Petrea

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Petrea

plant genus

Learn about this topic in these articles:

characteristics

In Verbenaceae
Outstanding among the 30 Petrea species, all tropical American, is a woody evergreen vine called purple wreath, or sandpaper vine (P. volubilis). It bears long, hanging clusters of violet-blue pansylike flowers and has oval leaves so rough as to be likened to sandpaper. The 220 species of the genus…
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