22 November 2024

The world's largest bromeliad

Puya raimondii, also known as the Queen of the Andes (English), titanka and ilakuash (Quechua) or puya de Raimondi (Spanish), is the largest species of bromeliad, its inflorescences reaching up to 15 m (50 ft) in height. It is native to the high Andes of Bolivia and Peru...

The Queen of the Andes habit of semelparity, reproducing once and dying shortly afterwards, has evolved independently in very distantly related organisms. In plants this monocarpic strategy is quite common with annual and biennial plants being short lived examples, but it is a much rarer strategy for long-lived plants. Other species with unbranched rosettes like Puya raimondii have a predisposition to evolve this to use this lifestyle.
New word for me, so here's the wiki on semelparity:
Semelparity and iteroparity are two contrasting reproductive strategies available to living organisms. A species is considered semelparous if it is characterized by a single reproductive episode before death, and iteroparous if it is characterized by multiple reproductive cycles over the course of its lifetime. Iteroparity can be further divided into continuous iteroparity (primates, including humans and chimpanzees) and seasonal iteroparity (birds, dogs, etc.) Some botanists use the parallel terms monocarpy and polycarpy. (See also plietesials.)

In truly semelparous species, death after reproduction is part of an overall strategy that includes putting all available resources into maximizing reproduction, at the expense of future life... This distinction is also related to the difference between annual and perennial plants.

And the unexciting etymology of bromeliad: "one of a group of related plants indigenous to South America and the West Indies, from Modern Latin Bromeliaceæ, family name given by Linnæus, for Olaus Bromel (1639-1705), Swedish botanist."

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