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This genus is accepted, and its native range is Mexico, W. & S. South America to SE. & S. Brazil.
A specimen from Kew's Herbarium

[FZ]

Flora Zambesiaca. Vol. 8, Part 4. Solanaceae. Gonçalves AE. 2005

Morphology General
Herbs or sometimes small shrubs, prostrate to erect, occasionally forming mats, ± glabrous to densely clothed with eglandular and also glandular, sometimes viscid hairs; rhizomatous structures sometimes present
Morphology Branches
Branches herbaceous to ± woody
Morphology Reproductive morphology Flowers
Flowers often showy, actinomorphic or slightly zygomorphic Flowers often showy, actinomorphic or slightly zygomorphic.
Morphology Reproductive morphology Flowers Calyx
Calyx tubular to campanulate, ± curved, 10-ribbed, ± deeply 5-lobed; lobes slightly unequal, narrow, ± linear or lanceolate, acuminate, spreading, with valvate aestivation; in fruit somewhat enlarged, enclosing it or not Calyx tubular to campanulate, ± curved, 10-ribbed, ± deeply 5-lobed; lobes slightly unequal, narrow, ± linear or lanceolate, acuminate, spreading, with valvate aestivation; in fruit somewhat enlarged, enclosing it or not.
Morphology Reproductive morphology Flowers Corolla
Corolla white with a yellow or purple centre, or variously coloured from pink to purple or violet, sometimes bluish, infundibuliform or salviform; tube ± long, slender, nearly or quite straight, the mouth narrow; limb abruptly expanded, broadly campanulate, saucer-shaped or funnel-shaped, often plicate, spreading, slightly unequally 5-lobed; lobes short, broad, obtuse or rounded, with cochlear aestivation Corolla white with a yellow or purple centre, or variously coloured from pink to purple or violet, sometimes bluish, infundibuliform or salviform; tube ± long, slender, nearly or quite straight, the mouth narrow; limb abruptly expanded, broadly campanulate, saucer-shaped or funnel-shaped, often plicate, spreading, slightly unequally 5-lobed; lobes short, broad, obtuse or rounded, with cochlear aestivation.
Morphology Reproductive morphology Flowers Androecium Stamens
Stamens 5, ± equal or unequal, often the uppermost shorter than the other 4 or didynamous, sometimes 4 stamens and 1 staminode, inserted in the corolla tube usually in the distal part, sometimes on the throat, exserted; filaments ± connate at the base forming a tube surrounding the style, free upwards, slender but somewhat expanded towards the base, curved at the apex, ± glabrous or puberulous, sometimes glandular; anthers all fertile or elsewhere one of them occasionally sterile, variously sized, almost circular, elliptic or ovate in outline, straight or slightly curved, embraced by the stigma in bud, attached on the lower part of the back, extrorse, the thecae separated from each other one-third or more of their length at the lower end, dehiscing by longitudinal slits
Morphology Reproductive morphology Flowers Disc
Disk usually fleshy, cupular or annular, adnate to and surrounding the basal part of the ovary, entire or crenulate, occasionally lacking Disk usually fleshy, cupular or annular, adnate to and surrounding the basal part of the ovary, entire or crenulate, occasionally lacking.
Morphology Reproductive morphology Flowers Gynoecium Ovary
Ovary stalked to sessile, 2-locular; ovules numerous in each locule on an enlarged placenta adnate to the dorsal line of the dissepiment, anatropous.
Morphology Reproductive morphology Flowers Gynoecium Style
Style slender.
Morphology Reproductive morphology Flowers Gynoecium Stigma
Stigma reniform, usually enlarged into a laminar, 2-lamellate or crescent-shaped process between or surmounting and usually surrounding the anthers, exserted
Distribution
A genus allied to Petunia, with 23 species distributed in warm and temperate regions of both hemispheres, mostly centred in South America from Colombia southwards to Chile and Argentina (reaching northern Patagonia), but mainly in Argentina. One species,
Morphology General Habit
Herbs or sometimes small shrubs, prostrate to erect, occasionally forming mats, ± glabrous to densely clothed with eglandular and also glandular, sometimes viscid hairs; rhizomatous structures sometimes present.
Morphology Stem
Branches herbaceous to ± woody.
Morphology Leaves
Leaves solitary, alternate, occasionally in pairs and appearing opposite, sessile to long-petiolate, entire; minor leaves absent. Leaves solitary, alternate, occasionally in pairs and appearing opposite, sessile to long-petiolate, entire; minor leaves absent
Morphology Reproductive morphology Inflorescences
Inflorescences consisting of one or occasionally several flowers in terminal or lateral, subpaniculiform, racemiform or subspiciform cymes; pedicels slender, articulated at the base; bracts single, foliaceous. Inflorescences consisting of one or occasionally several flowers in terminal or lateral, subpaniculiform, racemiform or subspiciform cymes; pedicels slender, articulated at the base; bracts single, foliaceous
Morphology Reproductive morphology Flowers Androecium
Stamens 5, ± equal or unequal, often the uppermost shorter than the other 4 or didynamous, sometimes 4 stamens and 1 staminode, inserted in the corolla tube usually in the distal part, sometimes on the throat, exserted; filaments ± connate at the base forming a tube surrounding the style, free upwards, slender but somewhat expanded towards the base, curved at the apex, ± glabrous or puberulous, sometimes glandular; anthers all fertile or elsewhere one of them occasionally sterile, variously sized, almost circular, elliptic or ovate in outline, straight or slightly curved, embraced by the stigma in bud, attached on the lower part of the back, extrorse, the thecae separated from each other one-third or more of their length at the lower end, dehiscing by longitudinal slits.
Morphology Reproductive morphology Flowers Gynoecium Pistil
Ovary stalked to sessile, 2-locular; ovules numerous in each locule on an enlarged placenta adnate to the dorsal line of the dissepiment, anatropous; style slender; stigma reniform, usually enlarged into a laminar, 2-lamellate or crescent-shaped process between or surmounting and usually surrounding the anthers, exserted.
Morphology Reproductive morphology Fruits
Fruit capsular, ovoid, membranous, 2-locular, with a central placenta ultimately detaching at the top, apically dehiscing by 2 septicidal slits, the 2 dry valves often 2-fid. Fruit capsular, ovoid, membranous, 2-locular, with a central placenta ultimately detaching at the top, apically dehiscing by 2 septicidal slits, the 2 dry valves often 2-fid
Morphology Reproductive morphology Seeds
Seeds numerous, minute, scarcely compressed, 3-gonous, ovate or ± elliptic in outline; testa somewhat leathery; embryo subterete, straight or slightly curved, in the dorsal part of the fleshy endosperm; cotyledons usually broad, subcompressed. Seeds numerous, minute, scarcely compressed, 3-gonous, ovate or ± elliptic in outline; testa somewhat leathery; embryo subterete, straight or slightly curved, in the dorsal part of the fleshy endosperm; cotyledons usually broad, subcompressed

Native to:

Argentina Northeast, Argentina Northwest, Argentina South, Bolivia, Brazil South, Brazil Southeast, Chile Central, Colombia, Ecuador, Mexico Central, Mexico Northeast, Mexico Southwest, Paraguay, Peru, Uruguay

Introduced into:

Botswana, Cape Provinces, Free State, Mozambique, New South Wales, Northern Provinces, Venezuela, Zimbabwe

Nierembergia Ruiz & Pav. appears in other Kew resources:

Date Reference Identified As Barcode Type Status
Galeotti, H.G. [1478], Mexico K000063610

First published in Fl. Peruv. Prodr.: 23 (1794)

Accepted by

  • Germishuizen, G. & Meyer, N.L. (eds.) (2003). Plants of Southern Africa: an annotated checklist. Strelitzia 14.: i-vi, 1-1231. National Botanical Institute, Pretoria.

Literature

Flora Zambesiaca

  • Darwiniana 5: 487–547 (1941).
  • Fl. Peruv. Prodr.: 23 (1794).
  • Hunziker, Gen. Solanacearum: 60 (2001).
  • Millán in Darwiniana 5: 487–547 (1941).
  • Nierembergia Ruiz & Pav., Fl. Peruv. Prodr.: 23 (1794).

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

Herbarium Catalogue Specimens

Kew Backbone Distributions
The International Plant Names Index and World Checklist of Selected Plant Families 2021. 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 2021. 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