Family:
Fabaceae Lindl.
Genus:
Senna Mill.

Senna petersiana (Bolle) Lock

This species is accepted, and its native range is Cameroon to Ethiopia and S. Africa, Madagascar.

[FZ]

Leguminosae, R.K. Brummitt, A.C. Chikuni, J.M. Lock and R.M. Polhill. Flora Zambesiaca 3:2. 2007

Morphology General Habit
Shrub or small tree 2–6 m high, sometimes described as scandent.
Morphology Branches
Branchlets brown, puberulous to pubescent, longitudinally ridged when young.
Morphology Leaves
Leaves paripinnate; stipules 10–15 mm long, leafy, cordate-auriculate to reniform, often caudate-attenuate, pubescent, subpersistent; petiole 1.5–4.5 cm long,>i> pubescent;>i> rachis up to 20 cm long,>i> appressed pubescent, with scattered elongate reddish glands among the hairs, with a stalked botuliform often caducous reddish gland 1.5–2 mm long between each of the proximal 1–4 leaflet pairs; leaflets in 6–10 pairs, 4–7 × 1.5–3.5 cm, the middle ones usually the largest,>i> ovate to ovate-elliptic, base cuneate to rounded or cordate, often slightly asymmetrical, apex acute to acuminate, mucronate,>i> sparsely hairy above, more densely so beneath, with appressed hairs and reddish elongated glands;>i> petiolules up to 1 mm long, appressed-pubescent.
Morphology Reproductive morphology Inflorescences
Inflorescences paniculate, terminal, made up of corymbose racemes; primary inflorescence branches (racemes) up to 9 cm long, subtended by reduced caducous leaves with few pinnae; stipules of these similar to those of foliage leaves, relatively persistent; proximal bracts of racemes very broadly ovate, acuminate, distal ones narrower, all usually densely pubescent, subpersistent; proximal pedicels up to 5 cm long at anthesis; distal ones shorter.>i> Sepals 5, dimorphic, three c.12 × 10 mm, two c.7 × 5 mm,>i> broadly ovate-elliptic,>i> pubescent.
Morphology Reproductive morphology Flowers Corolla
Petals golden yellow, unequal, clawed, the largest up to 22 × 11 mm, oblong, somewhat asymmetrical, rounded at apex, the others broadly elliptic to ovate, rounded or retuse.
Morphology Reproductive morphology Flowers Androecium Stamens
Stamens 10, three large with arcuate fertile anthers 7–10 mm long and filaments 8–12 mm long, four fertile with slightly curved anthers 6–8 mm long and straight filaments c.1 mm long, and three small, probably sterile, with reniform to subspherical anthers and straight filaments 2–4 mm long.
Morphology Reproductive morphology Flowers Gynoecium Pistil
Ovary 10–12 mm long, straight or curved, terete,>i> densely appressed-pubescent with white hairs and reddish glands; style 4.5–5.5 mm long,>i> terete, glabrous; stigma terminal, recessed, surrounded by a fringe of hairs.
Morphology Reproductive morphology Fruits
Pod black with brown margins, linear, 13–24 × 0.8–1.2 cm, straight or irregularly curved, chambered, glabrous or appressed-pubescent, indehiscent.
Morphology Reproductive morphology Seeds
Seeds brown, in a single row,>i> 5–6 × 4 mm, obovate, flattened, with two narrowly elliptic areoles on the narrow faces.

[ILDIS]

International Legume Database and Information Service

Conservation
Not Threatened
Ecology
Africa: Zambezian woodland, Zambezian wooded grassland, Somalia-Masai bushland and thicket, Sudanian woodland
Morphology General Habit
Perennial, Not climbing, Shrub/Tree
Vernacular
Dwarf Cassia, Eared Cassia, Maniboa, Rindisindi, Sangaravatsy, Tsiambaravatsy, Tsileondoza

[FTEA]

Leguminosae, J. B. Gillett, R. M. Polhill & B. Verdcourt. Flora of Tropical East Africa. 1971

Morphology General Habit
Shrub or tree 0.6–12 m. high.
Morphology General Bark
Bark rough, fissured.
Morphology Branches
Branchlets from subglabrous to densely pubescent or sometimes tomentose.
Morphology Leaves
Leaves:petiole eglandular; rhachis with a prominent projecting but rather caducous gland between some or all of the 4–10(–13) pairs of leaflets. Stipules conspicuous, leafy, semi-cordate to reniform, often caudate-attenuate at one end, to 2.5 cm. long, ± persistent. Leaflets lanceolate or ovate-lanceolate, sometimes ovate or ovate-elliptic, almost symmetrical, (2–)2.8–10.3 cm. long, (0.7–)0.9–4.2 cm. wide, gradually ± acuminate, rarely acumen obscure and short.
Morphology Reproductive morphology Inflorescences
Racemes corymbose, aggregated into ± corymbose terminal panicles.
Morphology Reproductive morphology Flowers Calyx
Sepals rounded at apex.
Morphology Reproductive morphology Flowers Corolla
Petals bright yellow, obovate, 1.5–3.2 cm. long, unequal, the largest somewhat oblique and dentate-margined.
Morphology Reproductive morphology Flowers Androecium Stamens
Stamens:3 with large anthers and long filaments, 4 with medium anthers and short filaments, 3 with small rounded anthers and short filaments.
Morphology Reproductive morphology Fruits
Pods ± compressed, linear, 12–25 cm. long, 0.9–1.5 cm. wide, indehiscent, the valves ultimately breaking away from the prominent and transversely cracked sutures.
Morphology Reproductive morphology Seeds
Seeds many, somewhat compressed, ovoid or suborbicular, 5–7 × 4–6 mm., brown, with an olive areole ± 4–5 × 2.5 mm. on each face or marginal.
Habitat
In or on edge of rain-forest, riverine forest, deciduous woodland, coastal evergreen bushland and wooded grassland; 12–2130 m.
Distribution
K3 K5 T1 T4 T6 T7 T8 U1 U2 U3 U4 Z eastern Africa from Ethiopia and the Sudan Republic southwards to Mozambique and the Transvaal, extending westwards to Central African Republic (Haut-Ubangi) and Cameroun Republic

[ILDIS]
Use
Medicine

Native to:

Cameroon, Central African Repu, Ethiopia, Kenya, KwaZulu-Natal, Madagascar, Malawi, Mozambique, Northern Provinces, Rwanda, Sudan, Swaziland, Tanzania, Uganda, Zambia, Zimbabwe

Senna petersiana (Bolle) Lock appears in other Kew resources:

Date Reference Identified As Barcode Type Status Has image?
Jan 1, 2005 Rabefarihy, A.T. [7], Madagascar Cassia petersiana K001276257 No
Rogers, F.A. [8129], Zambia Cassia petersiana K000232407 syntype No
Macaulay [173], Zambia Cassia petersiana K000232408 syntype No
Macaulay [173], Zambia Cassia petersiana K000232409 syntype No
Meller, C.J. [s.n.], Mozambique Cassia petersiana K000232410 No
Forbes [s.n.], South Africa Cassia petersiana K000417590 Unknown type material Yes
Forbes [s.n.], South Africa Cassia petersiana K000417591 Yes

First published in Kew Bull. 43: 340 (1988)

Accepted by

  • Brummitt, R.K., Chikuni, A.C., Lock, J.M. & Polhill, R.M. (2007). 61. Leguminosae Subfamily Caesalpinioideae Flora Zambesiaca 3(2): 1-218. Royal Botanic Gardens, Kew.
  • Darbyshire, I., Kordofani, M., Farag, I., Candiga, R. & Pickering, H. (eds.) (2015). The Plants of Sudan and South Sudan: 1-400. Kew publishing, Royal Botanic Gardens, Kew.
  • Du Puy, D.J., Labat, N.-N., Rabevohitra, R., Villiers, J.-F., Bosser, J. & Moat, J. (2002). The Leguminosae of Madagascar: 1-737. Royal Botanic Gardens, Kew.
  • Germishuizen, G. & Meyer, N.L. (eds.) (2003). Plants of Southern Africa an annotated checklist Strelitzia 14: 1-1231. National Botanical Institute, Pretoria.
  • Kalema, J. & Beentje, H. (2012). Conservation checklist of the trees of Uganda: 1-235. Kew Publishing, Royal Botanic Gardens, Kew.
  • Lock, J.M. (1989). Legumes of Africa a check-list: 1-619. Royal Botanic Gardens, Kew.

Literature

Kew Backbone Distributions

  • Brummitt, R.K., Chikuni, A.C., Lock, J.M. & Polhill, R.M. (2007). 61. Leguminosae Subfamily Caesalpinioideae Flora Zambesiaca 3(2): 1-218. Royal Botanic Gardens, Kew.
  • Fischer, E., Rembold, K., Althof, A. & Obholzer, J. (2010). Annotated checklist of the vascular plants of Kakamega forest, Western province, Kenya Journal of East African Natural History 99: 129-226.
  • Germishuizen, G. & Meyer, N.L. (eds.) (2003). Plants of Southern Africa an annotated checklist Strelitzia 14: 1-1231. National Botanical Institute, Pretoria.
  • Lock, J.M. (1989). Legumes of Africa a check-list: 1-619. Royal Botanic Gardens, Kew.

International Legume Database and Information Service

  • Brenan, J. P. M. (1967). Caesalp. In: Flora Trop. East Africa. Milne-Redhead & Polhill
  • Du Puy, D. J. et al. (2002). The Leguminosae of Madagascar. RBG Kew.
  • Robyns, W. (Ed.) (1952). Flore du Congo Belge, Vol. 3. Mimosoideae, Caesalpinoideae
  • Ross, J. H. (1982). Caesalpinoideae. In: Flora Southern Africa 16, pt. 1. Ross. J. H.
  • Watt, J. M. & Breyer-Brandwijk, M (1962). Medicinal & Poisonous Plants of Southern & Eastern Africa

  • Flora Zambesiaca

    Flora Zambesiaca
    http://creativecommons.org/licenses/by-nc-sa/3.0

  • Flora of Tropical East Africa

    Flora of Tropical East Africa
    http://creativecommons.org/licenses/by-nc-sa/3.0

  • Herbarium Catalogue Specimens

    Digital Image © Board of Trustees, RBG Kew http://creativecommons.org/licenses/by/3.0/

  • International Legume Database and Information Service

    International Legume Database and Information Service (ILDIS) V10.39 Nov 2011
    http://creativecommons.org/licenses/by/3.0

  • Kew Backbone Distributions

    The International Plant Names Index and World Checklist of Selected Plant Families 2022. Published on the Internet at http://www.ipni.org and http://apps.kew.org/wcsp/
    © Copyright 2017 World Checklist of Selected Plant Families. http://creativecommons.org/licenses/by/3.0

  • Kew Names and Taxonomic Backbone

    The International Plant Names Index and World Checklist of Selected Plant Families 2022. Published on the Internet at http://www.ipni.org and http://apps.kew.org/wcsp/
    © Copyright 2017 International Plant Names Index and World Checklist of Selected Plant Families. http://creativecommons.org/licenses/by/3.0