Sheep-eating Plant

Names and Synonyms

Common Names

• Sheep-eating Plant
• Puya

Scientific Names

Accepted name

Synonyms

• Puya chilensis var. gigantea
• Puya coarctata
• Pitcairnia coarctata
• Puya gigantea
• Puya quillotana
• Pourretia coarctata
• Pitcairnia chilensis
• Puya suberosa

Regional and Traditional Names

Sources: Wikidata, Catalogue of Life

Taxonomical Classification

This plant belongs to the kingdom Plantae and is classified under the phylum Streptophyta within the class Equisetopsida. It is further categorized under the subclass Magnoliidae and the order Poales, falling into the family Bromeliaceae. Finally, it is identified by the genus Puya, specifically as the species Puya chilensis.

Sources: The World Checklist of Vascular Plants (WCVP)

Distribution

This plant is found exclusively within a specific region of Southern South America. Its natural habitat is restricted to the central part of the country of Chile. Within this territory, the species occupies localized ecological niches characteristic of the Chilean landscape. This narrow distribution makes the plant an endemic feature of the local flora. Consequently, its presence is a defining biological marker of the Central Chile geographical zone.

Sources: The World Checklist of Vascular Plants (WCVP)

Botanical Identification

Ecology

The ecology of Puya chilensis is characterized by its specialized adaptation to high-altitude environments within the Andean landscapes. This species thrives across a significant altitudinal gradient, occupying a specific ecological niche that spans an elevational range from a minimum of 1000 m AMSL to a maximum of 2500 m AMSL. Within this vertical distribution, the plant is typically found in rocky, well-drained substrates where it can withstand the unique climatic stressors of the montane zones. Its presence in these mid-to-high elevation belts dictates its interaction with local pollinators and its ability to endure the fluctuating temperature regimes and intense solar radiation characteristic of these specific altitudinal strata.

Elevational range max:

2500 m AMSL

Elevational range min:

1000 m AMSL

Life history

The life history of Puya chilensis is characterized by its status as a perennial organism, allowing it to persist in its natural habitat over many growing seasons. As a plant that undergoes long-term development, its growth strategy is centered on longevity rather than rapid, single-season cycles. In terms of its structural life form, it is classified as a hemicryptophyte, meaning its perennating buds are located at the soil surface, protected by the surrounding organic matter or leaf bases. This life form enables the species to endure environmental fluctuations while maintaining the capacity for regrowth from these protected nodes.

Life form :

hemicryptophyte

Lifecycle :

perennial

Morphology

The morphology of Puya chilensis is characterized by its growth form as a large, non-woody herb, typically manifesting as a robust, self-supporting rosette. As a terrestrial organism, it does not exhibit aquatic, semiaquatic, or epiphytic tendencies, nor does it function as a climber, liana, or vine, instead maintaining a stable, self-supporting structure. The plant is an independent species, lacking any parasitic life strategy, and its physical constitution is strictly non-woody, distinguishing it from shrub or tree forms.

Aquatic :

terrestrial

Climber :

self-supporting

Epiphyte :

terrestrial

Growth form :

herb

Parasite :

independent

Woodiness :

non-woody

Reproduction

Reproduction in Puya chilensis is characterized by the production of specialized propagules that facilitate the continuation of the species within its natural habitat. The reproductive cycle culminates in the development of seeds that exhibit a highly uniform physical profile. Based on quantitative botanical data, the seed mass of this species is remarkably consistent, with a mean seed mass of 0.00082 g. This uniformity is reflected in the extreme narrowness of its distribution, as both the maximum and minimum recorded seed mass values are identical at 0.00082 g. This precise measurement indicates a standardized energy investment per seed, ensuring that each individual propagule possesses the same baseline resources for initial germination and establishment.

Seed mass mean:

0.00082 g

Sources: Global Inventory of Floras and Traits (GIFT)

Plant Parts

Puya chilensis has 2 reported plant parts identified across 2 scientific publications and several other databases that are studied for medicinal purposes. The most consistently reported plant part include flower, stem.

Flower

1. Plants (Basel, Switzerland)

Stem

1. Plants (Basel, Switzerland)

Chemicals

Puya chilensis has 4 reported phytochemicals identified across 2 scientific publications and several other databases. The most consistently reported chemicals include Anthraquinones, Flavonoids, Phenols, fatty acid esters.

Anthraquinones

1. Plants (Basel, Switzerland)

Flavonoids

1. Plants (Basel, Switzerland)

Phenols

1. Plants (Basel, Switzerland)

fatty acid esters

1. Plants (Basel, Switzerland)

Activities

Puya chilensis has 1 reported activities identified across 2 scientific publications and several other databases. The most consistently reported activities include Cytotoxic.

Cytotoxic

1. Plants (Basel, Switzerland)

Medicinal Uses

Puya chilensis has 2 reported medicinal uses identified across 2 scientific publications and several other databases. The most consistently reported uses include cancer, colon cancer.

Most Reported Uses

Preparations