Overview
Goeppertia picturata 'Argentea' is a cultivar of Goeppertia picturata (K.Koch & Linden) Borchs. & S.Suárez, the accepted botanical name confirmed by the International Plant Names Index and Plants of the World Online [1][2]. The combination was published by Borchsenius, Suárez and Prince on 25 June 2012 in Systematic Botany 37(3): 633, as part of a revision demonstrating that Calathea as previously circumscribed was polyphyletic and producing 246 new combinations [3]. Plants of the World Online records the native range of the species as Brazil — the states of Amazonas, Tocantins, and Acre — within the wet tropical biome [2].
The Royal Horticultural Society describes 'Argentea' as a clump-forming, evergreen rhizomatous perennial with elliptic, silvery white leaves edged with dark green margins, noting that racemes of small tubular flowers are seldom produced in cultivation [4]. The RHS common name on record is silver variegated calathea, and the Society has awarded this cultivar its Award of Garden Merit (AGM), given following trial and assessment to plants considered excellent for ordinary use in appropriate conditions and essentially stable in form and colour [4].
Nomenclature and Name Classes
Three distinct name classes apply to cultivated plants under the International Code of Nomenclature for Cultivated Plants (ICNCP): the registered cultivar epithet, any trade designation, and any patent denomination.
Registered cultivar epithet. The epithet 'Argentea' is the name by which this cultivar is recorded in the RHS Plant Finder [4]. The ICNCP requires a cultivar epithet to be enclosed in single quotation marks — hence 'Argentea', not Argentea in italics [5]. No protologue or formal registration document establishing the epithet has been located, and the date and authority of its first publication remain undocumented. The epithet derives from the Latin argenteus, meaning 'silvery', reflecting the leaf surface that distinguishes this selection from other cultivars of the species, notably 'Vandenheckei' [4].
Trade designation. No trade designation has been documented for this cultivar. The RHS Plant Finder lists the cultivar under the epithet alone, without a trade name [4].
Patent denomination. No plant patent bearing a denomination equivalent to 'Argentea' applied to Goeppertia picturata was located in the USPTO database. No patent denomination is therefore established for this cultivar.
Origin and Authorship
No originator is documented — this cultivar predates any registration authority for Marantaceae.
No parentage record, no date of first selection, no place of origin, and no namer are documented in any primary source located during research. The RHS Plant Finder entry makes no attribution of originator or namer [4]. Plants of the World Online confirms that Goeppertia picturata is native to Brazil [2], establishing the geographic source of the wild type; whether 'Argentea' arose from material collected in Brazil or from greenhouse selection elsewhere is not documented. Limited authoritative sources available; further research needed.
Registration Context
No International Cultivar Registration Authority has been appointed for Marantaceae. The ISHS Commission on Cultivar Registration and Nomenclature appoints ICRAs and monitors their work; its published list of appointed authorities does not include any organisation designated for Marantaceae, Goeppertia, or Calathea [5]. As a consequence, no formal registration system exists for cultivar epithets in this family, and no body holds authority to adjudicate priority, synonymy, or the validity of epithets such as 'Argentea'.
Digital Towns is an applicant aggregator for this family. It is not affiliated with, endorsed by, or operating under ISHS or any appointed ICRA. This registry records what authoritative sources document; it does not itself confer registration status on any cultivar epithet.
Documentation
The primary taxonomic authority for the accepted name is the IPNI record (LSID urn:lsid:ipni.org:names:60461183-2), which records the combination date, publication collation, and authority string [1]. The underlying revision is Borchsenius, Suárez and Prince (2012) in Systematic Botany 37(3): 620–635, which places G. picturata at page 633 [3]. Plants of the World Online accepts the name and supplies the native range and biome classification [2].
The sole institutional cultivar-level record located during research is the RHS Plant Finder entry (record 357228), which documents the cultivar epithet, the AGM designation, the morphological description, the H1A hardiness rating, the common name, and cultivation requirements including frost-free conditions and a minimum temperature of 16°C [4]. No peer-reviewed paper, botanic garden monograph, or plant patent specifically addressing 'Argentea' was located. The distinguishing traits field in the Digital Towns registry carries no entry because no formal registration document or plant patent describing diagnostic characters has been found. Limited authoritative sources available; further research needed.