Perennials -
Verbena
Verbena (verbenas
or vervains) is a genus of annual and perennial herbaceous
or semi-woody flowering plants with about 250 species in the
family Verbenaceae. The majority of the species are native to the
New World from Canada south to southern Chile, but some are also
native in the Old World, mainly in Europe including Common Vervain
(V. officinalis) and V. supina. Several species in this genus are
of natural hybrid origin. The leaves are usually opposite,
simple, and in many species hairy, often densely so. The flowers
are small, with five petals, and borne in dense spikes. They may
be multi-colored, red, rose, peach, pink, purple, lavender, or
blue, usually with a white eye. V. Bonariensis (Purple Top) is a
pretty species forming basal rosettes of serrated, wrinkly, dark
green leaves. In the summer and autumn, thin stems topped with
clusters of tiny, bright purplish-pink flowers grow. This species
can reach a height of up to 5 feet.
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