Tetragonotheca ludoviciana
Pl. Tex., 13. 1873.
Endemic
Basionym: Halea ludoviciana Torrey & A. Gray Fl. N. Amer. 2: 304. 1842
Treatment appears in FNA Volume 21. Treatment on page 178.
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.
Phenology: Flowering late spring–summer.
Habitat: Deep sandy soils with scrub oaks
Elevation: 10–100 m
Discussion
Selected References
None.
Lower Taxa
None.