Buffalo-bur ( Solanum rostratum -15seeds

Buffalo-bur - Solanum rostratum (S. cornutum) - rare ornamental annual .- 

Other names: Spiny Nightshade, Colorado Bur, Kansas Thistle, Mexican Thistle, Texas thistle

It is very ornamental medium size (about 0,3-0,6m = 1-2ft tall) annual herb with numerous bright golden-yellow flowers and blackish inedible berries completely covered by spiny calyx. It has different types of stamens in flowers (heteranthery). It is native almost to whole USA, part of Mexico and is introduced to Canada. This plant has also spread to warmer parts of Eurasia, Australia, and South Africa, where it is regarded as a troublesome weed. It likes well drained soils and much of sunlight. It is not very easy to propagation. Seeds need to be cold stratified by a few months or sown in autumn in cool cellar (or eventually outside). They germinates only in a dark so they should be sown about 1-1,5cm (0,4-0,6inch) deep. Package 15 black fresh seeds