Genus:
Petunia Juss.

Petunia integrifolia (Hook.) Schinz & Thell.

This species is accepted, and its native range is S. Brazil to NE. Argentina.

[FZ]

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

Morphology General Habit
Sprawling to erect herb (low shrub), up to c.  60 cm high, sparingly to densely branched often from near the base, aromatic, densely covered with viscid-glandular hairs Sprawling to erect herb (low shrub), up to c. 60 cm high, sparingly to densely branched often from near the base, aromatic, densely covered with viscid-glandular hairs.
Morphology Branches
Branches angular or somewhat winged Branches angular or somewhat winged.
Morphology Leaves
Leaves shortly petiolate; lamina membranous, 2–5 × 0.6–3.5 cm, elliptic or ovate to lanceolate, spathulate or obovate, base cuneate, apex acute to obtuse, sometimes sub-acuminate, entire or somewhat repand, glandular hairy at least along the margins and to a varying extent on the surfaces Leaves shortly petiolate; lamina membranous, 2–5 × 0.6–3.5 cm, elliptic or ovate to lanceolate, spathulate or obovate, base cuneate, apex acute to obtuse, sometimes sub-acuminate, entire or somewhat repand, glandular hairy at least along the margins and to a varying extent on the surfaces.
Morphology Reproductive morphology Flowers
Flowers ± erect. Flowers ± erect; pedicels 1–6 cm long, slender, elongating in fruit, hairy.
Morphology Reproductive morphology Flowers Pedicel
Pedicels 1–6 cm long, slender, elongating in fruit, hairy
Morphology Reproductive morphology Flowers Calyx
Calyx 10–18 mm long, hairy all over; laciniae unequal, 8–15 × 1. 5–3 mm, linear to spathulate, acute to obtuse, more densely hairy at the margins, erect or ± spreading; in fruit somewhat enlarged Calyx 10–18 mm long, hairy all over; laciniae unequal, 8–15 × 1.5–3 mm, linear to spathulate, acute to obtuse, more densely hairy at the margins, erect or ± spreading; in fruit somewhat enlarged.
Morphology Reproductive morphology Flowers Corolla
Corolla deep purple (or pink to violet coloured), veined, 3.5–5 cm long, infundibuliform, single or elsewhere sometimes double; tube up to twice as long as the calyx, rather narrow, villous or hirsute outside, glabrous inside; limb 1. 5–2 cm long, 3–4.5 cm across, hairy on the nerves outside; lobes ovate or rotund, rounded to sub-acute Corolla deep purple (or pink to violet coloured), veined, 3.5–5 cm long, infundibuliform, single or elsewhere sometimes double; tube up to twice as long as the calyx, rather narrow, villous or hirsute outside, glabrous inside; limb 1.5–2 cm long, 3–4.5 cm across, hairy on the nerves outside; lobes ovate or rotund, rounded to sub-acute.
Morphology Reproductive morphology Flowers Androecium Stamens
Stamens subequal, one shorter and 2 slightly longer; filaments 1. 3–1. 6 cm long, attached about one-third down the corolla tube, geniculate just above the insertion; anthers bluish, c.  1. 5 mm long, deeply cordate Stamens subequal, one shorter and 2 slightly longer; filaments 1.3–1.6 cm long, attached about one-third down the corolla tube, geniculate just above the insertion; anthers bluish, c. 1.5 mm long, deeply cordate.
Morphology Reproductive morphology Flowers Disc
Disk yellowish, 0.8 mm high, laterally sulcate, crenate-repand Disk yellowish, 0.8 mm high, laterally sulcate, crenate-repand.
Morphology Reproductive morphology Flowers Gynoecium Ovary
Ovary 3 × 1. 5 mm, elongate-conic or subpyramidal, glabrous.
Morphology Reproductive morphology Flowers Gynoecium Style
Style 2–2.3 cm long, somewhat geniculate at the top
Ecology
Waste places and riverbanks; 1340 m.
Note
Common name: “Violet-flowered Petunia”.
Distribution
ZIM W Zimbabwe Native to South America; widely cultivated in both hemispheres as a garden ornamental, sometimes growing as garden escape.
Morphology Reproductive morphology Flowers Gynoecium Pistil
Ovary 3 × 1.5 mm, elongate-conic or subpyramidal, glabrous; style 2–2.3 cm long, somewhat geniculate at the top.
Morphology Reproductive morphology Fruits
Fruit stramineous, c. 10 mm long, with the foveolate placenta persistent after seeds have fallen. Fruit stramineous, c.  10 mm long, with the foveolate placenta persistent after seeds have fallen
Morphology Reproductive morphology Seeds
Seeds pale to dark brown, ± globose or globose-prismatic. Seeds pale to dark brown, ± globose or globose-prismatic

Native to:

Argentina Northeast, Brazil South, Paraguay, Uruguay

Introduced into:

Alabama, Assam, Bulgaria, Illinois, Mexico Central, Mexico Gulf, Mexico Northeast, Mexico Northwest, New York, Romania, Zimbabwe

Petunia integrifolia (Hook.) Schinz & Thell. appears in other Kew resources:

Date Reference Identified As Barcode Type Status Has image?
Aug 21, 2012 Hashimoto, G. [s.n.], Brazil K001073385 Yes
Aug 21, 2012 Hashimoto, G. [s.n.], Brazil K001073383 Yes
Aug 21, 2012 Hashimoto, G. [s.n.], Brazil K001073384 Yes
Aug 21, 2012 Hashimoto, G. [s.n.], Brazil K001073382 Yes
Aug 21, 2012 Hashimoto, G. [s.n.], Brazil K001073387 Yes
Aug 21, 2012 Hashimoto, G. [s.n.], Brazil K001073386 Yes
Jul 13, 1992 Rambo, B. [43508], Brazil K001073378 Yes
Sep 11, 1986 Reineck, E.M. [88], Brazil K001073379 Yes
Sep 11, 1986 Archer, W.A. [4302], Brazil K001073381 Yes
Pedersen, T.M. [11434], Brazil K001073380 Yes

First published in Vierteljahrsschr. Naturf. Ges. Zürich 60: 361 (1915)

Accepted by

  • Barooah, C. & Ahmed, I. (2014). Plant diversity of Assam. A checklist of Angiosperms and Gymnosperms: 1-599. Assam science technology and environment council, India.
  • Delipavlov, D. & Cheshmedzhiev, I. (eds.) (2011). Opredelitel na rasteniiata v Bulgariia: 1-590. Akad. Isd. Agrar. Univers. Plovdiv.
  • Gonçalves, A.E. (2005). Flora Zambesiaca 8(4): 1-124. Royal Botanic Gardens, Kew.
  • Kral, R., Diamond, A.R., Ginzbarg, S.L., Hansen, C.J., Haynes, R.R., Keener, B.R., Lelong, M.G., Spaulding, D.D. & Woods, M. (2011). Annotated checklist of the vascular plants of Alabama: 1-112. Botanical reseach institute of Texas.
  • Mohlenbrock, R.H. (2014). Vascular Flora of Illinois. A Field Guide, ed. 4: 1-536. Southern Illinois University Press, Carbondale.
  • Urziceanu, M. & al. (2020). Updated list of non-native ornamental plants in Romania Contributii Botanice Universitatea "Babes-Bolyai" din Cluj-Napoca 55: 59-82.
  • Werier, D. (2017). Catalogue of the Vascular plants of New York state Memoirs of the Torrey Botanical Club 27: 1-542.
  • Zuloaga, F.O., Morrone, O. , Belgrano, M.J., Marticorena, C. & Marchesi, E. (eds.) (2008). Catálogo de las Plantas Vasculares del Cono Sur Monographs in Systematic Botany from the Missouri Botanical Garden 107: 1-3348. Missouri Botanical Garden.

Literature

Flora Zambesiaca

  • Fl. Europaea 3: 193 (1972).
  • Hawkes et al., Biol. & Taxon. Solanac.: 72 (1979). TAB. 3.
  • Vierteljahrsschr. Naturf. Ges. Zürich 60: 361 (1915).

Kew Backbone Distributions

  • Barooah, C. & Ahmed, I. (2014). Plant diversity of Assam. A checklist of Angiosperms and Gymnosperms: 1-599. Assam science technology and environment council, India.
  • Delipavlov, D. & Cheshmedzhiev, I. (eds.) (2011). Opredelitel na rasteniiata v Bulgariia: 1-590. Akad. Isd. Agrar. Univers. Plovdiv.
  • Gonçalves, A.E. (2005). Flora Zambesiaca 8(4): 1-124. Royal Botanic Gardens, Kew.
  • Kral, R., Diamond, A.R., Ginzbarg, S.L., Hansen, C.J., Haynes, R.R., Keener, B.R., Lelong, M.G., Spaulding, D.D. & Woods, M. (2011). Annotated checklist of the vascular plants of Alabama: 1-112. Botanical reseach institute of Texas.
  • Mohlenbrock, R.H. (2014). Vascular Flora of Illinois. A Field Guide, ed. 4: 1-536. Southern Illinois University Press, Carbondale.
  • Urziceanu, M. & al. (2020). Updated list of non-native ornamental plants in Romania Contributii Botanice Universitatea "Babes-Bolyai" din Cluj-Napoca 55: 59-82.
  • Villaseñor, J.L. (2016). Checklist of the native vascular plants of Mexico Revista Mexicana de Biodiversidad 87: 559-902.
  • Werier, D. (2017). Catalogue of the Vascular plants of New York state Memoirs of the Torrey Botanical Club 27: 1-542.
  • Zuloaga, F.O., Morrone, O. , Belgrano, M.J., Marticorena, C. & Marchesi, E. (eds.) (2008). Catálogo de las Plantas Vasculares del Cono Sur Monographs in Systematic Botany from the Missouri Botanical Garden 107: 1-3348. Missouri Botanical Garden.

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