Agave inflorescence / Downtown Dallas

A recent cactus fiend

10 Notes

Agave inflorescence / Downtown Dallas

Posted 1 month ago

4 Notes

Cleared out the rest of the deadness that was my Agave salmiana. Let’s see how many pups emerge.

Posted 1 month ago

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The Great Outdoors, Austin

There were a great number of cacti and succulents in bloom during my recent trip to TGO on South Congress in Austin. Others, just looked awesome in the rain. Here are some of my favorites:

1. *Gasteraloe *species

2. *Euphorbia milii* / Crown of Thorns

3. *Graptopetalum paraguayense* ‘White Ghost’

4. Euphorbia bipleurifolia

5. *Aloe striata* ‘Coral Aloe’

6. *Dyckia* species

7. *Echinocactus grusonii cristata* / Crested Golden Barrel

8. *Aloe* inflorescences

9. *Agave ovatifolia* ‘Vanzi’

Posted 1 month ago

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The Great Outdoors, in Austin, has planters unlike anything I have seen. They are mixing a variety of *Opuntia*, *Mammillaria*, *Agave*, and other genus in classic way, but are mixing it up by placing some of the specimens in natural, woven orbs. I didn’t poke around to see exactly how they are doing it, but it has the effect of the old ship in the bottle. They must be either soaking and stretching the orbs or cutting off the portion around the plant. Either way, they look quite intriguing!

Posted 1 month ago

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Posted 2 months ago

via visualizingmath

2300 Notes

Examples of the Golden Angle in NatureIn geometry, the golden angle is the smaller of the two angles created by sectioning the circumference of a circle according to the golden section; that is, into two arcs such that the ratio of the length of the larger arc to the length of the smaller arc is the same as the ratio of the full circumference to the length of the larger arc.

Algebraically, let

a+bbe the circumference of a circle, divided into a longer arc of lengthaand a smaller arc of lengthbsuch thatThe golden angle is approximately 137.508°, or about 2.39996 radians.

The golden angle plays a significant role in the theory of phyllotaxis. Phyllotaxis or phyllotaxy is the arrangement of leaves on a plant stem. Phyllotactic spirals form a distinctive class of patterns in nature. Source: Wikipedia.

Above:

An aloe vera plant. Source.The head of a sunflower. Source.A Romanesco broccolli. Source.A pine cone. Source.Unknown.(Virtual high-five to anyone who can tell me what it is.) Source.There are many misconceptions regarding phi, the golden ratio, and the golden angle. Read this trustworthy blog post by 1ucasvb to properly learn more about the golden angle!

#5 is an easy one: Agave victoriae reginae

(And this post is everything I want my blog to be when it grows up)

and #1 is A. polyphylla, too.Posted 3 months ago

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Agave salmiana / aftermath

It looks like the central cones are also dying - and the whole plants reek of rot.