Rubus argutus Link, Rosaceae

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Common name: Southern blackberry.

Voucher: Kostadinov 151, (URV)

Brief description: A shrub with erect stems to 2 m, with spreading or slightly reflexed prickles on the stems, petioles and midveins. Leaves are compound, alternate; leaflets are oblong to oblong-oblanceolate, entire, pinnately veined, softly pubescent beneath, margins sharply or coarsely and irregularly serrate-toothed. Flowers are perfect, white, in short, loose, open racemiform cymes. Flowers appear on the stem in the second year of growth (floricanes); the first-year stem is termed primocane. Fruits are a cluster of drupelets. 

Campus data: Frequent everywhere in the wild, not cultivated.