Eryngium pectinatum Presl ex DC.

Eryngium pectinatum Presl; DC. Prodr. 4: 96. 1830
Eryngium longis pinum Coult. & Rose; Hemsl. in Hook. Ic. pi. 2766 2. 1903. Eryngium slenolobum Hemsl. in Hook. Ic. pi. 2766 2. 1903.
Stout, caulescent, glabrous perennials, 6-18 dm. high, from a short woody caudex bearing a fascicle of fleshy-fibrous roots, the stems solitary, erect; basal leaves numerous, linear, 2-6 dm. long, 4—12 mm. broad, broadest at the base, attenuate at the apex, spinose-lobed, the lobes spreading or divergent, the longest 1.5-4 cm. long, axillary and often intermediate spines usually well developed, the venation parallel; sheaths as broad as the blades, plane, 2-5 cm. long; cauline leaves like the basal, the lower alternate, ascending, the upper reduced, opposite, deeply spinose-serrate or pinnatifid; inflorescence cymosely branched, the heads large, numerous, pedunculate, the flowers numerous; heads blue, ovoid-oblong, 1.5-2.5 cm. long, 1.5-2 cm. broad; bracts 8-10, rigid, reflexed, linear-lanceolate, 2-5 cm. long, 3-8 mm. broad, pungent, coarsely spinose-serrate toward the base or rarely nearly entire, exceeding the heads; bractlets linear-lanceolate, 4-7 mm. long, curved, pungent, entire, exceeding the fruit; coma wanting; sepals ovate, about 2 mm. long, obtuse or acute, mucronate; petals ovate, about 2 mm. long; styles slender, surpassing the sepals; fruit turbinate, 3-4 mm. long, the scales of the angles forming two incised wings, the calycine scales small, the faces naked.
Type locality: Mexico, Haenke.
Distribution: Coahuila to Mexico and Morelos (Pringle 4359, 10,132).

Eryngium pectinatum là một loài thực vật có hoa trong họ Hoa tán. Loài này được C.Presl ex DC. mô tả khoa học đầu tiên năm 1830.