Dictionary > Cactoidea

Cactoidea

Definition
noun
(plant taxonomy) The largest subfamily of the cactus family comprised of the tribes: Browningieae, Cacteae, Calymmantheae, Cereeae, Hylocereeae, Notocacteae, Pachycereeae, Rhipsalideae, and Trichocereeae
Supplement
The cactus family, Cactaceae, is comprised of thousands of species characterized by having thick, fleshy stems. They are often found thriving in hot, arid habitats. They are able to survive in these places due to their morphological and physiological adaptations in conserving water. The family Cactaceae includes the following subfamilies: Cactoideae, Maihuenioideae, Opuntioideae, and Pereskioideae.
Cactoidea is the largest subfamily of the Cactaceae. Members of this subfamily have differing habit. Some of them are tree-like; others are epiphytic. Others still are shrubby, caespitose, or climbing. They normally have no leaves. Most of them have a stem that is ribbed or tuberculate but not segmented. Their growth range also varies, i.e. from 1 cm to 20 m in height. Glochids are also absent. Spines are typically present. Their flowers are sessile and may range from 1 to 30 cm in diameter. The flower colours vary, i.e. white, yellow, orange, purple, red, pink, brown, but no blue. Their fruits are often similar to berries.
This subfamily is comprised of nine tribes: (1) Browningieae, (2) Cacteae, (3) Calymmantheae, (4) Cereeae, (5) Hylocereeae, (6) Notocacteae, (7) Pachycereeae, (8) Rhipsalideae, and (9) Trichocereeae
Scientific classification:

  • Kingdom: Plantae
  • Order: Caryophyllales
  • Family: Cactaceae
  • Subfamily: Cactoideae

See also:

  • cactus
  • Cacteae


    You will also like...

    Oligodendrocyte and Schwann cell
    The Central Nervous System

    Myelin sheath is essential for a faster conductivity of signals. Know more about this feature of some neurons in the Cen..

    Evolution of Life - Ancient Earth
    Evolution of Life – Ancient Earth

    Autotrophs flourished, absorbing carbon and light. Soon after, primitive life forms that could assimilate oxygen thrived..

    IQ, Creativity and Learning
    IQ, Creativity and Learning

    Human intelligence provided the means to utilize abstract ideas and implement reasoning. This tutorial takes a further l..

    Thermographic image of face and neck
    Regulation of Organic Metabolism, Growth and Energy Balance

    The human body is capable of regulating growth and energy balance through various feedback mechanisms. Get to know the e..

    Lentic community
    Freshwater Communities & Lentic Waters

    Lentic or still water communities can vary greatly in appearance -- from a small temporary puddle to a large lake. The s..

    Principles of Hormonal Control Systems
    Principles of Hormonal Control Systems

    Hormones are essential in the regulation of the activity of the various biological systems of the human body. The ineffi..