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United States Department of Agriculture

Agricultural Research Service

Title: Three cultivars of Tecoma guarume

Authors
item Meerow, Alan
item Ayala-Silva, Tomas

Submitted to: HortScience
Publication Type: Peer Reviewed Journal
Publication Acceptance Date: November 8, 2007
Publication Date: April 1, 2008
Repository URL: http://hortsci.ashspublications.org
Citation: Meerow, A.W., Ayala Silva, T. 2008. Three cultivars of Tecoma guarume. HortScience. 43:286-583. Available: http://hortsci.ashspublications.org/cgi/content/full/43/2/546?ijkey=RERwgwgjhNLghug&keytype=ref

Interpretive Summary: We report on the release of Tecoma guarume ‘Miami Sunrise’, ‘Miami Sunset’, and ‘Tangelo’, superior seedling selections of a semi-deciduous subtropical/tropical flowering shrub, through the National Germplasm System. These three selections each showed consistent color variation that warranted their recognition as distinct cultivars. One (‘Miami Sunrise’) is shorter growing than the other two. We believe that these fast-growing cultivars have great potential for use as landscape shrubs in USDA Hardiness Zones 9A-11, and probably as root-hardy perennials in Zone 8.

Technical Abstract: Tecoma guarume is a semi-deciduous shrub rarely reaching 3 m in height, with yellowish-orange flowers that is endemic to Ica Department of south-central coastal Peru, mostly along rivers on sandy soils from 450-1200 m elevation. In this paper, we announce the formal recognition and release of three distinct floral color forms of this species, Tecoma guarume ‘Miami Sunrise’, ‘Miami Sunset’, and ‘Tangelo’ are seedling selections from progeny grown from seed received in 2000. While the majority of the seedlings grown produced uniformly yellowish-orange flowers, these three selections each showed consistent color variation that warranted their recognition as distinct cultivars. One (‘Miami Sunrise’) is of smaller stature than the other two. We believe that these fast-growing cultivars have great potential for use as landscape shrubs in USDA Hardiness Zones 9A-11, and probably as root-hardy perennials in Zone 8.

Last Modified: 8/27/2014
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