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Published In: Species Plantarum 2: 659. 1753. (1 May 1753) (Sp. Pl.) Name publication detailView in BotanicusView in Biodiversity Heritage Library

Project Name Data (Last Modified On 8/11/2017)
Acceptance : Accepted
Project Data     (Last Modified On 7/9/2009)
Status: Introduced


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1. Sisymbrium altissimum L. (tumble mustard, Jim Hill mustard)

Pl. 328 a–c; Map 1391

Stems (20–)40–120(–160) cm long, usually hairy near the base, usually glabrous in the apical half. Leaves 2–40 cm long, petiolate, lanceolate to oblanceolate in outline, pinnately lobed or divided into 7–17 lobes, these entire to lobed, those of the lowermost leaves more numerous and lanceolate, hairy, those of the uppermost leaves fewer and linear, glabrous. Sepals 4–6 mm long. Petals (5–)6–8(–10) mm long. Style 0.5–2.0 mm long at fruiting. Fruits (5–)6–9(–12) cm long, spreading to loosely ascending at maturity, not appressed to the inflorescence axis, the stalk relatively stout, about as wide as the fruit. Seeds 90–120 per fruit, 0.8–1.0 mm long. 2n=14. May–August.

Introduced, widely scattered in Missouri (native of Europe, Asia; introduced widely in North America). Banks of streams and rivers; also fallow fields, pastures, railroads, roadsides, and open, disturbed areas.



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