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Species
Thunbergia grandiflora Roxb.
IUCN
NCBI
EOL Text
A large woody climber or twiner with quadrangular, strigose twigs. Leaves with 2-5 (-6) cm long scabrous petiole; lamina ovate or lanceolate-ovate, (6-) 8-15 (-16) x (3-) 4-12 cm, hairy on both sides except the scabrous costa and veins, ± cordate at 3-5-costate base, margins entire or coarsely toothed in the lower half, apically acute to acuminate. Flowers blue or violet with yellow centre, 6-8 cm long, c. 6 cm across, pedicellate, usually in axillary or terminal drooping racemes; bracts free or ± connate, ovate-oblong, 3-3.5 cm x 1.5-2 cm, acute-acuminate. Calyx truncate, velvety-rimmed, purplish. Corolla glabrous, tube 3-4.5 cm long, abruptly contracted near the base, lobes ± equal, patent, 3-4 cm long, obtuse. Stamens inserted at the throat, filaments flattened, anthers oblong, bithecous, anterior anthem with a single spur, posterior ones with 2, sharply curved spurs. Ovary glabrous. Capsule globular, contracted into a stout, c. 2 cm long flat beak.
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Rights holder/Author | eFloras.org Copyright © Missouri Botanical Garden |
Source | http://www.efloras.org/florataxon.aspx?flora_id=5&taxon_id=242352257 |
Thunbergia grandiflora (Roxb. ex Rottler) Roxb.
BASÓNIMO: Flemingia grandiflora Roxb. ex Rottler
Bejuco leñoso, voluble, de 10-15 m de largo. Tallos cilíndricos, hasta 2.5 cm de diámetro, estriados, puberulentos; corte transversal del tallo con la médula hueca y el tejido del xilema con anchos radios. Hojas opuestas; láminas 15-26 × 13-30 cm, ovadas o anchamente ovadas, cartáceas, el ápice agudo o acuminado, la base cordiforme o sub-cordiforme, los márgenes lobado-dentados, ciliados; haz verde obscuro, lustroso, puberulento, con la nervación poco prominente; envés verde claro, opaco, glabro o puberulento, con la nervación prominente; pecíolos 6-12 cm de largo, sulcados. Flores dispuestas en cimas axilares; pedicelos robustos, cilíndricos, 4-6 cm de largo; brácteas verde claro, membranáceas, ovadas, ca. 4 cm de largo, encubriendo el cáliz y el tubo de la corola. Cáliz verde, en forma de anillo, 4-5 mm de largo; corola lila o blanca, infundibuliforme, con 5 lóbulos, el tubo 6-7 cm de largo, amarillo claro en el interior, estrecho en la base, el limbo 6-7 cm de diámetro. Cápsula ca. 3 cm de largo, subglobosa en la base, la mitad superior en forma de pico, dehiscente en dos mitades.
Fenología: Florece todo el año y fructifica esporádicamente de mayo a julio.
Estatus: Exótica, muy agresiva, ampliamente cultivada y naturalizada en Puerto Rico.
Especimenes Estudiados: Acevedo-Rdgz., P. 7049; 9350; 9418.
Thunbergia grandiflora (Roxb. ex Rottler) Roxb., Hort. Geng. 45. 1814.
Basionym: Flemingia grandiflora Roxb. ex Rottler
Woody vine, twining, 10-15 m in length. Stems cylindrical, up to 2.5 cm in diameter, striate, puberulous; cross section of the stem with the pith hollow and the xylem tissue with wide rays. Leaves opposite; blades 15-26 × 13-30 cm, ovate or broadly ovate, chartaceous, the apex acute or acuminate, the base cordiform or subcordiform, the margins lobate-dentate, ciliate; upper surface dark green, shiny, puberulous, with slightly prominent venation; lower surface light green, ull, glabrous or puberulous, with prominent venation; petioles 6-12 cm long, sulcate. Flowers arranged in axillary cymes; pedicels robust, cylindrical, 4-6 cm long; bracts light green, membranaceous, ovate, ca. 4 cm long, covering the calyx and the corolla tube. Calyx green, in the form of a ring, 4-5 mm long; corolla lilac or white, infundibuliform, with 5 lobes, the tube 6-7 cm long, light yellow inside, narrow at the base, the limb 6-7 cm in diameter. Capsule ca. 3 cm long, subglobose at the base, the upper half in the form of a beak, dehiscent in two halves.
Phenology: Flowering throughout the year and fruiting sporadically from May to July.
Status: Exotic, very aggressive, widely cultivated and naturalized in Puerto Rico.
Selected Specimens Examined: Acevedo-Rdgz., P. 7049; 9350; 9418.
Habit: Climber
Fl. Per.: June-August.
License | http://creativecommons.org/licenses/by-nc-sa/3.0/ |
Rights holder/Author | eFloras.org Copyright © Missouri Botanical Garden |
Source | http://www.efloras.org/florataxon.aspx?flora_id=5&taxon_id=242352257 |
Barcode of Life Data Systems (BOLDS) Stats
Public Records: 0
Specimens with Barcodes: 4
Species With Barcodes: 1
United States
Rounded National Status Rank: NNA - Not Applicable
Rounded Global Status Rank: GNR - Not Yet Ranked
grandiflora: with large flowers
License | http://creativecommons.org/licenses/by-nc/3.0/ |
Rights holder/Author | Mark Hyde, Bart Wursten, Petra Ballings, Flora of Zimbabwe |
Source | http://www.zimbabweflora.co.zw/cult/species.php?species_id=163260 |
Thunbergia grandiflora is an evergreen vine in the family Acanthaceae.[2] It is native to China, India, Nepal, Indochina and Burma and widely naturalised elsewhere.[3] Common names include Bengal clockvine, Bengal trumpet, blue skyflower, blue thunbergia, blue trumpetvine, clockvine, skyflower and skyvine.[3]
Description[edit]
Plants may grow to about 20 metres in height and have a tuberous root system with a deep tap root.[2] The stalked, opposite leaves, which have a rough surface, are quite variable in shape. They may be triangular or ovate and the margins may be toothed, lobed or entire. Length is up to 20 cm and width is up to 6 cm.[2] The blue to mauve flowers are about 8 cm across with a 4 cm long tube that is pale yellow inside.[2] These are followed by pods containing seeds that are ejected several metres upon ripening. Plants also reproduce from segments that are washed down watercourses.[2]
With a minimum temperature of 10–13 °C (50–55 °F), this plant is cultivated as a houseplant in temperate regions,[4] and has gained the Royal Horticultural Society's Award of Garden Merit.[5]
The species has become a serious environmental weed in Australia on disturbed land along watercourses and in the wet tropics where it smothers other vegetation. It is commonly seen north of Sydney where it has been cultivated for many years.[2]
References[edit]
- ^ "Thunbergia grandiflora". Australian Plant Name Index (APNI), IBIS database. Centre for Plant Biodiversity Research, Australian Government, Canberra. Retrieved 8 January 2013.
- ^ a b c d e f "Thunbergia grandiflora". Weed Identification. Australian Weeds Committee. Retrieved 8 January 2013.
- ^ a b "Taxon: Thunbergia grandiflora Roxb.". Germplasm Resources Information Network (GRIN). United States Department of Agriculture, Agricultural Research Service, Beltsville Area. Retrieved 8 January 2013.
- ^ RHS A-Z encyclopedia of garden plants. United Kingdom: Dorling Kindersley. 2008. p. 1136. ISBN 1405332964.
- ^ "RHS Plant Selector - Thunbergia grandiflora". Retrieved 27 June 2013.
License | http://creativecommons.org/licenses/by-sa/3.0/ |
Rights holder/Author | Wikipedia |
Source | http://en.wikipedia.org/w/index.php?title=Thunbergia_grandiflora&oldid=635084496 |