Rubus occidentalis L.
Family: Rosaceae
Black Raspberry
[Rubus idaeus var. americanus ,  more]
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Paul Rothrock  

Similar species: Page is under construction. Please see link below for general information on the genus Rubus.

Flowering: early May to late June

Habitat and ecology: Very common along roadsides, edges of woods, fencerows, bluffs, and disturbed woodlands.

Occurence in the Chicago region: native

Etymology: Rubus is the Latin name for bramble and also means red. Occidentalis means "from the western hemisphere."

Author: The Morton Arboretum

Stems erect or ascending, or sometimes arching and rooting at the tip, not glandular, strongly glaucous at least the first year, sparsely beset with stout, straight or hooked prickles with expanded base, as are also the petioles and especially the pedicels; lfls mostly 3, or 5 on the primocanes, the intermediate pair then adjacent to the lower; uppermost lvs of the floricane often simple; terminal lfl broadly ovate, rounded or subcordate at base, sharply, deeply and irregularly serrate; lower lfls similar but smaller and narrower; all lfls thinly gray-tomentose beneath; fls 3-7 in a dense, umbelliform cyme, often also 1 or 2 from the upper axils; pet white, shorter than the sep, narrowly obovate, at first erect, soon deciduous; fr purple-black (yellowish), with narrow belts of white tomentum between the drupelets, 1 cm thick, separating as a unit from the persistent receptacle; 2n=14. Dry or moist woods, fields, and thickets; Que. to N.D. and e. Colo., s. to Ga. and Ark. May, June. Also cult. in many cultivars. Hybridizes with no. 7 [Rubus idaeus L.].

Gleason, Henry A. & Cronquist, Arthur J. 1991. Manual of vascular plants of northeastern United States and adjacent Canada. lxxv + 910 pp.

©The New York Botanical Garden. All rights reserved. Used by permission.
From Flora of Indiana (1940) by Charles C. Deam
This species is a native of every county of the state, being infrequent to frequent throughout. It is found in almost all kinds of habitats but prefers moist situations. I have [collected the] yellow-fruited form [forma pallidus] from only Lagrange and Owen Counties; I saw a clump in the northeastern part of Steuben County but was not able to collect it. I have [collected the] yellow-fruited form [forma pallidus] from only Lagrange and Owen Counties; I saw a clump in the northeastern part of Steuben County but was not able to collect it.
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Jane Bozsik  
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Eric Nielsen  
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