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(Last Modified On 5/10/2013)
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(Last Modified On 5/10/2013)
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Subspecific
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Phyla nodiflora var. nodiflora (L.) Greene
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Habit
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herb
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Synonym
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Verbena nodiflora L., Sp. P1. 20. 1753. Verbena capitata Forsk., Fl. Aegypt.-arab. 10. 1775. Blairia nodiflora (L.) Gaertn., Fruct. Sem. P1. 1: 266, pl. 56. 1788. Phyla chinensis Lour., Fl. Cochinch., ed. 1. 66. 1790. Zapania nodiflora (L.) Lam., Tabl. Encycl. Meth. Bot. 1: 59, pl. 17, fig. 3. 1791. Lippia nodiflora (L.) Michx., Fl. Bor. Amer. 2: 15. 1803. Verbena repens Bertol., Rar. Ital. P1. Dec. 2: 27. 1806. Platonia nudiflora Raf., Med. Repos. 5: 352. 1808. Verbena sarmentosa Willd., Enum. Hort. Berol. 632. 1809. Zapania repens (Bertol.) Bertol., Rar. Ital. P1. Dec. 3: 27. 1810. Bertolonia crassifolia Raf., Chloris Aetn. 5. 1815. Bertolonia scabra Raf. ex McMurtie, Sketch Louisv. 214. 1819. Lippia sarmentosa (Willd.) Spreng. in L., Syst. Veg., ed. 16. 2: 752. 1825. Lippia repens Spreng. in L., Syst. Veg., ed. 16. 2: 752. 1825. Verbena repens Petagn. ex Spreng. in L., loc. cit. 2: 752. 1825. Zapania crassifolia (Raf.) Raf., Herb. Raf. 66. 1833. Piarimula chinensis Raf., Fl. Tellur. 2: 102. 1836. Lippia nodiflora x vulgaris Walp., Repert. Bot. Syst. 4: 49. 1845. Lippia nodiflora var. sarmentosa (Willd.) Schau. in A. DC., Prodr. 11: 585. 1847. Lippia nodiflora var. repens (Bertol.) Schau. in A. DC., op. cit. 11: 586. 1847. Lippia nodiflora ot normalis Kuntze, Rev. Gen. P1. 2: 508. 1891. Lippia nodiflora ae normalis fo. brevipes Planch. ex Kuntze, loc. cit. 2: 508. 1891.
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Description
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Perennial creeping herbs; stems prostrate, mostly rooting at the nodes, usually 30-90 cm long; branches slender, procumbent or ascending, densely appressed- strigillose to minutely puberulent or glabrate. Leaves with the blades thick- textured, fleshy when fresh, spatulate or oblanceolate to obovate, sometimes elliptic or cuneiform, 1-7.2 cm long and 0.6-2.5 cm wide, rounded or obtuse (rarely subacute) apically, narrowed into a long- or short-cuneate base, sharply serrate above the middle with sharply acute or acuminate mostly appressed or subappressed teeth, entire basally, minutely or densely strigillose-puberulent on both surfaces or glabrous, the venation usually indiscernible on both surfaces or at least inconspicuous; petioles 2-8 mm long or obsolete, often so broadly cuneate- margined as to appear as though a part of the blade. Spikes at first globose, cylindric and elongate in age, 1-2.5 cm long when mature and 6-9 mm in diameter, densely many-flowered; peduncles solitary in each axil, slender, often much elon- gate, usually much longer than the subtending leaves, 1-11.5 cm long, densely or sparsely appressed-puberulent or strigose with antrorse canescent trichomes, or glabrous; bractlets closely imbricate, obovate or subrhomboid-cuneate, subequal- ing the corolla-tube, often broadly membranous-margined apically, mucronate- acuminate or muticous, glabrous or finely ciliate. Flowers with the calyx hyaline- membranous, flattened, about equaling the corolla-tube, deeply 2-cleft, slightly 2-carinate, the keels puberulent, the lobes lanceolate; corolla purple or pink to white, 2-2.5 mm long, slightly surpassing the bractlets, the limb exiguous, slightly strigillose.
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Note
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In wet or moist soil, fields, hillsides, clearings, savannas, beaches, and thickets, widely distributed throughout the subtropical and tropical portions of the Old and New Worlds, especially abundant in moist sandy soil; extremely variable and polymorphic.
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