Argyreia wallichii

Nomenclature

Accepted name/Authority/Place of publication: 

Argyreia wallichii Choisy, Mém.Soc. Phys. Genève 6: 421. 1834.

Description

Habit: 
Lianas. Stems terete, ± ashy or whitish tomentose.
Leaves: 
Petiole 5–13 cm, tomentose; leaf blade broadly ovate to almost circular, 10–25 × 6–20 cm, abaxial surface ashy or whitish tomentose, adaxial surface glabrous or sparsely strigose, base cordate, apex acute; lateral veins 10–15 pairs, prominent adaxially.
Inflorescences: 
Inflorescence a nearly capitate cyme, 2.5–7 cm in diam., many flowered; peduncle to 2.5 cm; outer bracts 2.5–4 cm, ovate-elliptic, dull yellowish or grayish pubescent abaxially; inner bracts persistent, smaller.
Flowers: 
Sepals elliptic-oblong, ± equal, 10–12 × 5 mm, villous abaxially; fruiting sepals enlarged, rose-red, shiny. Corolla whitish, pink, or purple, tubular-funnelform, 4–7 cm, midpetaline bands sparsely whitish villous; limb entire or shallowly lobed. Stamens and pistil included; filaments villous basally; anthers oblong, ca. 3.5 mm. Ovary glabrous; style ca. 3 cm.
Fruits: 
Berry enclosed by calyx, red, globose, 8–9 mm in diam.
Author: 
Fang R.C. & G. Staples
References: 

Fang R.C., G. Staples, et al. 1995. Convolvulaceae in P. Raven & C.Y. Wu (eds.) Flora of China 16: 271–325.  

Cytology

Chromosome number: 
30
Author: 
Fang R.C. & G. Staples
References: 

Fang R.C., G. Staples, et al. 1995. Convolvulaceae in P. Raven & C.Y. Wu (eds.) Flora of China 16: 271–325.  

Biogeography, Ecology and Natural History

Distribution Map: 
Distribution: 

China (S Guizhou, SW Sichuan, S Yunnan), Bhutan, NE India, Myanmar, Sikkim, N Thailand.

Ecology: 

China: In
thickets, forests; 800–1500 m. 

Thailand: Sunny places in mixed evergreen forest, grassy fields, bamboo
forest, moist gallery forest along stream through deciduous dipterocarp forest,
often on limestone or calcareous soil; elevation 1200–1450 m. 

Phenology: 

Flw. Aug-Nov, frt. Nov-Mar. 

Author: 
Fang R.C. & G. Staples
References: 

Fang R.C., G. Staples, et al. 1995. Convolvulaceae in P. Raven & C.Y. Wu (eds.) Flora of China 16: 271–325.  

Staples, G. & P. Traiperm. 2010. Argyreia in Convolvulaceae. Fl. Thailand 10(3): 337–371. 

Other information

Common names and uses: 
da ye yin bei teng (Chinese).

Authorship for webpage

Editor: 
George Staples, Esmond Er
Contributors: 
Classification: 
Argyreia wallichii
Thu, 2011-09-22 07:12 -- Esmond
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