Transformational Gardening


Black Raspberry (Blackcap) (Rubus occidentalis): Images

Date Location Notes Images
July 16, 2009 Southeastern, New Hampshire Difficult to tell Rubus species apart. At first I thought it might be the Allegheny Blackberry (Rubus allegheniensis) or the Upland Blackberry (Rubus pergratus), but the Black Raspberry has some key differences:

  • The Black Raspberry fruit itself is more round (similar width and height) with a deep, hollow space in the top when removed from the plant. The Blackberries are taller than they are wide. In this case, the fruit looks more round like a Black Raspberry.
  • The stems of the Black Raspberry plant often have a blue-gray tinge to them. While the stems of the Allegheny Blackberry have a redish-brown tinge.
  • The underside of the leaves of the Black Raspberry have a soft gray or white fuzz.
  • The fruit of the Black Raspberry often ripens after different rates so that one often sees unripe white or red fruit along with some ripe black fruit.
Date Location Notes Images
June 25, 2012 Southeastern, New Hampshire Key:
  • Plants armed with prickles or bristles. Principle leaves compound.
  • Stems woody and differentiated into primocanes and floricanes.
  • Receptacle of fruit remaining behind on pedicel.
  • Leaflets densely tomentose on back surface (white to gray hairs).
  • Fruit purple-black. Primocanes very glaucous.