Phyla lanceolata (Michx.) Greene
Family: Verbenaceae
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Paul Rothrock  
Perennial herb to 0.6 m tall Stem: trailing, with ascending or erect flower stems arising from rooting vegetative stems. Leaves: opposite, short-stalked, 2 - 6 cm long, 0.8 - 1.5 cm wide, lance-shaped to egg-shaped, tapering at both ends, with five to eleven teeth per side. Flowers: borne in a head-like axillary spike, with broad egg-shaped pointed bracts equal to or longer than the small membranous calyx and stamens shorter than or slightly longer than the corolla tube. The corolla is white to bluish or pink, often with a yellow eye, has a very slender tube that is slightly longer than the calyx (about 2 mm long), and four unequal spreading lobes appearing somewhat two-lipped. Fruit: two nutlets surrounded by or joined to the calyx.

Similar species: Phyla species have axillary inflorescences, four-lobed corollas and fruit separating into two nutlets. Phyla cuneifolia differs by having narrow inversely egg-shaped leaves with broadly rounded leaf tips and one to three teeth per side.

Flowering: mid June to late September

Habitat and ecology: Common in muddy, fluctuating stream and pond borders with limited competition, and occasional on mudflats or in wet soil.

Occurence in the Chicago region: native

Etymology: Phyla means tribe. Lanceolata means lance-shaped.

Author: The Morton Arboretum

From Flora of Indiana (1940) by Charles C. Deam
Found in various habitats throughout the state. Infrequent on the muddy borders of streams, lakes, ponds, and bayous, and in ditches, usually growing with grasses and sedges. When it has competition it does not root at the nodes but when it grows on the muddy borders of banks and on sandbars it becomes a creeping plant up to a yard long, rooting at the nodes.

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Indiana Coefficient of Conservatism: C = 2

Wetland Indicator Status: OBL

Trailing perennial herb with ascending or erect stems to 6 dm from a prostrate or distally assurgent, rooting aerial stem or superficial rhizome; lvs short-petiolate, with lance- elliptic or ovate, ±distinctly acute blade mostly 2-6 נ1-4.5 cm, 1.5-5 times as long as wide, broadest below or near the middle, saliently toothed to below the middle, with 5-10 teeth per side; spikes pedunculate from the axils, at first capitate, less than 1 cm, and fully as thick as long, but elongating to 1-2 cm during anthesis; bracts broad, 2.5-3 mm, equaling or usually surpassing the cal; cor white or pink, often with a yellow eye, the tube ca 2 mm, the lower lip 1.5-2 mm, the upper much shorter; 2n=32, 36. Moist, low ground and muddy flats, both coastal and inland; Ont., to Minn. and S.D., s. to Fla. and Mex. May-Oct. (Lippia l.)

Gleason, Henry A. & Cronquist, Arthur J. 1991. Manual of vascular plants of northeastern United States and adjacent Canada. lxxv + 910 pp.

©The New York Botanical Garden. All rights reserved. Used by permission.
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Paul Rothrock  
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Jose Hernandez  
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Jose Hernandez  
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