Cestrum fasciculatum (Introduced- UK/ USA)

Cestrum fasciculatum (Schltdl.) Miers, London J. Bot. 5: 151 1846. (Syn: Cestrum hartwegii Dun.; Cestrum newellii (Veitch) G.Nicholson; Cestrum spigelioides Zuccarini ex Francey; Habrothamnus elegans Scheidw. ex Walp. (ambiguous synonym); Habrothamnus fasciculatus (Schltdl.) Benth.; Habrothamnus fasciculatus (Schltdl.) Brongn.; Habrothamnus hartwegii (Dun.) Seem.; Habrothamnus magnificus Hort. ex Francey; Habrothamnus newellii Veitch; Habrothamnus zephirinae Hort. ex Francey; Meyenia fasciculata Schltdl.);
.
Mexico; Introduced: California, East Himalaya, New Zealand North, New Zealand South, St.Helena as per POWO;

Mexico (Hidalgo, Oaxaca, Puebla, Queretaro, San Luis Potosi, Tamaulipas, Veracruz), Darjeeling (I), USA (I) (California (I)) as per Catalogue of Life;

As per Factsheet:

C. fasciculatum and C. elegans are similar in appearance, the usual difference being cited as C. fasciculatum having larger flowers. C. elegans also tends to have flowers which are in the “pink” range while C. fasciculatum flowers are usually described as being scarlet.

The outer surface of the calyx and corolla is also cited as being pubescent in C. fasciculatum but glabrous in C. elegans.

However C. fasciculatum cultivar “Newellii” (also as C. Newellii) is considered to be a hybrid between C. fasciculatum and C. elegans, most horticultural sources citing it as having glabrous corollas; true distinctions are unclear.

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Solanaceae week: Cestrum fasciculatum Miers:
uploading an exotic plant photographed at Kew Gardens.

I hope this particular shrub is also found planted as ornamental in temperate areas of India and by photographs of ..; it is recorded at Kodaikanal hills of TN.

Name: Cestrum fasciculatum Miers
Family Solanaceae
Native: Mexico