Thunbergia gregorii

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Thunbergia gregorii
Flowers vines plants pods.jpg
Scientific classification
Kingdom: Plantae
(unranked): Angiosperms
(unranked): Eudicots
(unranked): Asterids
Order: Lamiales
Family: Acanthaceae
Genus: Thunbergia
Species:T. gregorii
Binomial name
Thunbergia gregorii
S.Moore, 1894

Thunbergia gregorii, commonly known as orange clockvine or orange trumpet vine, is a herbaceous perennial climbing plant species in the family Acanthaceae, native to East Africa and sometimes cultivated as an ornamental vine. The bright, pure all-orange flowers distinguish it from the related black-eyed Susan ( Thunbergia alata ). [1]

Acanthaceae family of plants

Acanthaceae is a family of dicotyledonous flowering plants containing almost 250 genera and about 2500 species. Most are tropical herbs, shrubs, or twining vines; some are epiphytes. Only a few species are distributed in temperate regions. The four main centres of distribution are Indonesia and Malaysia, Africa, Brazil, and Central America. Representatives of the family can be found in nearly every habitat, including dense or open forests, scrublands, wet fields and valleys, sea coast and marine areas, swamps, and mangrove forests.

<i>Thunbergia alata</i> species of plant

Thunbergia alata, commonly called black-eyed Susan vine, is a herbaceous perennial climbing plant species in the Acanthaceae family. It is native to Eastern Africa, and has been naturalized in other parts of the world. It is found in Cerrado vegetation of Brazil and Hawaii, along with eastern Australia and the southern USA in the states of Texas and Florida.

Spencer Le Marchant Moore described the species in 1894, naming it after John Walter Gregory. [1] Within the genus Thunbergia , it is most closely related to T. alata, the two being placed in the subgenus Parahexacentris. [2] The common name of clockvine relates to the vine spiralling upwards in a clockwise direction. [1]

Spencer Le Marchant Moore was an English botanist.

John Walter Gregory British geologist and explorer

Prof John Walter Gregory, FRS, FRSE FGS LLD was a British geologist and explorer, known principally for his work on glacial geology and on the geography and geology of Australia and East Africa.

Thunbergia gregorii is an evergreen vine that grows to 8–10 ft. tall, or if left without support can become an extensive groundcover.

It is native to east Africa. [2]

Thunbergia gregorii is pollinated by bees. [2]

Hardy to -1 C, Thunbergia gregorii flowers more profusely and even year-round in warmer climates, while restricted to summer and autumn in cooler climates. [3]

Propagation is by cuttings taken in the summer. [1]

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  1. 1 2 3 4 Armitage, Allan M. (2011). Armitage's Vines and Climbers: A Gardener's Guide to the Best Vertical Plants. Timber Press. p. 193. ISBN   9781604692891.
  2. 1 2 3 Schönenberger, Jürg (1999). "Floral structure, development and diversity in Thunbergia (Acanthaceae)". Botanical Journal of the Linnean Society. 130 (1): 1-36 [10-11]. doi:10.1111/j.1095-8339.1999.tb00779.x.
  3. Mathias, Mildred E. (1985). Flowering Plants in the Landscape. University of California Press. p. 126. ISBN   9780520054141.