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Overview

Comprehensive Description

Description

Annual, trailing or twining herb.
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© Mark Hyde, Bart Wursten and Petra Ballings

Source: Flora of Zimbabwe

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Derivation of specific name

sinensis: Chinese; of China
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© Mark Hyde, Bart Wursten and Petra Ballings

Source: Flora of Zimbabwe

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Derivation of specific name

sinensis: Chinese; of China
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© Mark Hyde, Bart Wursten and Petra Ballings

Source: Flora of Zimbabwe

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Miscellaneous Details

"Notes: Western Ghats, Moist Deciduous Forests"
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© India Biodiversity Portal

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Brief

Flowering class: Dicot Habit: Herb Distribution notes: Exotic
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Distribution

National Distribution

United States

Origin: Exotic

Regularity: Regularly occurring

Currently: Unknown/Undetermined

Confidence: Confident

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Distribution: Occasional in disturbed areas at lower elevations in eastern Puerto Rico. Also in Cuba, continental tropical America, and tropical Asia.

Public forest: Guánica (according to Quevedo et al., 1990).

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"
Global Distribution

Native of Tropical America, later recorded from Africa and Sri Lanka

Indian distribution

State - Kerala, District/s: Thiruvananthapuram, Thrissur, Kannur

"
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Maharashtra: Konkan Tamil Nadu: Coimbatore
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Distribution in Egypt

Arabian Desert, Gebel Elba.

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© Bibliotheca Alexandrina

Source: Bibliotheca Alexandrina - EOL Ar

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Fujian, Guangdong, Guangxi, Guizhou, Hunan, Jiangxi, Taiwan, Yunnan [India, Indonesia, Japan (Ryukyu Islands), ?Myanmar, Vietnam; E Africa, N Australia]
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© Missouri Botanical Garden, 4344 Shaw Boulevard, St. Louis, MO, 63110 USA

Source: Missouri Botanical Garden

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Physical Description

Morphology

Description

Herbs annual, scandent or twining, with ± grayish hirsute axial parts. Stems 1-2 m. Petiole 1.5-8 cm; leaf blade cordate or deltate-cordate, 4-9.5 3-7 cm, hirsute-villous, base cordate, margin entire, rarely slightly 3-lobed, apex acuminate; lateral veins 6 or 7 pairs. Inflorescences 1-3-flowered; peduncle (0-)3-15 mm; outer 3 bracts linear-lanceolate, small. Pedicel 0.8-1.5 cm. Sepals slightly enlarged in fruit; outer 3 deltate-lanceolate, 8-10 4-5 mm, abaxially grayish hirsute-villous, ciliate, adaxially subglabrous, base auriculate; inner 2 linear-lanceolate, ca. as long as or longer than outer 3. Corolla white, narrowly campanulate, 1.2-1.9 cm; limb shallowly lobed, midpetaline bands pubescent. Stamens ca. 3 mm; anthers ovoid-deltoid, base sagittate. Ovary conical, glabrous. Capsule ± globose, ca. 9 mm in diam., glabrous. Seeds ovoid-trigonous, ca. 4 mm, puberulent to tomentellous, margin sometimes white woolly.
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Size

Height: 0.5-2 m.

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Source: Bibliotheca Alexandrina - EOL Ar

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Diagnostic Description

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Diagnostic

"Slender, herbaceous, twiners; perennates from a woody rootstock, glandular pubescent. Leaves alternate, broadly ovate to suborbicular in outline, compound, usually with 5 leaflets, the leaflets ovate to ovate-lanceolate, basally acute to obtuse, apically long-acuminate, the middle leaflet largest, (2-)3-5 cm long, the other leaflets shorter, the margins dentate, covered with scattered glandular trichomes. Inflorescences axillary, flowers solitary or in 2-3 flowered cymes, the peduncles 2-4 cm long, glandular. Flowers on glandular pubescent pedicels 2-3 cm long. Sepals broadly rhomboid-ovate to ovate, the body 5-7 mm long, with a 7-10 mm long acuminate apex, with spreading whitish-yellow trichomes and glandular indument. Corolla white, campanulate, 1.5-2 cm long. Fruits capsular, globose, 6-7 mm long, light brown, glabrous; seeds subrotund, dark brown to black, glabrous, 2-3 mm long."
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Diagnostic

Habit: Twining Herb
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Synonym

Convolvulus biflorus Linnaeus, Sp. Pl. ed. 2., App. 1668. 1763; Aniseia biflora (Linnaeus) Choisy; A. calycina (Roxburgh) Choisy; C. calycinus Roxburgh; C. hardwickii Sprengel; C. plebeius (R. Brown) Sprengel; C. ser Sprengel; C. sinensis Desrousseaux; Ipomoea calycina (Roxburgh) Bentham ex C. B. Clarke; I. cynanchifolia C. B. Clarke, p.p.; I. hardwickii (Sprengel) Hemsley; I. plebeia R. Brown; I. sinensis (Desrousseaux) Choisy; I. timorensis Blume.
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Ecology

Habitat

General Habitat

Road sides
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Valleys, mountain slopes, roadsides, forests, usually in dry places; 200-1800 m.
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Life History and Behavior

Cyclicity

Flowering and fruiting: August-January
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Life Expectancy

Annual.

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Source: Bibliotheca Alexandrina - EOL Ar

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Molecular Biology and Genetics

Molecular Biology

Statistics of barcoding coverage: Merremia cissoides

Barcode of Life Data Systems (BOLDS) Stats
Public Records: 0
Specimens with Barcodes: 3
Species With Barcodes: 1
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Source: Barcode of Life Data Systems (BOLD)

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Barcode data: Ipomoea sinensis

The following is a representative barcode sequence, the centroid of all available sequences for this species.


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Source: Barcode of Life Data Systems (BOLD)

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Statistics of barcoding coverage: Ipomoea sinensis

Barcode of Life Data Systems (BOLDS) Stats
Public Records: 1
Specimens with Barcodes: 1
Species With Barcodes: 1
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Conservation

Conservation Status

National NatureServe Conservation Status

United States

Rounded National Status Rank: NNA - Not Applicable

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NatureServe Conservation Status

Rounded Global Status Rank: G5 - Secure

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Notes

Comments

The taxonomy of the cordatesepalled, smallflowered ipomoeas in China needs further study. The Fl. Reipubl. Popularis Sin. account differs from other twentieth century floras in recognizing one, Aniseia biflora, instead of two species. The Chinese taxon has pantoporate, spinulose pollen grains, however, which indicates that it is a species of Ipomoea. The five known neotropical species of Aniseia all have nonspinulose, colpate pollen grains. The two issues not resolved in this account are whether one or two species should be recognized in China, and what names are to be applied to them. 

 Twentieth century floras for Africa, Asia, and Malesia recognize two species of smallflowered Ipomoea with cordate sepals: I. plebeia and I. sinensis. Several authors have pointed out that the original description of the Linnaean Convolvulus biflorus is ambiguous, and in the absence of any type specimen (at the herbaria LINN or S), they have reduced C. biflorus to the synonymy of Robert Brown's clearly defined and typified I. plebeia. Chinese specimens called I. (or Aniseia) biflora come very near to what has been called I. plebeia in contemporary African and Malesian floras.

Ipomoea sinensis, which occurs through much of the Old World tropics, is distinguished primarily by having peduncles to 4.5 cm long. The Fl. Reipubl. Popularis Sin. placed it in synonymy of Aniseia biflora. For the time being, the epithet biflora, which is well established in the Chinese literature, is here maintained to a single highly variable taxon defined much as in the Fl. Reipubl. Popularis Sin. A careful study of the entire complex of cordate-sepalled Ipomoea needs to be undertaken, however, to sort out the identities and nomenclature for the taxa involved.

The whole plant has several medicinal uses.

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Names and Taxonomy

Taxonomy

Comments: Native to New World tropics (Wunderlin, 1998).

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