Orange Is The New

by Joe Schofield

Title

Orange Is The New

Artist

Joe Schofield

Medium

Photograph

Description

Thunbergia gregorii (Orange Clock Vine) Sold: 7-11-14



An evergreen vine that grows to 8-10 ft. tall or if left without support can become an extensive groundcover. The bright, pure orange flowers distinguish it from Thunbergia alata; it blooms year-round in coastal California gardens. Plant in full sun and water only occasionally. This vine is cold hardy to 25 degrees F and will come back from the ground if nipped by a frost. It makes a great chain-link fence climber or a ground cover. Thunbergia gregorii comes from tropical Africa, and though similar to its South African relative, the Black-Eyed-Susan Vine (Thunbergia alata), this plant is easily disguisable by its lack of the dark-centered eye of the flower and the wingless petioles. The name for the genus honors the Swedish naturalist Carl Peter Thunberg (1743-1828) who was a student of Linnaeus and spent several years botanizing the Cape of Good Hope. Thunbergia gregorii is considered synonymous with Thunbergia gibsonii and both names were authored by the English botanist Spencer Le Marchant Moore (1850�1931). Moore reportedly named this plant in 1894 to honor his colleague John Walter Gregory (1864-1932), a Scottish explorer and paleontologist. It was on Gregory's travels from 1892-1893 when he explored the Great Rift Valley and collected the type specimen of Thunbergia gregorii. Both names Thunbergia gregorii and T. gibsonii, however, are listed as "unresolved" on The Plant List, the collaborative effort of the Royal Botanic Gardens at Kew and the Missouri Botanic Gardens.

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April 13th, 2014

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