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Commelina benghalensis

Commelina benghalensis L.  
Family: Commelinaceae
Jio
[Commelina benghalensis subsp. hirsuta (C.B. Clarke) J.K. Morton, moreCommelina benghalensis var. hirsuta C.B. Clarke, Commelina canescens Vahl, Commelina cucullata L., Commelina cufodontii Chiov., Commelina kilimandscharica K. Schum., Commelina phaeochaeta Chiov., Commelina procurrens Schltdl., Commelina pyrrhoblepharis Hassk., Commelina pyrrhoblepharis var. glabra Pic. Serm., Commelina pyrrhoblepharis var. pyrrhoblepharis , Commelina radiciflora R. Br. ex C.B. Clarke, Commelina rhizocarpa Afzel. ex C.B. Clarke, Commelina senegalensis Ten., Commelina turbinata Vahl, Commelina uncata C.B. Clarke]
Commelina benghalensis image
  • FNA
  • Resources
Robert B. Faden in Flora of North America (vol. 22)
Herbs, annual. Roots thin, rhizomes short, subterranean, bearing cleistogamous flowers produced from base of plant. Stems ascending to decumbent or occasionally scrambling. Leaves: leaf sheaths, not auriculate, often with red hairs at summit; blade ovate to lanceolate-elliptic, (1--)2--9(--11) ´ 1--3(--4.5) cm, apex rounded, obtuse or acute, pubescent. Inflorescences: distal cyme often exserted and 1-flowered, sometimes vestigial; spathes often clustered, subsessile (peduncles 1--3.5 mm), funnelform, 0.5--1.5(--2) cm, margins connate basally, pubescent. Flowers: chasmogamous flowers bisexual and staminate, subterranean cleistogamous flowers bisexual; petals of staminate flowers all blue (rarely lilac), proximal smaller; lateral stamen filaments not winged; staminodes 2--3; antherodes yellow, cruciform; pollen white; medial stamen pollen yellow. Capsules 3-locular, 2-valved, 4--6 mm. Seeds 5, brown or blackish, seeds of adaxial locule 1.7--2.5 mm, shallowly reticulate, farinose. 2n = 22.

Flowering spring--fall. Citrus plantations, fields, yards, and other cultivated and disturbed sites; introduced; Calif., Fla., Ga., La.; neotropics; native, paleotropics.

Commelina benghalensis was first recognized and collected in California in 1980. The California plants are approximately hexaploid and represent a separate and much later introduction than the southeastern plants. The species is federally listed as an Obnoxious Weed.

Commelina benghalensis
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University of Florida Herbarium
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University of Florida Herbarium
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University of Florida Herbarium
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University of Florida Herbarium
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University of Florida Herbarium
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University of Florida Herbarium
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University of Florida Herbarium
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University of Florida Herbarium
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University of Florida Herbarium
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University of Florida Herbarium
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University of Florida Herbarium
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University of Florida Herbarium
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University of Florida Herbarium
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University of Florida Herbarium
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University of Florida Herbarium
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University of Florida Herbarium
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University of Florida Herbarium
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University of Florida Herbarium
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University of Florida Herbarium
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