Northern Prairie Wildlife Research Center
Southern Wetland Flora
Field Office Guide to Plant Species
Rubus hispidus L.
- Family: Rose (Rosaceae)
- Flowering: May-June
- Field Marks: This blackberry has stems that trail on the ground. It differs from other trailing
blackberries by having flower stalks less than 1 inch long and petals only about 1/2 inch long.
- Habitat: Low woods, swamps, pocosins.
- Habit: Trailing shrub creeping along the ground.
- Stems: Slender, smooth or sometimes slightly hairy, bearing weak thorns.
- Leaves: Leaves alternate, compound, divided into three leaflets; leaflets obovate to broadly
elliptic, rounded at the tip, narrow or rounded at the base, singly or doubly toothed, shiny, smooth
on the upper surface, smooth or slightly hairy on the lower surface, up to 2 1/2 inches long, up
to 1 3/4 inches wide.
- Flowers: Few to several in terminal or axillary racemes or cymes; flowers up to 3/4 inch across,
on stalks less than 1 inch long.
- Sepals: 5, green, densely hairy, united below, up to 1/4 inch long.
- Petals: 5, white, free from each other, up to 1/2 inch long.
- Stamens: Numerous, attached to the calyx.
- Pistils: 20-40; ovaries superior.
- Fruits: A cluster of drupelets, up to 1/2 inch long.
- Notes: The fruits are sour.
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