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Dicotyledons
The dicotyledons, also known as dicots (or, more rarely, dicotyls), are one of the two groups into which all the flowering plants (angiosperms) were formerly divided. The name refers to one of the typical characteristics of the group: namely, that the seed has two embryonic leaves or cotyledons. There are around 200,000 species within this group. The other group of flowering plants were called monocotyledons (or monocots), typically each having one cotyledon. Historically, these two groups formed the two divisions of the flowering plants. Largely from the 1990s onwards, molecular phylogenetic research confirmed what had already been suspected: that dicotyledons are not a group made up of all the descendants of a common ancestor (i.e., they are not a monophyletic group). Rather, a number of lineages, such as the magnoliids and groups now collectively known as the basal angiosperms, diverged earlier than the monocots did; in other words, monocots evolved from within the dic ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lamium Album
''Lamium album'', commonly called white nettle or white dead-nettle, is a flowering plant in the family Lamiaceae. It is native throughout Europe and Asia, growing in a variety of habitats from open grassland to woodland, generally on moist, fertile soils. Description ''L. album'' is an herbaceous perennial plant growing to tall, with green, four-angled stems. The leaves are long and broad, triangular with a rounded base, softly hairy, and with a serrated margin and a petiole up to long; like many other members of the Lamiaceae, they appear superficially similar to those of the stinging nettle (''Urtica dioica'') but do not sting, hence the common name "dead-nettle". The flowers are white, produced in whorls ('verticillasters') on the upper part of the stem, the individual flowers long. The flowers are visited by many types of insects, but mostly by long-tongued insects, like bees. Distribution ''L. album'' is native to Eurasia, from Ireland in the West to Japan in the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
