbitty, R.G. Coveny 7432 (AD); roadside 20 km N of Gloucester towards Nowendoc, B.R. Randell 290 (AD).

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Taxonomic Notes

Closely related to the sympatric Senna barclayana, from which it differs in having larger leaves with erect glands, incurved anther beaks and in being pubescent.

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Illustrations

B.R. Randell, Journal of the Adelaide Botanic Gardens 11: 38, pl. 5f–j (1988); P.M. McCarthy (ed.), Flora of Australia 12: 129, fig. 84F–J (1998).

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Bibliography

Cooper, W. & Cooper, W.T. (2004). Fruits of the Australian Tropical Rainforest. (Nokomis Editions: Melbourne).

Randell, B.R. & Barlow, B.A. (1998). Senna, in McCarthy, P.M. (ed.), Flora of Australia 12: 89–138. (ABRS, Canberra / CSIRO: Melbourne).

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Source

Data derived from Flora of Australia Volume 12 (1998), a product of ABRS, ©Commonwealth of Australia.

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Taxonomy from

Australian Plant Image Index
Senna clavigera by Fagg, M., 24/11/2012 (© Fagg, M.)

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© Copyright Commonwealth of Australia, 2024
Last updated: Unknown; Feb 29, 2024 12:35 Status: Legacy

Author - B.R. Randell, B.A. Barlow

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Cite this profile as: B.R. Randell, B.A. Barlow. Senna clavigera, in (ed.), Flora of Australia. Australian Biological Resources Study, Department of Climate Change, Energy, the Environment and Water: Canberra. https://profiles.ala.org.au/opus/foa/profile/Senna%20clavigera [Date Accessed: 19 September 2025]