Cleistocactus brookeae
Cleistocactus is a South American genus of slender-stemmed columnar cacti, often with narrow tubular flowers ("cleisto" means closed, because the flowers do not open widely like many other cactus flowers). This one is Cleistocactus brookeae, from Bolivia, notable for the way its flowers rise up alongside the stem and then bend outward at the tip - like little periscopes. Hummingbirds insert their beaks to gain access to the nectar within.
-Brian
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Plant of the Day
Thursday 14 December 2023
These columnar cacti, Cleistocactus hyalacanthus, branches at the base to form a cluster of stems densely clad in yellowish-white needle-like spines. This species is from Bolivia to North West Argentina and grows primarily in the desert or dry shrubland.
Jill Raggett
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Golden rats tail bloom 🌺
ID: Cleistocactus winteri 'Golden Rat Tail Cactus'
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Shadow puppets
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Research: Structured water uses in improving rhizosphere microbiota and growth of Cleistocactus strausii (Utilizzo di acqua strutturata nel miglioramento della microbiologia della rizosfera e nella crescita di Cleistocactus strausii).
Author: Domenico Prisa *CREA Research Centre for Vegetable and Ornamental Crops, Council for Agricultural Research and Economics, Via dei Fiori 8, 51012 Pescia, PT, Italy.Research Article
GSC Advanced Research and Reviews, 2024, 18(03), 022–028.Article DOI: 10.30574/gscarr.2024.18.3.0081DOI url: https://doi.org/10.30574/gscarr.2024.18.3.0081Publication history:Received on 14 January 2024;…
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Le froid et l’humidité c’est pour bientôt alors on rentre les coussins ! Sur le podium pour une séance photo, venez voir nos gros bébés 🌵 #cactus #hivernage #succulentes #lescacteesdestjean #lescacteesdesaintjean #echinocactus #grusonii #groscactus #cactusaddict #passioncactus #pepiniere #drome #pachycereuspringlei #cleistocactus (à Les cactées de st jean) https://www.instagram.com/p/CjGudZkDU-5/?igshid=NGJjMDIxMWI=
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✨ Cleistocactus Colademononis (Monkey tail) ✨
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The blossoms of a cleistocactus... um... :D
They do not bloom before the age of 10 and this one here is about 40 years old.
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macro of cleistocactus strausii aka silver torch cactus
do not touch, even though he looks so fuzzy
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Cleistocactus strausii
While many species of Cleistocactus have a sprawling habit (the slender stems starting out growing upward, but then arching to the side), C. strausii is one of those with stems rigid enough to stay upright. A dense covering of needle-like spines and hairs gives the plants a shaggy look, with the tubular flowers jutting out at right angles. Pictured are two different forms of the species, one with longer and narrower flowers, and the other with shorter and furrier flowers. Each is delightful in its own way. Cleistocactus strausii comes from Bolivia.
-Brian
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Plant of the Day
Wednesday 1 February 2023
Adding a vertical element to this cacti house is Cleistocactus strausii (silver torch). This is a vigorous cactus covered in white spines on hairy, bluish-grey columns. It must be lovely when covered in tubular deep red or burgundy flowers which are scattered along the stems in summer.
Jill Raggett
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Cleistocactus brookeae
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Cleistocactus strausii / Wooly torch inflorescences
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Utilizzo di Te' di lombrico nella biostimolazione di Cleistocactus strausii
miglioramento dello sviluppo vegetativo e radicale
aumento dell’altezza delle piante
incremento di nuovi polloni
aumento del diametro delle piante
maggior numero di peli radicali
#ricerca #cactus #colonnari #cleistocactus
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