Wikipedia:Reference desk/Archives/Science/2023 January 14

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January 14

Plant identification / any naturally-occuring blue plants?

Can anyone identify any of these plants? https://i.ibb.co/gP2rk1f/Plant-Identification.jpg Also, what are some naturally-occurring blue colored plants, I remember someone did happen to give me an example before. 67.165.185.178 (talk) 14:22, 14 January 2023 (UTC). They gave me Eryngium_ovinum 67.165.185.178 (talk) 14:29, 14 January 2023 (UTC).

Probably a succulent specialist will be along to help you, but until then, the top right picture looks like some sort of Echeveria to me. Deor (talk) 15:05, 14 January 2023 (UTC)

Although the Wikipedia image isn't a great match, checking other sources would seem to support upper left being Curio ficoides. PianoDan (talk) 16:22, 14 January 2023 (UTC)

Or possibly Curio crassulifolius PianoDan (talk) 16:24, 14 January 2023 (UTC)

Eryngium_ovinum has blue-purple flowers, purple stems and its leaves are green. Modocc (talk) 18:53, 14 January 2023 (UTC)

The bottom one looks like some variety of Aeonium arboreum. Mikenorton (talk) 01:46, 15 January 2023 (UTC)

I guess Cyanobacteria aren't really plants, though they're strikingly blue and undergo photosynthesis.

There's the Blue spruce.  Card Zero  (talk) 09:36, 15 January 2023 (UTC)

George Carlin asked "why is there no blue food? And don't tell me about blueberries: they are blue on the vine, and purple on the plate." (Paraphrasing, from memory.) David10244 (talk) 08:00, 21 January 2023 (UTC)