EcoFlora - Tetragonotheca ludoviciana

Tetragonotheca ludoviciana (Torr. & A. Gray) A. Gray ex H.M. Hall
Family: Asteraceae Louisiana Nerveray $Tetragonotheca ludoviciana image$	FNA Resources John L. Strother in Flora of North America (vol. 21) Stems sparsely tomentulose or glabrous. Leaves mostly cauline (distal connate-perfoliate); blades rounded-deltate to ovate, 8-12 × 4-9 cm, coarsely toothed. Ray florets 12-13; laminae 8-18 mm. Cypselae ± quadrate, 4-6 mm; pappi of 16-30, obovate to spatulate scales 0.5-2 mm. 2n = 34. Flowering late spring-summer. Deep sandy soils with scrub oaks; 10-100 m; La., Tex.
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