Torenia fournieri

Linden ex E. Fournier

Ill. Hort. 23: 129, plate 249. 1876.

IntroducedIllustrated
Treatment appears in FNA Volume 17. Treatment on page 357. Mentioned on page 356.

Stems 2–38 cm. Leaves: petiole 3–21 mm; blade lanceolate to ovate or distal sometimes linear, 3–46 × 2–24 mm; distal well developed or greatly reduced. Pedicels 5–24 mm, 0.7–1.5 times subtending leaves. Flowers: sepals 11–18 mm; corolla adaxial lip equal to abaxial. Capsules narrowly ellipsoid, 8–12 × 1.5–3 mm. Seeds 0.5–0.6 × 0.3–0.4 mm. 2n = 18 (India).


Phenology: Flowering May–Oct.
Habitat: Lawns, compost piles, roadsides, disturbed places, persisting after cultivation.
Elevation: 20–1200 m.

Distribution

Introduced; Ala., Fla., Iowa, La., N.C., Asia, also in Mexico, Central America, South America, Europe, Australia

Discussion

Torenia fournieri and its hybrid with T. concolor, often called “Torenia hybrida” in the horticultural trade, are popular bedding plants throughout much of North America. The hybrid is sterile, reportedly producing neither seeds nor viable pollen (http://www.health.gov.au/internet/ogtr/publishing.nsf/Content/torenia-3/$FILE/biologytorenia08.pdf). J. D. Pittillo and A. E. Brown (1988) published the first report of T. fournieri as a waif in the flora area, from Jackson County, North Carolina.

Selected References

None.

Lower Taxa

None.

... more about "Torenia fournieri"
erect +  and spreading +
Deborah Q. Lewis +
Linden ex E. Fournier +
lanceolate +  and ovate or distal +
not leathery +
ellipsoid +
septicidal +, loculicidal +  and poricidal +
0.8 cm8 mm <br />0.008 m <br /> (1.2 cm12 mm <br />0.012 m <br />) +
ellipsoid +
0.15 cm1.5 mm <br />0.0015 m <br /> (0.3 cm3 mm <br />0.003 m <br />) +
blue +, purple +, violet +  and white +
Ala. +, Fla. +, Iowa +, La. +, N.C. +, Asia +, also in Mexico +, Central America +, South America +, Europe +  and Australia +
20–1200 m. +
poricidal +  and septicidal +
Lawns, compost piles, roadsides, disturbed places, persisting after cultivation. +
3mm;46mm +
0.2 cm2 mm <br />0.002 m <br /> (?) +  and 2.4 cm24 mm <br />0.024 m <br /> (?) +
triangular-ovate +
toothed +, undulate +  and entire +
tenuinucellate +  and unitegmic +
orthotropous +
0.7-1.5 times subtending leaves +
0.5 cm5 mm <br />0.005 m <br /> (2.4 cm24 mm <br />0.024 m <br />) +
0.3 cm3 mm <br />0.003 m <br /> (2.1 cm21 mm <br />0.021 m <br />) +
Flowering May–Oct. +
White (?) +  and Gold (?) +
0.05 cm0.5 mm <br />5.0e-4 m <br /> (0.06 cm0.6 mm <br />6.0e-4 m <br />) +
cylindric +
0.03 cm0.3 mm <br />3.0e-4 m <br /> (0.04 cm0.4 mm <br />4.0e-4 m <br />) +
1.1 cm11 mm <br />0.011 m <br /> (1.8 cm18 mm <br />0.018 m <br />) +
Introduced +  and Illustrated +
repent +  and prostrate +
weakly +  and 4-angled +
2 cm20 mm <br />0.02 m <br /> (38 cm380 mm <br />0.38 m <br />) +
neither +, clavate +, capitate +  and 2-lobed +
Torenia fournieri +
species +
3.6 cm36 mm <br />0.036 m <br /> (4 cm40 mm <br />0.04 m <br />) +
2.1 cm21 mm <br />0.021 m <br /> (3.6 cm36 mm <br />0.036 m <br />) +
perennial +  and annual +