Definitions

Solanum tucumanense

Jerusalem cherry

"Solanum karstenii" and "Solanum microcarpum" redirect here. These names have also been applied to other nightshades; see below.

The Jerusalem Cherry or Madeira Winter Cherry (sometimes just, ambiguously, "winter cherry"), Solanum pseudocapsicum, is a nightshade species with poisonous fruit. These perennials can be grown decoratively as a house plant, but in some areas of Australia the plant has become a weed.

The plant is perennial in zones up to USDA 8. Native to Peru, they can survive frosts and cold weather. They generally live up to 10 years, producing fruit usually in their 2nd or 3rd year, and every year after that. They are congeners of tomatoes and the fruit is extremely similar to cherry tomatoes in taste and texture, and are therefore easily confused with them.

The Jerusalem Cherry's poison is primarily solanocapsine, which is similar to other alkaloids found in their genus, such as solanine and atropine. Although the toxin is poisonous, it is generally not life-threatening. It may cause gastric problems, including vomiting and gastroenteritis as referenced in the obsolete scientific name S. ipecacuanha (roughly "ipecac nightshade").

Jersualem cherries are also highly poisonous to dogs, cats, and some birds as well. Though Jerusalem Cherry is distributed by certain birds in the wild – both where native and where introduced, e.g. in Australia by the Pied Currawong (Strepera graculina) –, most popular pet birds, namely parrots and relatives, are not immune to its poison.

Taxonomy

Supposedly, the plant described as Solanum capsicastrum and called False Jerusalem Cherry is closely related but distinct species, and the trade name "Winter Cherry" is also held to apply to this exclusively. It is said to be recognizable by more mediocre size, and/or a greyish hue to the foilage and/or stems, and/or fruit that have a pronounced yellow hue when unripe and whose pulp is not or less poisonous (though the seeds still are, making the whole fruit still inedible), and/or higher frost hardiness. But these supposed differences are inconsistently given in various horticultural sources, and no botanical source has in recent times distinguished between the two. Indeed, these taxa are now generally held to refer to the same species, and the "False Jerusalem Cherry", if it is at all distinguishable, seems to be a chemotype at best, or just a motley collection of cultivars.

The entire list of now-invalid synonyms of S. pseudocapsicum is long, and a lot of homonyms are included within it:

  • Solanum capsicastrum Link ex Schau
  • Solanum capsicastrum var. caaguazuense Chodat
  • Solanum compactum Hort.
  • Solanum diffusum Link ex Roem. & Schult. (non Ruiz & Pav.: preoccupied)

S. diffusum Roxb. ex Wall. is S. virginianum L..S. diffusum ssp. miozygum Bitter and S. diffusum var. miozygum (Bitter) J.F.Macbr. are S. ternatum.

  • Solanum diflorum Vell.
  • Solanum diflorum var. angustifolium Kuntze

Not to be confused with S. angustifolium Mill..

  • Solanum diflorum var. hygrophilum (Schltdl.) Kuntze
  • Solanum diflorum var. pulverulentum Chodat
  • Solanum diphyllum Forssk. (non L.: preoccupied)
  • Solanum diphyllum var. pulverulentum Chodat

S. diphyllum Sessé & Moc. is S. nudum. S. diphyllum Sw. ex Dunal in DC. is an undeterminable Lycianthes species. S. diphyllum Osbeck is a nomen nudum.

  • Solanum dunnianum H.Lév.
  • Solanum eremanthum Dunal
  • Solanum hendersonii Hort. ex W.Wight
  • Solanum hermannioides Schinz
  • Solanum hyemale Salisb.
  • Solanum hygrophilum Schltdl.
  • Solanum ipecacuanha Chodat
  • Solanum ipecacuanha var. calvescens Chodat
  • Solanum ipecacuanha var. obovata Chodat

  • Solanum jaliscanum Greenm.
  • Solanum karstenii Dunal

S. karstenii A.Braun & Bouché is S. felinum.

  • Solanum linkianum Roem. & Schult.
  • Solanum lucidum M.Martens & Galeotti (non Moric.: preoccupied)

S. lucidum Moric. is Aureliana fasciculata (Vell.) Sendtn..

  • Solanum mexiae Standl.
  • Solanum microcarpum Vahl

S. microcarpum Cerv. ex Lag. is S. pubigerum Dunal. S. microcarpum Pav. ex Dunal in DC. is S. corymbosum Jacq..

  • Solanum montevidense Spreng.
  • Solanum plurifurcipilum Bitter
  • Solanum singuliflorum Steud.
  • Solanum tucumanense Griseb.
  • Solanum ulmoides Dunal
  • Solanum uniflorum Vell. (non Dunal in Poir.: preoccupied)

S. uniflorum Meyen ex Nees is S. elaeagnifolium Cav.. S. uniflorum Dunal in Poir. and S. uniflorum Sessé & Moc. are Lycianthes mociniana (Dunal) Bitter. S. uniflorum Lag. is an undeterminable Lycianthes species.

  • Solanum validum Rusby

As can be seen by the "False Jerusalem Cherry" case, several presumed forms, subspecies and varieties have been described of S. pseudocapsicum. But these are generally also not considered to be taxonomically distinct today:

  • Solanum pseudocapsicum var. ambiguum Hassl.
  • Solanum pseudocapsicum f. calvescens (Chodat) Hassl.
  • Solanum pseudocapsicum var. diflorum (Vell.) Bitter
  • Solanum pseudocapsicum ssp. diflorum (Vell.) Hassl.
  • Solanum pseudocapsicum var. hygrophilum (Schltdl.) Hassl.
  • Solanum pseudocapsicum var. lancifolium Moench
  • Solanum pseudocapsicum f. microcarpum (Vahl) Hassl.
  • Solanum pseudocapsicum var. microcarpum Pers.
  • Solanum pseudocapsicum var. normale Kuntze
  • Solanum pseudocapsicum f. pilosulum Hassl.
  • Solanum pseudocapsicum f.? pilosum Kuntze
  • Solanum pseudocapsicum f. pilulosum Hassl.
  • Solanum pseudocapsicum var. parvifolium Kuntze

Not to be confused with S. parvifolium.

  • Solanum pseudocapsicum var. sendtnerianum Hassl.

Not to be confused with S. sendtnerianum.

  • Solanum pseudocapsicum var. typicum Hassl.

Footnotes

References

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