Plantae > Tracheophyta > Magnoliopsida > Rosales > Rosaceae > Rubus > Rubus alumnus

Rubus alumnus (oldfield blackberry)

Synonyms:

Wikipedia Abstract

Rubus alumnus, the oldfield blackberry, is a North American species of flowering plant in the rose family. It is native to eastern and central Canada (Ontario, Québec, Nova Scotia) and the eastern and central United States (from Maine south to North Carolina and west as far as Oklahoma, Kansas, and Minnesota). The genetics of Rubus is extremely complex, so that it is difficult to decide on which groups should be recognized as species. There are many rare species with limited ranges such as this. Further study is suggested to clarify the taxonomy.
View Wikipedia Record: Rubus alumnus

Attributes

Bloom Period [1]  Mid Spring
Drought Tolerance [1]  Medium
Fire Tolerance [1]  High
Frost Free Days [1]  4 months 20 days
Fruit/Seed Abundance [1]  High
Fruit/Seed Begin [1]  Spring
Fruit/Seed End [1]  Summer
Growth Form [1]  Thicket Forming
Growth Period [1]  Spring, Summer
Growth Rate [1]  Rapid
Leaf Type [2]  Deciduous
Lifespan [1]  Perennial
Propagation [1]  Bare Root, Container, Cutting, Seed, Sprig
Root Depth [1]  8 inches (20 cm)
Seed Spread Rate [1]  Slow
Seed Vigor [1]  Low
Seeds Per [1]  275000 / lb (606271 / kg)
Shape/Orientation [1]  Erect
Structure [2]  Shrub
Vegetative Spread Rate [1]  Moderate
Flower Color [1]  White
Foliage Color [1]  Green
Fruit Color [1]  Black
Flower Conspicuous [1]  Yes
Fruit Conspicuous [1]  Yes
Height [1]  4.92 feet (1.5 m)
Hardiness Zone Minimum [1]  USDA Zone: 4 Low Temperature: -30 F° (-34.4 C°) → -20 F° (-28.9 C°)
Light Preference [1]  Mixed Sun/Shade
Soil Acidity [1]  Moderate Acid
Soil Fertility [1]  Intermediate
Water Use [1]  Moderate
Screening - Summer [1]  Porous
Screening - Winter [1]  Porous

Protected Areas

Name IUCN Category Area acres Location Species Website Climate Land Use
Great Smoky Mountains National Park II 515454 North Carolina, Tennessee, United States
Southern Appalachian Biosphere Reserve 37548505 North Carolina, Tennessee, United States  

External References

USDA Plant Profile

NatureServe Explorer

Citations

Attributes / relations provided by
♦ 1USDA Plants Database, U. S. Department of Agriculture
♦ 2Kattge, J. et al. (2011b) TRY - a global database of plant traits Global Change Biology 17:2905-2935
Abstract provided by DBpedia licensed under a Creative Commons License
Species taxanomy provided by GBIF Secretariat (2022). GBIF Backbone Taxonomy. Checklist dataset https://doi.org/10.15468/39omei accessed via GBIF.org on 2023-06-13; License: CC BY 4.0