''Urceolina'' × ''grandiflora'', formerly known as ''Eucharis'' × ''grandiflora'', is a natural hybrid putatively between '' U. moorei'' and '' U. sanderi'' of the

family Family (from la, familia) is a Social group, group of people related either by consanguinity (by recognized birth) or Affinity (law), affinity (by marriage or other relationship). The purpose of the family is to maintain the well-being of its ...

Amaryllidaceae,

native Native may refer to: People * Jus soli, citizenship by right of birth * Indigenous peoples, peoples with a set of specific rights based on their historical ties to a particular territory ** Native Americans (disambiguation) In arts and entert ...

to western

Colombia Colombia (, ; ), officially the Republic of Colombia, is a country in South America with insular regions in North America—near Nicaragua's Caribbean coast—as well as in the Pacific Ocean. The Colombian mainland is bordered by the Car ...

and western

Ecuador Ecuador ( ; ; Quechua: ''Ikwayur''; Shuar: ''Ecuador'' or ''Ekuatur''), officially the Republic of Ecuador ( es, República del Ecuador, which literally translates as "Republic of the Equator"; Quechua: ''Ikwadur Ripuwlika''; Shuar: ''Eku ...

. The aneutriploid species '' U. amazonica'' is often misidentified as ''U.'' × ''grandiflora''. Both of them are sterile plants with large fragrant white flowers, but they differ in leaf length, free filament shape, and staminal cup length: * ''U.'' × ''grandiflora'' has shorter leaf blades (20–33 cm × (10–)13–16 cm), linear or narrowly

subulate The following is a list of terms which are used to describe leaf morphology in the description and taxonomy of plants. Leaves may be simple (a single leaf blade or lamina) or compound (with several leaflets). The edge of the leaf may be regular o ...

free filaments (1–1.5 mm wide at the base), and staminal cups (5–7 mm long to the apex of teeth) shorter than free filaments (7–8.5(–10) mm long). * ''U. amazonica'' has longer leaf blades ((20–)30–40(–50) cm × (10–)12–18 cm), subulate free filaments (2.8–3.4 mm wide at the base), and staminal cups (11.2–13.8 mm long to the apex of teeth) longer than free filaments (6.5–8(–10) mm long). Eucharis lowii 142-8646.jpg, ''U.'' × ''grandiflora'' has shorter leaf blades, slender free filaments, and staminal cups shorter than free filaments. Eucharis amazonica - illustration.jpg, ''U. amazonica'' has longer leaf blades, flat free filaments, and staminal cups longer than free filaments.

References

x grandiflora Plants described in 1854 Garden plants Flora of Colombia Flora of Ecuador Interspecific plant hybrids {{Amaryllidaceae-stub