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Cereus are shrubby or treelike, often attaining great heights (C. hexagonus, C. lamprospermus, C. trigonodendron up to 15 metres or 49 feet). Most stems are angled or distinctly ribbed, ribs 3–14 centimetres (1 + 1 ⁄ 4 – 5 + 1 ⁄ 2 inches) long, usually well developed and have large areoles, usually bearing spines.
The plants that bear such flowers can be tall, columnar, and sometimes extremely large and tree-like, but more frequently are thin-stemmed climbers. While some night-blooming cereus are grown indoors in homes or greenhouses in colder climates, most plants are too large or ungainly for this treatment and are only found outdoors in tropical areas.
Use these tips to care for mums indoors as dormant plants or as houseplants.
A height of 20–30 cm is normal since this cactus is recumbent. The cactus features 10 to 12 ribs, and it has 4 to 6 strong, flattened, dagger-like central spines that are grayish in color. The cactus features 10 to 12 ribs, and it has 4 to 6 strong, flattened, dagger-like central spines that are grayish in color.
Poinsettias aren't the only plant bringing vibrant blooms to your holiday decor. The Christmas cactus is another beloved houseplant that puts on a colorful show from November through January.
The genus Cereus was first genus for such cacti and one of the oldest cactus genera. Its circumscription varies depending on the authority. According to Cactiguide, the word cereus was commonly and freely used to describe any tree-like cacti, although this general use of the word is regarded as misleading, and the word ceroid or ceriform is ...
C. forbesii is a columnar, branching, colony-forming cactus which can grow up to 3 m (9 ft 10 in) in height, with a mature circumference of around 15 cm (5.9 in); however, due to weather, natural breakage, self-propagation and other growth-limiting factors, it is more frequently observed at a height of about 2 m (6 ft 7 in). Larger specimens ...