Tauschia nudicaulis Schltdl.

Tauschia nudicaulis Schlecht Linnaea 9: 608. 1834
Velaea decumbens Benth. PI. Hartw. 38. 1840.
Arracacia decumbens Benth. & Hook.; Hemsl. Biol. Centr. Am. Bot. 1: 564. 1880.
Arracacia trifida Coult. & Rose; Urbina, Cat. PI. Mex. 105. 1897.
Tauschia decumbens Coult. & Rose; Drude in E. & P. Nat. Pfl. 3 9 : 170. 1898.
Arracacia tapalpac M. E. Jones, Contr. W. Bot. 18: 62. 1933.
Acaulescent or short-caulescent, decumbent or ascending from a stout taproot, 7-27 cm. high, puberulent throughout; leaves oblong in general outline, excluding the petioles 2-10 cm. long, 1-4 cm. broad, pinnate, the leaflets ovate, distinct or confluent, sessile to petiolulate, 5-20 mm. long, 5-15 mm. broad, crenate to incised or lobed, the margins cartilaginous; petioles 2-10 cm. long; peduncles 5-20 cm. long; involucre wanting; involucel of 3-6 ovate to linear, entire to lobed bractlets, usually exceeding the flowers; fertile rays 3-8, stout, unequal, 5-15 cm. long, puberulent and usually with a glandular ring at the summit ; pedicels 1-3 mm. long, puberulent ; calyx-teeth minute; flowers yellow; styles slender, spreading; carpophore 2-cleft to the base; fruit ovoid, tapering at the apex, 4-6 mm. long, 2-4 mm. broad, the ribs prominent, broad and obtuse with very narrow intervals; oil-tubes small, solitary in the intervals, 2 on the commissure; seed-face deeply sulcate.
Type locality: "In locis tenui gramine vestitis inter la Jova et San Salvador." Mexico, Schiede 288.
Distribution : Jalisco south to Vera Cruz, Mexico, and Puebla (Pringle 4744, SSS0, Purpus 300) .