Solanum

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Solanum
Starr 020323-0062 Solanum seaforthianum.jpg
Brazilian nightshade ( Solanum seaforthianum )
Scientific classification OOjs UI icon edit-ltr.svg
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Clade: Asterids
Order: Solanales
Family: Solanaceae
Subfamily: Solanoideae
Tribe: Solaneae
Genus: Solanum
L. [1]
Type species
Solanum nigrum L. [2]
Subgenera

Bassovia
Leptostemonum
Lyciosolanum
Solanum
(but see text)

Contents

Synonyms
List
  • AmatulaMedik.
  • AndroceraNutt.
  • AntimionRaf.
  • AquartiaJacq.
  • ArtorhizaRaf.
  • BassoviaAubl.
  • BattataHill
  • BosleriaA.Nelson
  • CerantheraRaf.
  • CliocarpusMiers
  • CodylisRaf.
  • CyathostylesSchott ex Meisn.
  • CyphomandraMart. ex Sendtn.
  • DiamononRaf.
  • DimorphyliaCortés
  • DulcamaraMoench
  • FontqueriellaRothm.
  • LycomelaHeist. ex Fabr.
  • LycopersiconMill.
  • MelongenaMill.
  • NormaniaLowe
  • NycteriumVent.
  • PallaviciniaDe Not.
  • ParmentieraRaf.
  • PetagniaRaf.
  • PheliandraWerderm.
  • PionandraMiers
  • PseudocapsicumMedik.
  • PsolanumNeck.
  • ScubulonRaf.
  • SolanastrumHeist. ex Fabr.
  • SolanocharisBitter
  • SolanopsisBörner
  • TrigueraCav.
Unripe fruit of Solanum lycopersicum (tomato) Solanum Lycopersicum tomkin 1.jpg
Unripe fruit of Solanum lycopersicum (tomato)

Solanum is a large and diverse genus of flowering plants, which include three food crops of high economic importance: the potato, the tomato and the eggplant (aubergine, brinjal). It is the largest genus in the nightshade family Solanaceae, comprising around 1,500 species. It also contains the so-called horse nettles (unrelated to the genus of true nettles, Urtica ), as well as numerous plants cultivated for their ornamental flowers and fruit.

Solanum species show a wide range of growth habits, such as annuals and perennials, vines, subshrubs, shrubs, and small trees. Many formerly independent genera like Lycopersicon (the tomatoes) and Cyphomandra are now included in Solanum as subgenera or sections. Thus, the genus today contains roughly 1,500–2,000 species.

Name

The generic name was first used by Pliny the Elder (AD 23–79) for a plant also known as strychnos , most likely S. nigrum. Its derivation is uncertain, possibly stemming from the Latin word sol , meaning "sun", referring to its status as a plant of the sun. [3]

Species having the common name "nightshade"

The species most commonly called nightshade in North America and Britain is Solanum dulcamara , also called bittersweet or woody nightshade (so-called because it is a scandent shrub). Its foliage and egg-shaped red berries are poisonous, the active principle being solanine, which can cause convulsions and death if taken in large doses. Black nightshades (many species in the Solanum nigrum complex, Solanum sect. Solanum) have varying levels of toxins and are considered too toxic to eat by many people in North America and Europe, but young stems and leaves or fully ripened fruit of various species are cooked and eaten by native people in North America, Africa, and Asia. Deadly nightshade ( Atropa belladonna ) belongs, like Solanum, to subfamily Solanoideae of the nightshade family, but, unlike that genus, is a member of tribe Hyoscyameae (Solanum belongs to tribe Solaneae). [4] The chemistry of Atropa species is very different from that of Solanum species and features the very toxic tropane alkaloids, the best-known of which is atropine. [5]

Taxonomy

The genus was established by Carl Linnaeus in 1753. [6] Its subdivision has always been problematic, but slowly some sort of consensus is being achieved.[ citation needed ]

The following list is a provisional lineup of the genus' traditional subdivisions, together with some notable species. [6] Many of the subgenera and sections might not be valid; they are used here provisionally as the phylogeny of this genus is not fully resolved yet and many species have not been reevaluated.[ citation needed ]

Cladistic analyses of DNA sequence data suggest that the present subdivisions and rankings are largely invalid. Far more subgenera would seem to warrant recognition, with Leptostemonum being the only one that can at present be clearly subdivided into sections. Notably, it includes as a major lineage several members of the traditional sections Cyphomandropsis and the old genus Cyphomandra . [1]

Subgenus Bassovia

Section Allophylla

Section Cyphomandropsis

Section Pachyphylla

Subgenus Leptostemonum

Five-minute plant (S. atropurpureum) fruit Solanum atropurpureum fruits.jpg
Five-minute plant ( S. atropurpureum ) fruit
Solanum palinacanthum Solanum palinacanthum (cropped).jpg
Solanum palinacanthum
Shrubby nightshade (S. robustum) flowers Starr 020913-0042 Solanum robustum.jpg
Shrubby nightshade ( S. robustum ) flowers
Giant potatocreeper (S. wendlandii) flowers Starr 980529-4264 Solanum wendlandii.jpg
Giant potatocreeper ( S. wendlandii ) flowers
Porcupine tomato (S. pyracanthos) fruit Solanum pyracanthum 05 ies.jpg
Porcupine tomato ( S. pyracanthos ) fruit

Section Acanthophora

Section Androceras

12 spp. [7]

  • Series Androceras
  • Series Violaceiflorum
  • Series Pacificum

Section Anisantherum

Section Campanulata

Section Crinitum

Section Croatianum

Section Erythrotrichum

Section Graciliflorum

[ verification needed ]

Section Herposolanum

Section Irenosolanum

Section Ischyracanthum

Section Lasiocarpa

Section Melongena

Section Micracantha

Section Monodolichopus

Section Nycterium

Section Oliganthes

Section Persicariae

Section Polytrichum

Section Pugiunculifera

Section Somalanum

Section Torva

Subgenus Lyciosolanum

Subgenus Solanum

Solanum erianthum Solanum erianthum Don W IMG 1621.jpg
Solanum erianthum
Jasmine nightshade (S. laxum) flowers Solanum jasminoides1.jpg
Jasmine nightshade ( S. laxum ) flowers
Currant tomato (S. pimpinellifolium) fruit Lycopersicon pimpinellifolium1.jpg
Currant tomato (S. pimpinellifolium) fruit
Andean black potatoes (S. tuberosum) Andean black potato 2.JPG
Andean black potatoes (S. tuberosum)
Turkey berry (S. torvum) flowers Solanum torvum 3.jpg
Turkey berry (S. torvum) flowers
Yellow nightshade (S. villosum) fruit Solanum villosum 01-10-2005 11.10.56.JPG
Yellow nightshade ( S. villosum ) fruit

Also known as: Solanum sensu stricto.

Section Afrosolanum

Section Anarrhichomenum

Section Archaesolanum

Section Basarthrum

Section Benderianum

Section Brevantherum

Section Dulcamara

Section Herpystichum

Section Holophylla

Section Juglandifolia

Section Lemurisolanum

Section Lycopersicoides

Section Lycopersicon

Also known as: tomato lineage.

Section Macronesiotes

Section Normania

Section Petota

Also known as the "potato lineage". Including: subsections Estolonifera and Potatoe.

Section Pteroidea

Section Quadrangulare

Section Regmandra

Section Solanum

Notable species not otherwise placed

Forked nightshade (S. furcatum) Solanum furcatum I.JPG
Forked nightshade (S. furcatum)
Bluewitch nightshade (S. umbelliferum) flowers Solanum umbelliferum Bluewitch.jpg
Bluewitch nightshade (S. umbelliferum) flowers

Formerly placed here

Lycianthes rantonnetii and its congeners were often placed in Solanum. Lycianthes rantonnei.jpg
Lycianthes rantonnetii and its congeners were often placed in Solanum.

Some plants of other genera were formerly placed in Solanum:

Phylogeny

The following phylogeny of Solanaceae is from Zhang et al. (2025) figure 1B. It is based on a consensus of 500 trees randomly sampled from 1-Mb genomic windows with 200-kb step size. [13]

Solanum

Tomato (= sect. Lycopersicon)

Petota (Tomato × Etuberosum)

Etuberosum

Anarrhicomenum

Basarthrum

Moreilloid ("Maurella", "Morella")

Dulcamaroid

Grade I

Brevantherum

Geminata

Crinitum

Sisymbriifolium

Acanthophora

Lasiocarpa

Androceras

Eastern Hemisphere Spiny

"Spiny" ( subgen. Leptostemonum)
Clade II

The non-italicized names inside of Solanum refer to the major clade names within Solanum. These names usually include the similarly-named section but do not have taxonomic standing. [13]

Ecology

Solanum species are used as food plants by the larvae of some Lepidoptera species (butterflies and moths).

Toxicity

Most parts of the plants, [14] especially the green parts and unripe fruit, are poisonous to humans (although not necessarily to other animals), with some species even being deadly.

Uses

Many species in the genus bear some edible parts, such as fruits, leaves, or tubers. Three crops in particular have been bred and harvested for consumption by humans for centuries, and are now cultivated on a global scale:

Other species are significant food crops regionally, such as Ethiopian eggplant or scarlet eggplant ( S. aethiopicum ), naranjilla or lulo ( S. quitoense ), cocona ( S. sessiliflorum ), turkey berry ( S. torvum ), pepino or pepino melon ( S. muricatum ), tamarillo ( S. betaceum ), wolf apple ( S. lycocarpum ), garden huckleberry ( S. scabrum ) and "bush tomatoes" (several Australian species).

Ornamentals

The species most widely seen in cultivation as ornamental plants are:

Medicine

Several species are locally used in folk medicine, particularly by native people who have long employed them.

References

  1. 1 2 "Solanum L." Germplasm Resources Information Network. United States Department of Agriculture. 2009-09-01. Retrieved 2013-07-15.
  2. Solanum | International Plant Names Index. (n.d.). Retrieved August 11, 2023, from https://www.ipni.org/n/30000630-2
  3. Quattrocchi, U. (2000). CRC World Dictionary of Plant Names: Vol. 4, R-Z. Taylor and Francis. p. 2058. ISBN   978-0-8493-2678-3.
  4. Armando T. Hunziker 2001: The Genera of Solanaceae. A.R.G. Gantner Verlag, Ruggell, Liechtenstein. ISBN   3-904144-77-4.
  5. Frohne, Dietrich and Pfänder, Hans Jürgen. 1984 A Colour Atlas of Poisonous Plants : A Handbook for Pharmacists, Doctors, Toxicologists, and Biologists transl. from 2nd German ed. by Norman Grainger Bisset, London : Wolfe Atlases. Wolfe Publishing.
  6. 1 2 "Solanum Phylogeny". Solanaceae Source. Natural History Museum. Retrieved 2009-11-01.
  7. Whalen, Michael D (1979). "Allozyme Variation and Evolution in Solanum Section Androceras". Systematic Botany. 4 (3): 203–222. Bibcode:1979SysBo...4..203W. doi:10.2307/2418419. JSTOR   2418419.
  8. "Factsheet – Solanum cataphractum". Electronic Flora of South Australia. Retrieved 8 November 2020.
  9. Tepe, E. J.; Ridley, G.; Bohs, L. (2012). "A new species of Solanum named for Jeanne Baret, an overlooked contributor to the history of botany". PhytoKeys (8): 37–47. Bibcode:2012PhytK...8...37T. doi: 10.3897/phytokeys.8.2101 . PMC   3254248 . PMID   22287929.
  10. 1 2 Anderson, G. J.; Martine, C. T.; Prohens, J.; Nuez, F. (2006). "Solanum perlongistylum and S. catilliflorum, New Endemic Peruvian Species of Solanum, Section Basarthrum, Are Close Relatives of the Domesticated Pepino, S. muricatum". Novon. 16 (2): 161–67. doi:10.3417/1055-3177(2006)16[161:SPASCN]2.0.CO;2. ISSN   1055-3177. S2CID   85629504.
  11. Ochoa, C. M. (2006). "Solanum tergosericeum (Solanaceae sect. Basarthrum): A new species from Peru". Phytologia. 88 (2): 212–15. doi: 10.5962/bhl.part.27433 .
  12. Reina, Antonio Maria Martinez; Zumaqué, Lilibeth Tordecilla; Martínez, Liliana María Grandett; Pinto, María del Valle Rodríguez (2020-08-25). "Adopcion Adopción de la variedad de berenjena C015 (Solanum melongena L.) en la región Caribe colombiana: measuring adoption". Ciencia y Agricultura (in Spanish). 17 (3): 1–10. doi: 10.19053/01228420.v17.n3.2020.11062 . ISSN   2539-0899. S2CID   225303476.
  13. 1 2 3 Zhang, Zhiyang; Zhang, Pingxian; Ding, Yiyuan; Wang, Zefu; Ma, Zhaoxu; Gagnon, Edeline; Jia, Yuxin; Cheng, Lin; Bao, Zhigui; Liu, Zinan; Wu, Yaoyao; Hu, Yong; Lian, Qun; Lin, Weichao; Wang, Nan; Ye, Keyi; Wang, Hongru; Zhang, Jinzhe; Zhou, Yongfeng; Liu, Liang; Li, Suhua; Lucas, William J.; Särkinen, Tiina; Knapp, Sandra; Rieseberg, Loren H.; Liu, Jianquan; Huang, Sanwen (July 2025). "Ancient hybridization underlies tuberization and radiation of the potato lineage". Cell. doi: 10.1016/j.cell.2025.06.034 .
  14. "Archived TJM 1993 treatment for Solanum douglasii". ucjeps.berkeley.edu. Retrieved 2025-01-27.
  15. "Purple tomato debuts as 'Indigo Rose'". Extension Service. Oregon state university. 2012-01-27. Retrieved 2018-06-25.
  16. "Vegetable Cultivar Descriptions for North America | Cucurbit Breeding". NCSU. Retrieved 2018-06-25.
  17. RHS A-Z encyclopedia of garden plants. United Kingdom: Dorling Kindersley. 2008. p. 1136. ISBN   978-1405332965.

Further reading

Updated taxonomic treatments not yet integrated:

General references: