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Iris (Reuleaux triangle)

Iris

Description:

'..Irises are perennial herbs, growing from creeping rhizomes (rhizomatous irises) or, in drier climates, from bulbs (bulbous irises)...' wikipedia There are up to 300 species of Iris.

Habitat:

Worldwide

Notes:

Mathematics. I'm sure it's coincidental but this shape is very close to a 'Reuleaux triangle' - the only shape other than a circle with a constant diameter right the way round. It is sometimes used in engineering for this reason. Read more about this strange but useful shape here http://en.wikipedia.org/wiki/Reuleaux_tr...

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2 Comments

arlanda
arlanda a year ago

Nice three-fold symmetry!

MaryEvans2
MaryEvans2 a year ago

Beautiful

Victoria, Australia

Lat: -37.90, Long: 145.31

Spotted on Apr 25, 2012
Submitted on Apr 25, 2012

Reference

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Iris Yellow flag iris Siberian Iris Bearded Iris 'Silverado'

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