Close-up of a specimen of black mustard (Brassica nigra), ca.1920 (CHS-5478)

Description:

Description: English: Close-up of a specimen of black mustard (Brassica nigra), ca.1920 Photograph of a close-up of a specimen of black mustard (Brassica nigra), ca.1920. On a dark background.; "Black mustard (Brassica nigra) grows from 2 to 6 feet high. The leaves and lower portion of the stems are covered with bristly hairs. The small, bright-yellow flowers are produced from June to September in racemes at the ends of the stems, followed by erect pods crowded against them in dense clusters. These pods when ripe contain numerous small and roundish, blackish or reddish brown seeds. Black mustard was introduced from Europe and is a common weed in cultivated ground and waste places almost throughout the United States, being especially troublesome in grain fields and pastures. It is cultivated in California." -- unknown author. Call number: CHS-5478 Filename: CHS-5478 Subject (file heading): Botany -- General Part of collection: California Historical Society Collection, 1860-1960 Type: images Part of subcollection: Title Insurance and Trust, and C.C. Pierce Photography Collection, 1860-1960 Repository name: USC Libraries Special Collections Accession number: 5478 Microfiche number: 1-82-195 Archival file: chs_Volume99/CHS-5478.tiff Repository address: Doheny Memorial Library, Los Angeles, CA 90089-0189 Geographic subject (country): USA Format (aacr2): 2 photographs : glass plate negative, transparency, b&w ; 26 x 21 cm. Rights: Digitally reproduced by the USC Digital Library; From the California Historical Society Collection at the University of Southern California Project: USC Repository email: specol@usc.edu Contributing entity: California Historical Society Date created: circa 1920 Publisher (of the digital version): University of Southern California. Libraries Format (aat): negatives (photographic); photographs Legacy record ID: chs-m17392; USC-1-1-1-14192; USC-1-1-1-14195 Access conditions: Send requests to address or e-mail given. Phone (213) 821-2366; fax (213) 740-2343. Coverage date: circa 1920 Subject (lcsh): Botany. Date: circa 1920 date QS:P,+1920-00-00T00:00:00Z/9,P1480,Q5727902 (date created). Source: http://digitallibrary.usc.edu/cdm/ref/collection/p15799coll65/id/17389. Author: Unknown authorUnknown author.