Description: Herb up to 3 m with stout, erect stems. Leaves large, oblong, acuminate. Flowers 10–13 cm. (4-5") long, honeysuckle-scented, borne in a short, terminal raceme; calyx and corolla of a flower (generally used when the two are similar).">perianth tubular, the three outer petaloid lobes linear-oblong, convolute, reflexed, tinged green, the three inner ones straight and extended, recurved at end, white, tinted yellowish-green.
WCSP (2019). World Checklist of Selected Plant Families. Facilitated by the Royal Botanic Gardens, Kew. Last accessed on Friday, 22 February, 2019.
Image #00 (cropped) & #01 (original) used with the permission of the National Museum of Natural History, Smithsonian Institution, 10th and Constitution Ave. N.W., Washington, DC 20560-0193. Last accessed on Wednesday, 17 July, 2019.
Wikispecies. Last accessed on Wednesday, 29 January, 2020.
data regenerated on Wed, 23 Sep 2020 22:25:45 -0400 [bcm v4.0]