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Overview

Comprehensive Description

Miscellaneous Details

"Notes: Western Ghats & Eastern Ghats, Moist Deciduous Forests"
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Brief

Flowering class: Dicot Habit: Climber
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Distribution

National Distribution

United States

Origin: Unknown/Undetermined

Regularity: Regularly occurring

Currently: Unknown/Undetermined

Confidence: Confident

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Global Range: Throughout the tropics and West Indies; FL Keys.

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Distribution: In disturbed areas, on roadsides and in pastures and vacant lots, at lower to middle elevations. Also on Vieques, St. Croix, St. John, St. Thomas, and Tortola; throughout tropical America.

Public forest: Guánica and Susúa.

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"Maharashtra: Kolhapur, Pune, Raigad, Satara, Thane Karnataka: Chikmagalur, Coorg, Hassan, Mysore, N. Kanara, Shimoga, S. Kanara Kerala: All districts Tamil Nadu: Coimbatore, Madurai, Namakkal, Nilgiri, Salem"
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"
Global Distribution

Pantropical

Indian distribution

State - Kerala, District/s: All Districts

"
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Physical Description

Diagnostic Description

Merremia umbellata (L.) H. Hallier, Bot. Jahrb. Syst. 16: 552. 1893.

Fig. 76. H-L

Basionym: Convolvulus umbellatus L.

Synonym: Ipomoea polyanthes Willd. exRoem. & Schult.

Slightly woody vine, climbing or creeping, twining, attaining 5 m in length, with scarce milky latex. Stems slender, cylindrical, glabrous or pubescent, green or copper-colored, with a pair of spiniform projections at the nodes. Leaves alternate; blades simple, 4-17 × 5-12 cm, ovate or lanceolate, chartaceous, glabrous, the apex obtuse, acute, or short-acuminate and mucronate, the base cordiform or sagittate, the margins undulate; upper surface yellowish green, dull, glabrous, with the venation sunken, covered with minute white hairs; lower surface glabrous, with the veins puberulous; petioles cylindrical, usually longer than the blade, pubescent. Flowers in umbelliform cymes, axillary; peduncles shorter than the petioles, angular or cylindrical, puberulous, sometimes with winged projections; pedicels ca. 2 cm long, puberulous. Calyx green, the sepals unequal, 1-1.5 cm long, glabrous, overlapping, ovate or rounded; corolla brilliant yellow, infundibuliform, 2.5-3 cm long, the limb ca. 3 cm in diameter, with obtuse lobes; stamens white, not exserted; stigmas greenish, slightly exserted. Capsule globose, 4-valvate, ca. 1 cm long, brown, covered by the persistent sepals; seeds obtusely trigonal, 5-8 mm long, brown, velvety, with a line of longer hairs on two of the margins.

Phenology: Flowering and fruiting from November to April and sometimes later in the year.

Status: Native, very common.

Selected Specimens Examined: Acevedo-Rdgz., P. 2467; 2472; 4019; 4103; 5402; 6991; Britton, N.L. 10050; Goll, G.P. 499; Sargent, F.H. 90; Shafer, J.A. 2884; Sintenis, P. 829; Stevenson, J.A. 1148.

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Diagnostic

"Twiners; young shoots puberulous. Leaves 4-7 x 1.5-3.5 cm, ovate-lanceolate, base cordate or rounded, apex acuminate, pubescent below; petiole 1.5-2.5 cm long. Inflorescence axillary umbelliform cymes; peduncle 1-3 cm long; pedicels 7-10 mm long. Sepals 6-8 mm long, ovate-lanceolate, apiculate, scarious on margins. Corolla white, campanulate; tube 2-3 cm long, pubescent without; limb 2.5-3 cm across. Stamens 5, unequal; anthers twisted. Ovary 2-celled, ovules 2 in each cell; stigma capitate. Capsule 8-10 x 5-6 mm, ovoid. Seeds long hairy, black."
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Diagnostic

Habit: Climbing Herb
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Ecology

Habitat

Comments: Fences, thickets, waste places, disturbed ground, pinelands at 0-1000 feet.

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General Habitat

"All type of forests, also in the plains"
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Life History and Behavior

Cyclicity

Flowering and fruiting: January-April
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Molecular Biology and Genetics

Molecular Biology

Barcode data: Merremia umbellata

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


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Statistics of barcoding coverage: Merremia umbellata

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

Conservation Status

National NatureServe Conservation Status

United States

Rounded National Status Rank: NNR - Unranked

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NatureServe Conservation Status

Rounded Global Status Rank: G5 - Secure

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Wikipedia

Merremia umbellata

Merremia umbellata (common names include hogvine, yellow merremia, and yellow wood rose) is a thin vine growing a maximum thickness of 2 cm (0.79 in).[1] It has many uses in Indian traditional medicines.[2] The flowers attract bees, butterflies and birds.

References [edit]

  1. ^ Hyland, B. P. M.; Whiffin, T.; Zich, F. A. et al. (Dec 2010). "Factsheet – Merremia umbellata subsp. orientalis". Australian Tropical Rainforest Plants. Edition 6.1, online version [RFK 6.1]. Cairns, Australia: Commonwealth Scientific and Industrial Research Organisation, through its Division of Plant Industry; the Centre for Australian National Biodiversity Research; the Australian Tropical Herbarium, James Cook University. Retrieved 14 May 2013. 
  2. ^ "Merremia umbellata – Hogvine". Flowers of India (website). Retrieved 14 May 2013. 
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