cactus

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cactus

A regionally popular short form for
(1) Peyote, or
(2) Mescaline.
Segen's Medical Dictionary. © 2012 Farlex, Inc. All rights reserved.

cactus

the common name for members of the family Cactaceae, all of which, with one possible exception (Rhipsalis), are native to the continent of America. Most cacti are XEROPHYTES and succulents, found in deserts which have infrequent but heavy rainfall; cacti are absent from deserts with little or no rainfall. Epiphylum species and their relatives are found in rain forests and are chiefly EPIPHYTES. Cacti are distinguished from other succulents by having an areole, a pin-cushion type of structure from which wool, spines, new shoots and flowers develop. Other succulents do not possess an areole even though spines may be present.
Collins Dictionary of Biology, 3rd ed. © W. G. Hale, V. A. Saunders, J. P. Margham 2005
References in periodicals archive ?
Caralluma fimbriata (Roxbury) belongs to family Asclepiadaceae (cactus family) and has similar botanical description as that of Carallumaacendens.
Rose, The Cactaceae, Descriptions and Illustrations of Plants of the Cactus Family, Dover Publications, Washington, DC, USA, 2009.
The surfaces were covered with distinctive button-like circles that hammer home the cactus family resemblance; they brought to mind the slightly bulbous forms of the painter Philip Guston and the aesthetic of Frida Kahlo's blue house garden in Mexico.
A member of the cactus family, the spiky puya 1.5 metres tall, is expected to burst into colour by the weekend.
The giant cactus, which can reach up to 60 feet, is everywhere, as is the pitahaya, a fruit from the cactus family that fed local tribes for hundreds of years.
Most cactus are remarkably resilient--surprising, because around Tucson you're always hearing talk of the "fragile desert." Dave Palzkill, a volunteer digger and professional horticulturist, explains that most succulents (which include the cactus family) can produce new roots from stem tissue if the plant needs them.