One reason for its fragility is that the Siler pincushion cactus only grows on gypsiferous soils (soils high in the whitish mineral, gypsum) in southern Utah and northern Arizona. It cannot be ...

Pincushion cactus (Mammillaria grahamii) goes by many names, and is likely to be blooming during the spring, and also the late monsoon, with a flowering season spread out from April to September ...

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Pincushion cactus A pincushion cactus, nurtured by monsoon rains, is in brilliant bloom in the Catalina Foothills on Tuesday, July 18. Photo by Doug Kreutz, Arizona Daily Star.

The cactus Wellard holds in his hand is pincushion number 15. He has extracted it from the place where it has spent its approximately decadelong life as carefully as if he was working on an ...

Escobaria, commonly called pincushion cactus or foxtail cactus, is different from most other cacti in that it lacks ribs. Instead, Escobaria cacti have lobed protrusions called tubercles.

Golden barrel cactus Echinocactus grusonii The golden barrel, or golden ball cactus, is a small, slow-growing cactus whose rows of pointy barbs resemble a pincushion full of pins.

As June, progresses, the flowers start to peak in the foothills, providing pops of color as plants like the pincushion cactus, wild iris and mountain mahogany begin to bloom.

Plants make sounds outside human earshot in response to stress - from being cut or a lack of water - that can be heard up to five metres away. Are they talking to each other?

The Pincushion Cactus comes in tons of varieties. But this rounded succulent's best asset by far is the daisy-like flowers that grow on top of it.

Fewer than ten thousand individuals remain worldwide of the Siler pincushion cactus, according to a 2006 survey that Wellard fears is now an overestimate.