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VERBENA . The genus Verbena (vervain) in See also:botany gives its name to the natural See also:order (Verbenaceae) of which it is a member . The See also:species are herbaceous or somewhat shrubby, erect or procumbent, with opposite or whorled leaves, generally deeply cut . The sessile See also:flowers are aggregated into See also:close spikes . Each See also:flower has a tubular, ribbed calyx, a more or less irregular tubular two-lipped corolla, with four (didynamous) stamens springing from the interior of the corolla-See also:tube . The anthers are two-celled, with or without a gland-like appendage at the See also:apex . The ovary is entire or four-lobed, and always four-celled, with a single ovule in each See also:cell; the See also:style is unequally two-lobed at the apex . The See also:fruit consists of four hard nutlets within the persistent calyx . There are about eighty species known, mostly natives of. tropical and subtropical See also:America, a very few species occur-See also:ring also in the Old See also:World . The vervein, or vervain, V. officinalis, native of central and See also:north See also:Asia, See also:Europe and North See also:Africa, and See also:common on dry See also:waste ground in the See also:south of See also:England (rarer in the north), was the See also:object of much superstitious veneration on the See also:part of our See also:pagan ancestors, who attributed marvellous properties to it, provided it were gathered in a particular manner and with much complex ceremonial . The plant is now but lightly esteemed, and its medicinal virtues are wholly discredited . The See also:garden verbenas are derivatives from various South See also:American species, such as V. teucrioides, a native of See also:southern See also:Brazil, and V. chamaedrifolia from See also:Argentina and southern Brazil .
The range of See also:colours extends from pure See also: |
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