Roughly what share of all flowering plant species are pollinated by animals, mostly insects?
Answerover 80%
Animal pollinators also affect 35% of the world's crop production.
Source: Food and Agriculture Organization of the UN (FAO) fao.org
Nature · Facts & sources
Flower facts & stats
5 sourced facts about flowers, each with the context behind the number. 4 more are in today's round and appear here after it closes.
The basics
How large can a Rafflesia arnoldii flower, one of the world's biggest single blooms, grow across?
Answerup to 1 m across
This reddish-brown, five-lobed rainforest flower grows only on Tetrastigma vines in Sumatra, Indonesia.
Source: Royal Botanic Gardens, Kew kew.org
Going deeper
Which U.S. state had the highest floriculture (flower and plant) sales in 2024?
AnswerFlorida ($1.13 billion)
Florida edged out California ($1.03 billion); together they made up 32% of all U.S. floriculture sales.
Source: USDA National Agricultural Statistics Service (2024) nass.usda.gov
Expert level
About how many species of vascular plants are known to science?
Answersome 350,000
Discovery isn't finished: scientists still formally name about 2,500 new plant species each year.
Source: Royal Botanic Gardens, Kew, State of the World's Plants and Fungi 2023 (2023) kew.org
About how many new plant species do scientists formally name each year?
Answerabout 2,500
Discovery is far from finished: Kew estimates that 3 in 4 plant species still undescribed are likely already threatened with extinction.
Source: Royal Botanic Gardens, Kew, State of the World's Plants and Fungi 2023 (2023) kew.org
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