Thladiantha dubia

Bunge

Enum. Pl. China Bor., 29. 1833.

Common names: Manchu tuber gourd red hailstone thladianthe douteuse
IllustratedIntroduced
Treatment appears in FNA Volume 6. Treatment on page 10. Mentioned on page 4.

Leaf-blades 5–10 × 4–9 cm, base cordate, apex short-acuminate, surfaces hirsutulous. Inflorescences: peduncle 5–15 mm. Flowers: hypanthium 2–4 mm; sepals recurving, 12–13 mm; petals ca. 25 mm, apex acute. Pepos 4–5 cm, surface with 10 obscure furrows. 2n = 18.


Phenology: Flowering Jun–Sep.
Habitat: Roadsides, thickets, pastures, waste places
Elevation: 10–200 m

Distribution

V6 7-distribution-map.jpg

Introduced; Man., Ont., Que., Ill., Mass., N.H., N.Y., Wis., Asia (China), Asia (Russia), also in South America (Ecuador), Europe, elsewhere in e Asia (China), elsewhere in e Asia (Japan), Pacific Islands (Galapagos Islands)

Discussion

Thladiantha dubia is characterized by its ovate-cordate, unlobed leaves; relatively large, solitary flowers with narrow, recurving sepals, campanulate corollas, yellow petals, usually with recurving apices; and pendulous, hirsute-villous, orange-red fruits. It is grown as an ornamental, especially for its large, bell-shaped flowers and brightly colored fruits. Few populations are apparently outside of cultivation at present, but even staminate plants are potentially invasive because of the spread by tubers.

Selected References

None.

Lower Taxa

None.
... more about "Thladiantha dubia"
distinct +  and connate +
Guy L. Nesom +
cordate +
broadly ovate;suborbiculate not lobed or angulate +
tubular +, saucer--shaped +, campanulate +  and rotate +
Manchu tuber gourd +, red hailstone +  and thladianthe douteuse +
Man. +, Ont. +, Que. +, Ill. +, Mass. +, N.H. +, N.Y. +, Wis. +, Asia (China) +, Asia (Russia) +, also in South America (Ecuador) +, Europe +, elsewhere in e Asia (China) +, elsewhere in e Asia (Japan) +  and Pacific Islands (Galapagos Islands) +
10–200 m +
furrowed +  and echinate +
dehiscent +  and indehiscent +
bristly +, smooth +, hairy +  and glabrous +
tuberculate +  and muricate +
fleshy +  and hard +
pistillate +, staminate +  and umbelliform +
densely hispid-hirsute +  and hirsute or hirsute-villous +
Roadsides, thickets, pastures, waste places +
perennial +
dioecious +  and monoecious +
0.2 cm2 mm <br />0.002 m <br /> (0.4 cm4 mm <br />0.004 m <br />) +
umbellate;subumbellate +
solitary +, corymbose +, fasciculate +, racemose +  and paniculate +
5 cm50 mm <br />0.05 m <br /> (10 cm100 mm <br />0.1 m <br />) +
4 cm40 mm <br />0.04 m <br /> (9 cm90 mm <br />0.09 m <br />) +
petiolate +, estipulate +  and simple +
serrate +  and denticulate +
not differentiated +
0.5 cm5 mm <br />0.005 m <br /> (1.5 cm15 mm <br />0.015 m <br />) +
4 cm40 mm <br />0.04 m <br /> (5 cm50 mm <br />0.05 m <br />) +
induplicate-valvate +  and imbricate +
distinct +
25 cm250 mm <br />0.25 m <br /> (?) +
Flowering Jun–Sep. +
Enum. Pl. China Bor., +
not arillate +
flattened +  and obovoid +
lanceolate +
1.2 cm12 mm <br />0.012 m <br /> (1.3 cm13 mm <br />0.013 m <br />) +
Illustrated +  and Introduced +
climbing +  and procumbent +
sprawling +  and prostrate +
columnar +
Thladiantha dubia +
Thladiantha +
species +
2-branched +  and unbranched +
plant +  and climbing +