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Published In: Boston Journal of Natural History 5(2): 224–225. 1845. (Boston J. Nat. Hist.) 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: Native

 

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5. Cuscuta cuspidata Engelm. (cusp dodder)

Pl. 364 e; Map 1587

Stems relatively slender, usually less than 1 mm in diameter. Flowers 2.5–3.5 mm long, with smooth to slightly irregular surfaces, subtended by 2–4 loosely overlapping, ovate bracts with pointed, erect tips, in loose, paniculate clusters on short side branches, the pedicels usually shorter than the flowers. Calyces 1/2 to 2/3 as long as the corolla tube, not hidden by the bracts, deeply 5-lobed into separate or nearly distinct sepals, the sepals ovate to nearly orbicular, with a bluntly pointed tip, strongly overlapping basally, but not angled. Corollas narrowed to 5 sharply or rarely bluntly pointed lobes, these spreading to reflexed, with straight tips. Infrastaminal scales not quite reaching filament bases, narrowly oval, densely fringed along the margins. Fruits globose or nearly so, thickened at the tip. Seeds 1.4–1.5 mm long. July–October.

Scattered in the southern half of the state (Indiana and Louisiana west to Utah). Mostly on the banks of rivers, streams, and ponds, but also in wet prairies; sometimes a weed in fields. Parasitic on a wide variety of herbaceous species (including Ambrosia, Aster, Erigeron, Impatiens, Iva, Lycopus, and Vernonia), mostly in the Asteraceae.

 
 


 

 
 
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