Talk:Double-flowered

Doubled sepals?
The article says that doubling is due to multiple petals, but in such plants as double flowered tulips and narcissus with a showy perianth rather than just a showy corolla, it may well be due to double sepals as well. Imc (talk) 19:45, 3 February 2009 (UTC)

New book (2018)
New (2018) book ... haven't yet read it.
 * Double flowers : the remarkable story of extra-petalled blooms.
 * Author: Nicola Ferguson; Charles Quest-Ritson
 * Publisher:	[London] : Pimpernel Press Ltd, [2018].
 * http://www.worldcat.org/title/double-flowers-the-remarkable-story-of-extra-petalled-blooms/oclc/986738980&referer=brief_results

Double-flowered is not a frequent topic of literature. WorldCat lists a few recent articles, but the above appears to be the first new book specific to the topic since 1983 (below):
 * Double flowers : a scientific study
 * Author: Joan Reynolds John Tampion
 * Publisher:	New York [u.a.] Scientific and Acad. Ed. ©1983
 * http://www.worldcat.org/title/double-flowers-a-scientific-study/

Double / sterile flowers are gaining topical interest as a factor impacting pollinators.

GeeBee60 (talk) 15:44, 31 July 2018 (UTC)