Senna Mill.

Senna (en), Séné (fr)

Genus

Angiosperms > Fabales > Fabaceae

Characteristics

Unarmed shrubs or rarely small trees or perennial herbs, sometimes glaucous or viscid, glabrous or pubescent. Leaves alternate, paripinnate, often with glands; stipules often caducous; leaflets in 1-25 pairs. Inflorescences axillary, racemose, bracteate. Flowers slightly zygomorphic. Sepals 5, subequal, obovate, green or yellowish. Petals 5, usually yellow, usually glabrous, sometimes hairy outside. Stamens and staminodes 10 (rarely 7), free; filaments subequal or unequal, the 3 adaxial ones sometimes obsolete, the 4 median ones longer, the 3 abaxial often elongate, arcuately curved; anthers basifixed, sometimes beaked, dehiscent by apical pores (usually 2), the 3 adaxial anthers often staminodal, the 1 abaxial anther and/or 7 adaxial rarely staminodal. Gynoecium curved, shorter than petals; style short; stigma terminal, minute. Pod coriaceous and dehiscent or woody and indehiscent; sometimes septate between the seeds. Seeds areolate or exareolate.
More
Fls perfect, ± irregular; pedicels without bracteoles; hypanthium very short; sep 5; pet 5, yellow, often unequal; stamens mostly 10 but unlike, the lowest (abaxial) ones fully developed, the upper ones progressively reduced, in our spp. the 3 upper ones without normal anthers; anthers basifixed, at least half as long as the filaments, opening by an apical pore or short slit; pods terete or quadrangular to compressed, often transversely septate, indehiscent or inertly dehiscent; lvs evenly once-pinnate, generally with one or more large glands on the petiole or rachis; our spp. all herbs. (Often included in Cassia) 240, widespread.
Herbs, shrubs, or small trees. Leaves abruptly pinnate; leaflets opposite; rachis and petiole with or without glands. Flowers in axillary or terminal racemes; bracteoles absent. Sepals 5. Petals 5, subequal, usually yellow. Stamens 10; filaments of all stamens straight, sometimes 10 fertile, subequal, sometimes 3 adaxial stamens staminodes, (6 or)7 fertile; anther thecae not ciliate along suture. Legume either indehiscent or inertly dehiscent through 1 or both sutures, in last case not coiling, sometimes valves breaking up into 1-seeded joints. Seeds numerous, funicle filiform.
Herbs, shrubs or trees, not armed. Lvs paripinnate or reduced to phyllodes; petiolar glands often present; stipules various. Infl. axillary, racemose or paniculate; bracts and bracteoles various. Calyx with a very short tube and 5, often unequal, segments imbricate in bud. Corolla usually yellow, rarely white; petals subequal. Stamens free, 10 and all fertile, or some reduced to staminodes, or 5 and fertile; anthers uniform or a few larger, basifixed, opening by the apex. Style curved; stigma terminal. Pod various, compressed or terete, 1-2-valved, or indehiscent.
Herbs, shrubs and small trees. Leaves spirally arranged; extrafloral nectaries present or not. Inflorescences racemose, axillary and/or terminal; bracteoles absent. Sepals 5. Petals 5, subequal. Androecium basically 10-merous; filaments of all stamens straight; anther-thecae not ciliate along the sutures. Pods either indehiscent or inertly dehiscent through 1 or both sutures, in the last case not coiling or the valves breaking up in one-seeded joints. Seeds and funicle variable.
Stamens 10, all with almost straight filaments which are not more than twice the length of their anther; anthers basifixed, dehiscing by terminal pores only.
Pods cylindrical, flattened or winged, often transversely septate inside, tardily dehiscent (not elastically) or indehiscent.
Inflorescence racemose or paniculate; bracts often prominent but usually falling at or before anthesis; bracteoles absent.
Leaves paripinnate; leaflets opposite or subopposite; stipules various but often persistent and prominent.
Ovary stipitate, curved; ovules numerous; stigma terminal or subterminal.
Trees, shrubs or woody herbs, unarmed (in the Flora area).
Calyx lobes 5, equal or subequal.
Seeds numerous, areolate.
Petals 5, yellow.
Life form perennial
Growth form
Growth support -
Foliage retention -
Sexuality hermaphrodite
Pollination -
Spread -
Mature width (meter) -
Mature height (meter) -
Root system -
Rooting depth (meter) -
Root diameter (meter) -
Flower color
Blooming months -
Fruit color -
Fruiting months -
Nitrogen fixer -
Photosynthetic pathway -

Environment

Light -
Soil humidity -
Soil texture -
Soil acidity -
Soil nutriment -
Hardiness (USDA) 4-10

Usage

Uses medicinal
Edible -
Therapeutic use -
Human toxicity -
Animal toxicity -

Cultivation

Mode -
Germination duration (days) -
Germination temperacture (C°) -
Germination luminosity -
Germination treatment -
Minimum temperature (C°) -
Optimum temperature (C°) -
Size -
Vigor -
Productivity -

Images

Senna unspecified picture
Senna unspecified picture

Distribution

Senna world distribution map, present in American Samoa, Australia, China, New Zealand, and United States of America

Identifiers

LSID urn:lsid:ipni.org:names:30000132-2
WFO ID wfo-4000035076
COL ID 7FKG
BDTFX ID 100416
INPN ID 445545
Wikipedia (EN) Link
Wikipedia (FR) Link

Synonyms

Octelisia Chamaesenna Senna Adipera Cowellocassia Cathartocarpus Chamaecassia Chamaefistula Diallobus Diplotax Ditremexa Herpetica Isandrina Peiranisia Psilorhegma

Lower taxons

Senna alexandrina Senna sophera Senna acuparata Senna andrieuxii Senna arida Senna armata Senna galeottiana Senna huancabambae Senna lourteigiana Senna macrophylla Senna pilosior Senna pinheiroi Senna pistaciifolia Senna pneumatica Senna polyantha Senna pumilio Senna punoensis Senna purpusii Senna quinquangulata Senna racemosa Senna reniformis Senna rigidicaulis Senna rizzinii Senna robiniifolia Senna roemeriana Senna rugosa Senna scandens Senna spiniflora Senna subulata Senna talpana Senna tenuifolia Senna versicolor Senna viarum Senna viciifolia Senna villosa Senna viminea Senna weddelliana Senna wislizeni Senna wurdackii Senna ripleyana Senna phlebadenia Senna dardanoi Senna latifolia Senna marylandica Senna fruticosa Senna gossweileri Senna singueana Senna mandonii Senna appendiculata Senna barclayana Senna glanduligera Senna gaudichaudii Senna trachypus Senna pendula Senna hirsuta Senna timoriensis Senna kuhlmannii Senna aculeata Senna acuruensis Senna angulata Senna araucarietorum Senna argentea Senna aversiflora Senna aymara Senna birostris Senna brongniartii Senna burkartiana Senna cajamarcae Senna caudata Senna centranthera Senna chloroclada Senna cornigera Senna covesii Senna cuatrecasasii Senna cushina Senna domingensis Senna foetidissima Senna formosa Senna gardneri Senna georgica Senna guatemalensis Senna gundlachii Senna haughtii Senna hebecarpa Senna hilariana Senna holwayana Senna huilana Senna incarnata Senna koelziana Senna lechriosperma Senna leiophylla Senna loretensis Senna malaspinae Senna martiana Senna mensicola Senna mexicana Senna mollissima Senna morongii Senna mucronifera Senna mutisiana Senna nana Senna nicaraguensis Senna nitida Senna obliqua Senna oblongifolia Senna orcuttii Senna organensis Senna oxyphylla Senna paradictyon Senna paraensis Senna peralteana Senna ruiziana Senna rupununiensis Senna saeri Senna sandwithiana Senna scabriuscula Senna silvestris Senna skinneri Senna smithiana Senna sousana Senna spinescens Senna subtrijuga Senna tapajozensis Senna tonduzii Senna trianae Senna trolliiflora Senna uncata Senna undulata Senna uniflora Senna unijuga Senna vargasii Senna velutina Senna reticulata Senna acutisepala Senna affinis Senna cernua Senna harleyi Senna splendida Senna rostrata Senna multijuga Senna aristeguietae Senna barnebyana Senna sulfurea Senna baccarinii Senna holosericea Senna humifusa Senna pallida Senna ellisiae Senna planitiicola Senna itatiaiae Senna tropica Senna spinigera Senna divaricata Senna angustisiliqua Senna ankaranensis Senna bosseri Senna lactea Senna leandrii Senna meridionalis Senna perrieri Senna suarezensis Senna viguierella Senna davidsonii Senna intermedia Senna montana Senna aversifolia Senna longiracemosa Senna ferraria Senna hamersleyensis Senna barronfieldii Senna glaucifolia Senna cuthbertsonii Senna charlesiana Senna manicula Senna bacillaris Senna ligustrina Senna podocarpa Senna cearensis Senna flexuosa Senna paposana Senna sericea Senna sophora Senna symonii Senna stricta Senna stowardii Senna pilocarina Senna polyphylla Senna confinis Senna neglecta Senna garrettiana Senna praeterita Senna monozyx Senna pentagonia Senna stipulacea Senna chacoensis Senna collicola Senna corifolia Senna crotalarioides Senna cruckshanksii Senna dariensis Senna kurtzii Senna lasseigniana Senna lindheimeriana Senna longiglandulosa Senna arnottiana Senna aurantia Senna bauhinioides Senna demissa Senna durangensis Senna hookeriana Senna ruspolii Senna tuhovalyana Senna catingae Senna phyllodinea Senna apiculata Senna benitoensis Senna cana Senna dariensis Senna x floribunda Senna insularis Senna mensicola Senna monozyx Senna multifoliolata Senna orcuttii Senna williamsii Senna gaudichaudii Senna costata Senna glutinosa Senna artemisioides Senna cardiosperma Senna oligoclada Senna rotundifolia Senna stenocarpa Senna pleurocarpa Senna venusta Senna capensis Senna biglandularis Senna acunae Senna chapmanii Senna shaferi Senna aciphylla Senna coronilloides Senna notabilis Senna magnifolia Senna coimbrae Senna bracteosa Senna anthoxantha Senna anthoxantha Senna acatlanensis Senna andhrica Senna juchitanensis Senna tocotana Senna acclinis Senna monilifera Senna chrysocarpa Senna crassiramea Senna stenophylla Senna truncata Senna apsidoneura Senna cobanensis Senna cumingii Senna santanderensis Senna hayesiana Senna huidobriana Senna clavigera Senna candolleana Senna herzogii Senna nudicaulis Senna urmenetae Senna acanthoclada Senna italica Senna septemtrionalis Senna pilifera Senna artemisioides Senna pachyrrhiza Senna didymobotrya Senna macranthera Senna hayesiana Senna spectabilis Senna surattensis Senna tora Senna petersiana Senna bicapsularis Senna papillosa Senna multiglandulosa Senna siamea Senna obtusifolia Senna auriculata Senna corymbosa Senna occidentalis Senna alata Senna atomaria Senna aphylla