thimbleberry Rosaceae Rubus
|Leaf: Simple, alternate, deciduous, large (3 to 10 inches in diameter) and palmately lobed (3 to 5 lobes); margins serrate, dark green and velvety on both surfaces (glandular hairs).
Flower: Perfect, complete; large (about 1 inch in diameter), broad white petals with a texture like crinkled tissue paper, occur terminally, either singly or in small clusters, appearing in early summer.
Fruit: Red raspberries (aggregate of drupelets) in the shape of a flattened dome, sparse, long hairs; edible, but taste varies. Pull free from the torus (central core), leaving a thimble-like appearance.
Twig: New stems are green and glandular; older stems have bark that is thin, tan, and papery. Unarmed.
Form: An erect, spindly shrub that commonly grows to 6 feet tall, often forms thickets.
Looks like: purple flowering raspberry
| Additional Range Information:
Rubus parviflorus is native to North America.
Range may be expanded by planting.
See states reporting thimbleberry.
| External Links:
USDA Plants Database
|© Copyright 2016, Virginia Tech|
Dept. of Forest Resources
and Environmental Conservation,
all rights reserved.
Photos and text by: John Seiler,
Edward Jensen, Alex Niemiera,
and John Peterson