African senna Cassia didymobotrya, copyright Forest & Kim Starr.

Belongs within: Fabales.

Cassia is a tropical genus of trees and large shrubs producing elongate, indehiscent fruits.

Characters (from Flora of China): Trees or large shrubs. Leaves spirally arranged, often distichous, abruptly pinnate; rachis and petioles without glands; leaflets opposite, without stipels. Flowers in terminal panicles on main shoots or racemes on short side shoots; pedicels with 2 bracteoles at or shortly above base. Calyx 5-merous; sepals reflexed at anthesis. Corolla zygomorphic; petals 5. Stamens 10; filaments of 3 abaxial antesepalous stamens sigmoidally curved, usually longer than their anthers, dehiscent by slits; remaining 7 filaments straight and short, with anthers mostly dehiscent by basal pores. Legume elongate, cylindric or compressed, indehiscent. Seeds numerous, 1- or 2-seriate; funicle filiform.

    |--C. absus P03
    |--C. alata BB07
    |--C. aphylla S00
    |--C. auriculata RS02
    |--C. brewsteri B00
    |--C. chamaechrista A37
    |--C. circinata M65
    |--C. crotolarioides BTA75
    |--C. didymobotrya B00
    |--C. fistula P03
    |--C. grandis B14
    |--C. javanica B00
    |--C. kleinii SR07
    |--C. leschenaultiana P88
    |--C. mimosoides P03
    |--C. nigricans HK98
    |--C. obtusifolia C55
    |--C. occidentalis M65
    |    |--C. o. var. occidentalis M65
    |    `--C. o. var. schinifolia M65
    |--C. pleurocarpa C16
    |--C. senna B-L97
    |--C. tomentella B00
    |--C. tora BB07
    `--C. venusta Z94

*Type species of generic name indicated


[A37] Alsterlund, J. F. 1937. The larva of Chalcodermus collaris Horn with a key to related species. Proceedings of the Entomological Society of Washington 39 (8): 216–222.

[BB07] Baishya, A. K., & P. J. Bora. 2007. Cross community ethno-medico botany of Dibru-Saikhowa Biosphere Reserve, Assam. Bulletin of the Botanical Survey of India 49: 121–154.

[BTA75] Baker, E. W., D. M. Tuttle & M. J. Abbatiello. 1975. The false spider mites of northwestern and north central Mexico (Acarina: Tenuipalpidae). Smithsonian Contributions to Zoology 194: 1–23.

[B14] Bouchard, P. (ed.) 2014. The Book of Beetles: A lifesize guide to six hundred of nature's gems. Ivy Press: Lewes (United Kingdom).

[B-L97] Bouillon-Lagrange, C. 1797. Analyse du séné de la palthe (Cassia senna L.). Bulletin des Sciences, par la Societé Philomathique de Paris 9: 67–68.

[B00] Braby, M. F. 2000. Butterflies of Australia: their identification, biology and distribution vol. 1. CSIRO Publishing: Collingwood (Victoria).

[C16] Cambage, R. H. 1916. Notes on the native flora of tropical Queensland. Journal and Proceedings of the Royal Society of New South Wales 49 (3): 389–447, pls 57–61.

[C55] Candolle, A. de. 1855. Géographie Botanique Raisonée: Ou exposition des faits principaux et des lois concernant la distribution géographique des plantes de l’époque actuelle vol. 2. Librairie de Victor Masson: Paris.

[HK98] Hahn, A., & H. Kusserow. 1998. Spatial and temporal distribution of algae in soil crusts in the Sahel of W Africa: Preliminary results. Willdenowia 28: 227–238.

[M65] Michener, C. D. 1965. A classification of the bees of the Australian and South Pacific regions. Bulletin of the American Museum of Natural History 130: 1–362.

[P03] Paul, T. K. 2003. Botanical observations on the Purulia pumped storage hydropower project area, Bagmundi Hills, Purulia district, West Bengal. Bulletin of the Botanical Survey of India 45: 121–142.

[P88] Polunin, I. 1988. Plants and Flowers of Malaysia. Times Editions: Singapore.

[RS02] Radhakrishna, S., & M. Singh. 2002. Activity schedule and habitat use of the slender loris Loris tardigradus lydekkerianus. Journal of the Bombay Natural History Society 99 (3): 400–407.

[SR07] Sankar, R. V., K. Ravikumar, N. M. Ganesh Babu & D. K. Ved. 2007. Botany of Anapady MPCA, Palghat district, Kerala with special emphasis on species of conservation concern. Bulletin of the Botanical Survey of India 49: 165–172.

[S00] Siddiqi, M. R. 2000. Tylenchida: Parasites of plants and insects 2nd ed. CABI Publishing: Wallingford (UK).

[Z94] Zimmerman, E. C. 1994. Australian Weevils (Coleoptera: Curculionoidea) vol. 2. Brentidae, Eurhynchidae, Apionidae and a chapter on immature stages by Brenda May. CSIRO Australia.

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