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Rubus ursinus is a wide, mounding shrub or vine, growing to 0.61–1.52 metres (2–5 feet) high, and more than 1.8 m (6 ft) wide. [3] The prickly branches can take root if they touch soil, thus enabling the plant to spread vegetatively and form larger clonal colonies. The leaves usually have 3 leaflets but sometimes 5 or only 1, and are deciduous.
The fruit in botanical terminology is not a berry, but an aggregate fruit of numerous drupelets, 1.2–2 cm diameter, ripening black or dark purple. Both first- and second-year shoots are spiny, with short, stout, curved, sharp spines. Mature plants form a tangle of dense arching stems, the branches rooting from the node tip when they reach the ...
Rubus laciniatus is a deciduous, bramble-forming shrub growing to 3 meters (10 feet) tall, with prickly shoots. The leaves are palmately compound, with five leaflets, each divided into deeply toothed subleaflets with jagged, thorny tips. The flowers have pink or white petals.
The fruits are compound drupes which change from bright red to black at maturity. Each section (drupelet) of a blackberry contains a single seed. Second year plants die after bearing fruits, but regrow from the underground portion of the plant. There are many species of blackberries, which are edible and differ by size. [6]
The characteristics of Rubus allegheniensis can be highly variable. [8] It is an erect bramble, typically 1.5 metres (5 feet) but occasionally rarely over 2.4 m (8 ft) high, with single shrubs approaching 2.4 m or more in breadth, although it usually forms dense thickets of many plants.
The round-shaped fruit is a 12-to-15-millimetre (0.47 to 0.59 in) diameter aggregation of drupelets; it is edible, and has a high content of anthocyanins and ellagic acid. [ 7 ] [ 8 ] Long stems also called canes grow up to 1.8 metres (5.9 ft) in length, usually forming an arch shape, but sometimes upright.
The Latin specific epithet nigra means "black", and refers to the deeply dark colour of the berries. [11] The English term for the tree is not believed to come from the word "old", but from the Anglo Saxon æld , meaning fire, because the hollow stems of the branches were used as bellows to blow air into a fire.
Aronia melanocarpa, called the black chokeberry, is a species of shrubs in the rose family native to eastern North America, ranging from Canada to the central United States, from Newfoundland west to Ontario and Minnesota, south as far as Arkansas, Alabama, and Georgia. [1] This plant has been introduced and is cultivated in Europe.