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The following terms are used to describe leaf morphology in the description and taxonomy of plants. Leaves may be simple (that is, the leaf blade or 'lamina' is undivided) or compound (that is, the leaf blade is divided into two or more leaflets). [1] The edge of the leaf may be regular or irregular, and may be smooth or have hair, bristles, or ...
oleander-leaf podocarp Podocarpaceae (podocarp family) Sciadopityaceae: koyamaki family; Sciadopitys: sciadopitys trees; Sciadopitys verticillata: koyamaki; umbrella-pine Sciadopityaceae (umbrella pine family) Taxaceae: yew family; Taxus: yew trees; Taxus baccata: European yew Taxaceae (yew family) Taxus brevifolia: Pacific yew Taxaceae (yew ...
Biennial plants usually form a basal rosette of leaves in the first year and then flower and fruit in the second year. bifid Forked; cut in two for about half its length. Compare trifid. bifoliate (of a compound leaf) Having precisely two leaflet s, usually in a symmetrical pair, e.g. a leaf of Colophospermum mopane.
Dendrology (Ancient Greek: δένδρον, dendron, "tree"; and Ancient Greek: -λογία, -logia, science of or study of) or xylology (Ancient Greek: ξύλον, ksulon, "wood") is the science and study of woody plants (trees, shrubs, and lianas), specifically, their taxonomic classifications. [1]
[1] [2] Small shrubs, less than 2 m (6.6 ft) tall are sometimes termed as subshrubs. Many botanical groups have species that are shrubs, and others that are trees and herbaceous plants instead. Some define a shrub as less than 6 m (20 ft) and a tree as over 6 m. Others use 10 m (33 ft) as the cutoff point for classification. [2]
Pseudautoicous – dwarf male plants growing on living leaves of female plants. Pseudomonoicous – Pseudoperianth – an involucre that resembles a perianth, but is made of thallus tissue, and usually forms after the sporophyte develops. Rhizautoicous – male inflorescence attached to the female stem by rhizoids.
The following is a list of widely known trees and shrubs found in Texas. [3] [4] [5] Taxonomic families for the following trees and shrubs are listed in alphabetical order by family. [6] Ecoregions are denoted by similar vegetation and environmental resources.
The male flowers form long drooping catkins that are yellow-green in color. The female flowers have very small spikes in leaf axils that appear with the leaves. [8] Form: Though usually found as a shrub, given enough moisture it can become a medium-sized tree that reaches up to 18 m (60 ft) tall with a spreading round crown. [10]