Similar species: Page is under construction. Please see link below for general information on the genus Rubus.
Flowering: mid May to early August
Habitat and ecology: Locally common in acid soils, boggy areas, dry black oak savannas, thickets along edges of bogs or dune marshes, and sterile areas on marsh borders.
Occurence in the Chicago region: native
Etymology: Rubus is the Latin name for bramble and also means red. Hispidus means bristly-hairy.
Author: The Morton Arboretum
From Flora of Indiana (1940) by Charles C. Deam
Infrequent to frequent throughout the lake area in acid soils, usually in tamarack bogs or in moist, sandy soil in black oak woods, where it is usually associated with wintergreen, lowbush blueberry and black chokeberry. South of the lake area it is very local, being found principally in the hard, white, minimacid, clay soil of the Illinoian drift, especially in Jefferson and Jennings Counties.
Primocanes trailing to low-arched, usually rooting at the tip, armed with slender, weak, straight or barely curved, slightly reflexed prickles commonly 2-4 mm, these usually with small base, sometimes with an expanded base to 5 mm, numerous to almost wanting; shorter glandular hairs usually also present; primocane lvs 3- or 5-foliolate, firm and usually shining, the terminal lfl mostly short- petiolate, oblong-ovate to obovate, broadest above the middle; infl distinctly racemiform, commonly with several or many fls; fr sour. In a wide range of habitats, even in peat-bogs. Abundant nearly throughout our range; Que. and N.S. to Wis., s. to N.C. and Mo. June-Aug. (R. ambigens; R. compos; R. cubitans; R. davisiorum; R. distinctus; R. eflagellaris; R. emeritus; R. fassettii; R. furtivus; R. huttonii; R. kalamazoensis; R. missouricus; R. multiformis; R. novanglicus; R. paganus; R. paludivagus; R. parlinii; R. plus; R. porteri; R. rosendahlii; R. rowleei; R. schoolcrafiianus; R. spiculosus; R. tardatus; R. vagulus; R. vegrandis; R. vigil; R. zaplutus)
Gleason, Henry A. & Cronquist, Arthur J. 1991. Manual of vascular plants of northeastern United States and adjacent Canada. lxxv + 910 pp.