Petunia integrifolia |
Petunia axillaris |
|
---|---|---|
violet-flower petunia |
garden petunia, large white petunia, white-flower petunia |
|
Stems | 1–7 dm. |
1.5–7 dm. |
Leaf | blades: proximalmost oblanceolate, distalmost lanceolate to ovate, 1.4–7.2 (including petiole) × 0.3–3 cm, margins entire. |
blades: proximalmost oblanceolate, distalmost lanceolate to ovate, 2–8.5 (including petiole) × 0.8–3.5 cm, margins entire. |
Pedicels | 1–6 cm. |
1.5–8 cm. |
Flowers | calyx 5–14 mm, lobes 3–11 mm; corolla rose-purple (drying deep violet), veins sometimes darker rose-purple or violet (not distinct from rest of corolla when dried), funnelform with slight abaxial bulge in the tube, tube 1–3 cm, limb 1–4 cm diam.; stamens inserted at base of corolla tube, longest 2 surpassing style; anthers and pollen blue to violet; filaments light purple to green; pistil 1–2.2 cm. |
calyx 8–17 mm, lobes 4–14 mm; corolla ivory to white (lobe apex sometimes drying pale pink), veins often green or dark purple (drying brownish), salverform, tube 2.8–5.2 cm, limb 2.5–5.5 cm diam.; stamens inserted near midpoint of corolla tube, not surpassing style; anthers and pollen yellow; filaments green; pistil 3.2–4.5 cm. |
Capsules | 3–9 mm. |
5–12 mm. |
2n | = 14. |
= 14. |
Petunia integrifolia |
Petunia axillaris |
|
Phenology | Flowering May–Oct. | Flowering May–Oct. |
Habitat | Waste places, along railroads and roadsides, poor soil or sand. | Waste places, along railroads and roadsides, poor soil. |
Elevation | 0–400 m. (0–1300 ft.) | 0–400 m. (0–1300 ft.) |
Distribution |
AL; CA; CT; DC; FL; IL; MA; MD; ME; NC; NH; NJ; NY; OH; PA; RI; TX; WI; WV; South America (Argentina, Brazil, Paraguay) [Introduced in North America] |
AL; CT; DC; DE; FL; GA; IA; IL; IN; MA; MI; MN; MO; NC; NJ; NY; OH; PA; SC; TN; TX; WV; South America (Argentina, Bolivia, Brazil, Paraguay) [Introduced in North America; introduced also in Australia]
|
Discussion | Naturalized populations of Petunia integrifolia appear to have been more common prior to the 1960s, based on herbarium specimens. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Specimens of Petunia axillaris are often misidentified as P. × atkinsiana, especially if there is some slight color in the corolla. Petunia × atkinsiana with white corollas sometimes has the blue pollen and anther color of P. integrifolia. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Source | FNA vol. 14. | FNA vol. 14. |
Parent taxa | Solanaceae > Petunia | Solanaceae > Petunia |
Sibling taxa | ||
Synonyms | Salpiglossis integrifolia, P. violacea | Nicotiana axillaris |
Name authority | (Hooker) Schinz & Thellung: Vierteljahrsschr. Naturf. Ges. Zürich 60: 361. (1915) | (Lamarck) Britton: Sterns & Poggenburg, Prelim. Cat., 38. (1888) |
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