Ismene amancaes
species of plant
Ismene amancaes, commonly called amancae or amancay, is a herbaceous plant species in the family Amaryllidaceae and native to the coastal hills of Peru.
Description
I. amancaes is a species with spherical bulbs 3.5–5 cm in diameter. The leaves are strap-shaped, 25–50 cm long and 2.5–5 cm wide, bright green. The 2–6 yellow pedicellate flowers are borne at the end of a scape up to 33 cm long. The floral tube is greenish yellow, 5–7.5 cm long, bearing at the end the tepals, which are linear to narrowly lanceolate, 6–7.5 cm long, with green tips. The floral corona is funnel-shaped, yellow with green stripes, 5–6 cm long, 6–8.5 cm wide, bearing the stamens facing inwards.
Distribution and habitat
Endemic to Peru, Ismene amancaes inhabits coastal hills up to 1500 m of elevation, especially near the city of Lima, as part of the lomas ecosystem.
Chemical compounds
It is reported that I. amancaes contains the alkaloids galantamine and narcissidine.
History
Remains of I. amancaes have been found in archaeological sites near the city of Lima.
The flowering of this species was the subject of a festival ("Festival de Amancaise") celebrated in June in Lima, until the first half of the 1800s.
The public source identifies “Ismene amancaes” as species of plant. This brief keeps that definition visible, then builds a research path around Ismene, amancaes and species.
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A short description can identify a subject without explaining its stakes. For “Ismene amancaes”, the useful work is to connect “species of plant” to the records capable of establishing context and consequence.
Datasets, specimens, observations and peer-reviewed methods provide the appropriate test for the technical claims summarized here. The source revision retrieved here is dated May 19, 2026. The linked authority identifier is Q4739516. None of the 0 selected statements returned an explicit reference. The first chronological checks are 1500.
Current terminology should not be projected backward without checking the classification used when the underlying evidence was created. The lead is largely declarative, so disagreement and counter-evidence require a deliberate search beyond the opening account. Authority statements aid reconciliation but still require their own references, qualifiers and ranks to be checked.
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This entry incorporates text from “Ismene amancaes” on English Wikipedia. Contributors are listed in the page history. Text is available under the Creative Commons Attribution-ShareAlike 4.0 License. Selected authority identifiers and statements are retrieved from Wikidata under CC0; their references and qualifiers remain part of the verification path.