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(Last Modified On 1/28/2013)
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(Last Modified On 1/28/2013)
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Habit
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herbs
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Distribution
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A small weed of beaches, open thickets, fields, roadsides, and wasteland; southern United States, Antilles, Central and South America; a rare sporadic ruderal in tropical Africa.
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Specimen
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CANAL ZONE: Gamboi, Bro. Heriberto 28, Standley 2846I; Monte Lirio, Maxon 686o; Obispo, Standley 3I775; Gatuin, Covell 296; Frijoles, Piper 5829; New Frijoles, Pittier 6836; Balboa, Bro. Celestine I0; Paraiso, Pittier 2529; Summit, Standley 30I33; Monkey Hill, Cowell 28. CHIRIQUI: Puerto Armuelles, Woodson & Schery 838. COLON: Cl6n, Macbride 6 Featherstone i, Piper 5892, Rose 22084.
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Note
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The glabrous anthocarps and inflorescences of B. erecta have made this species less widely dispersed as a ruderal than B. diffusa.
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Species
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BOERHAVIA ERECTA L.
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PlaceOfPublication
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Sp. PL. 3. 1753.
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Synonym
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Boerhavia elongata Salisb. Prodr. 56. 1796. Boerhaavia virgata HBK. Nov. Gen. 2:2 15. 1817. Boerhaavia discolor HBK. loc. cit. -1 8 17. Boerhaavia ato-maria Raf. Aut. Bot. 40. 1840. Valeriana latifolia Mart. & Gal. in Bull. Acad. Brux. 111:124. 1844. Boerhaavia paniculata ,3 subacuta Choisy, in DC. Prodr. 132:451. 1849. Boerhavia thornberi M. E. Jones, Contr. West. Bot. 12:72. 1908. Boerhaavia erecta thornberi (M. E. Jones) Standl. in Contr. U. S. Nat. Herb. 12:3 8 1. 1909.
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Description
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Annual herbs; stems erect or ascending, 2-8 dm. tall, rather slender, glabrous or essentially so. Leaves opposite or subopposite, often unequal at the nodes, petiolate; blade rather irregularly ovate-rhombic, obtuse to rounded, or infrequently acute, at the apex, broadly obtuse to rounded at the base, undulate or sinuate, 2-9 cm. long, 1-4 cm. broad, glabrous or essentially so, yellowish green above, paler and more or less conspicuously bracteate, glabrous or essentially so. Flowers in pedunculate 2- to 3-flowered dichasia, distinctly pedicellate, the perianth tube 1.0-1.5 mm. long, about 0.5 mm. broad, herbaceous, glabrous, the perianth limb campanulate, about 0.5-0.7 mm. long, white or pink; stamens 2-3, slightly exserted. Anthocarps obpyramidal, truncate, glabrous, 3-4 mm. long, 1.0-1.5 mm. broad, borne upon accrescent pedicels of about equal length.
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Project Name
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