adventitious plant
11lower vascular plant — ▪ biology Introduction formerly pteridophyte, also called vascular cryptogam, any of the spore bearing vascular plants, including the ferns, club mosses, spike mosses, quillworts, horsetails, and whisk ferns. Once considered of the… …
12Adventitiousness — Adventitious, in botany, refers to structures that develop in an unusual place, and in medicine, it refers to conditions acquired after birth. This article discusses adventitious roots, buds and shoots, which are very common in vascular… …
13Ericales — ▪ plant order Introduction rhododendron order of flowering plants, containing 25 families, 346 genera, and more than 11,000 species. The relationships of the order are unclear. It belongs to neither of the two major asterid groups… …
14cycadophyte — ▪ plant Introduction any member of a diverse collection of mostly extinct primitive gymnospermous plants. They probably had their origins among the progymnosperms of the Devonian Period (416 to 359 million years ago), possibly among a… …
15lycophyte — ▪ plant division Introduction (division Lycopodiophyta or Lycophyta), any spore bearing vascular plant that is one of the club mosses (club moss) and their allies, living and fossil. Present day lycophytes are grouped in 6 genera (some… …
16Dicksoniaceae — ▪ plant family the tree fern family, containing about 3 genera and some 30 species, in the division Pteridophyta (the lower vascular plants (plant)). The family has a long and diverse fossil record extending back to the Triassic Period (250 …
17adventitiously — adventitious ► ADJECTIVE 1) happening according to chance. 2) Botany (of roots) growing directly from the stem or other upper part of a plant. DERIVATIVES adventitiously adverb. ORIGIN Latin adventicius coming to us from abroad …
18angiosperm — /an jee euh sperrm /, n. Bot. a plant having its seeds enclosed in an ovary; a flowering plant. Cf. gymnosperm. [ANGIO + SPERM] * * * ▪ plant Introduction any member of the more than 300,000 species of flowering plants (division Anthophyta) …
19Root — This article is about the part of a plant. For other uses, see Root (disambiguation). Primary and secondary roots in a cotton plant In vascular plants, the root is the organ of a plant that typically lies below the surface of the soil. This is… …
20tree — treelike, adj. /tree/, n., v., treed, treeing. n. 1. a plant having a permanently woody main stem or trunk, ordinarily growing to a considerable height, and usually developing branches at some distance from the ground. 2. any of various shrubs,… …
