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Pectis prostrata Cav.  
Family: Asteraceae
Spreading Chinchweed, more...spreading cinchweed
Pectis prostrata image
Joe MDO
  • FNA
  • Resources
David J. Keil in Flora of North America (vol. 21)
Annuals, 1-30 cm (across); herbage not scented. Stems prostrate to ascending (often mat-forming, densely leafy, especially distally), puberulent (in lines or throughout). Leaves linear to narrowly oblanceolate, 10-40 × 1.5-7 mm, margins with 4-12 pairs of setae 1-3 mm, faces glabrous (abaxial densely dotted with round oil-glands 0.1-0.3 mm). Heads borne singly or in congested, (leafy) cymiform arrays. Peduncles 1-2 mm. Involucres campanulate, cylindric, or ellipsoid. Phyllaries coherent (falling together), oblong to obovate, 5-8 × 1-3 mm (often dotted in submarginal rows and sometimes along midribs with elliptic oil-glands 0.1-0.3 mm). Ray florets 5; corollas 2.5-3.5 mm (scarcely surpassing phyllaries). Disc florets 3-17; corollas 1.8-2.5 mm (2-lipped). Cypselae 2.5-4.5 mm, strigillose; pappi of 2 (ray) or 5 (disc) lanceolate scales 1.5-2.5 mm. 2n = 24. Flowering Jul-Nov. Open sites in deserts, grasslands, oak-pine-juniper woodlands, roadsides; 0-2000 m; Ariz., Fla., La., N.Mex., Tex.; Mexico; West Indies; Central America. The development of roads and highways has created ideal habitats for Pectis prostrata. Its range appears to be expanding along the coasts of Florida; it was discovered in Louisiana relatively recently. It can be expected to spread along the Gulf Coast and perhaps northward along the Atlantic Coast as well. Autogamy has apparently assisted P. prostrata to spread rapidly as suitable new habitats have become available.

Pectis prostrata
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Pectis prostrata image
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Pectis prostrata image
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Pectis prostrata image
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Pectis prostrata image
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Pectis prostrata image
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Pectis prostrata image
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Pectis prostrata image
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Pectis prostrata image
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Pectis prostrata image
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Pectis prostrata image
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Pectis prostrata image
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Pectis prostrata image
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Pectis prostrata image
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Pectis prostrata image
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Pectis prostrata image
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Pectis prostrata image
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Pectis prostrata image
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Pectis prostrata image
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Pectis prostrata image
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Pectis prostrata image
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Pectis prostrata image
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Pectis prostrata image
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Pectis prostrata image
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Pectis prostrata image
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Pectis prostrata image
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Pectis prostrata image
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Pectis prostrata image
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Pectis prostrata image
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Pectis prostrata image
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Pectis prostrata image
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Pectis prostrata image
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Pectis prostrata image
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Pectis prostrata image
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Pectis prostrata image
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Pectis prostrata image
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Pectis prostrata image
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Pectis prostrata image
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Pectis prostrata image
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Pectis prostrata image
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Pectis prostrata image
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Pectis prostrata image
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Pectis prostrata image
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Pectis prostrata image
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Pectis prostrata image
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Pectis prostrata image
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Pectis prostrata image
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Pectis prostrata image
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Pectis prostrata image
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Pectis prostrata image
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Pectis prostrata image
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Pectis prostrata image
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Pectis prostrata image
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Pectis prostrata image
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Pectis prostrata image
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Pectis prostrata image
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Pectis prostrata image
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Pectis prostrata image
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Pectis prostrata image
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Pectis prostrata image
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Pectis prostrata image
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Pectis prostrata image
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Pectis prostrata image
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Pectis prostrata image
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Pectis prostrata image
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Pectis prostrata image
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Pectis prostrata image
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Pectis prostrata image
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Pectis prostrata image
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Pectis prostrata image
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Pectis prostrata image
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Pectis prostrata image
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Pectis prostrata image
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Pectis prostrata image
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Pectis prostrata image
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Pectis prostrata image
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Pectis prostrata image
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Pectis prostrata image
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Pectis prostrata image
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Pectis prostrata image
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Pectis prostrata image
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Pectis prostrata image
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Pectis prostrata image
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Pectis prostrata image
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Pectis prostrata image
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Pectis prostrata image
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Pectis prostrata image
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Pectis prostrata image
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Pectis prostrata image
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Pectis prostrata image
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Pectis prostrata image
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Pectis prostrata image
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Pectis prostrata image
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Pectis prostrata image
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Pectis prostrata image
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