| Share
 

orchid

Introduction

orchid, popular name for members of the Orchidaceae, a family of perennial herbs widely distributed in both hemispheres. The unusually large family (of some 450 genera and an estimated 10,000 to 17,500 species) includes terrestrial, epiphytic (see epiphyte), and saprophytic (subsisting on decomposing material) genera. Although the latter may sometimes lack chlorophyll, none is actually parasitic. Orchids grow most abundantly in tropical and subtropical forests, where they are largely epiphytic; the temperate genera thrive in all kinds of shaded habitats except excessively dry or cold ones. Most temperate orchids and all those of Arctic are terrestrial.

The Columbia Electronic Encyclopedia, 6th ed. Copyright © 2012, Columbia University Press. All rights reserved.

See more Encyclopedia articles on: Plants


Premium Partner Content
HighBeam Research
Documents Images and Maps Reference
(from Newspapers, Magazines, Journals, Newswires, Transcripts and Books)

Research our extensive archive of more than 80 million articles from 6,500 publications.

Additional search results provided by HighBeam Research, LLC. © Copyright 2005. All rights reserved.

24 X 7

Private Tutor

Click Here for Details
24 x 7 Tutor Availability
Unlimited Online Tutoring
1-on-1 Tutoring