Eryngium rosei Hemsl.

Eryngium rosei Hemsl. in Hook. Ic. pi. 2579. 1899
Slender, subscapose, glabrous perennials, 0.5-3 dm. high, from a fascicle of fleshy-fibrous roots, the flowering stems solitary or few, erect; basal leaves coriaceous, rosulate, oval to oblanceolate, 2-3 cm. long, 1-1.5 cm. broad, rounded or slightly cuneate at the base, obtuse at the apex, densely spinose-ciliate, the cilia 2-5 mm. long, the venation pinnately reticulate; petioles more or less winged, vaginate below, sheathing at the base, 1-4 cm. long, shorter or longer than the blades; cauline leaves few, like the basal, those of the inflorescence sessile, opposite or in threes; inflorescence usually simply trifurcate, the heads few, small, pedunculate, the flowers numerous; heads deep blue, globose, 5-10 mm. long; bracts 8-12, chartaceous, stellate-spreading, oblanceolate, 1-2 cm. long, 3-8 mm. broad, obtuse, apiculate, entire or spinosely few-toothed near the apex, blue or green beneath and white above, greatly exceeding the heads; bractlets linear-oblong, 3-4 mm. long, entire, pungent, exceeding the fruit; coma wanting; sepals ovate, 1-1.5 mm. long, obtuse, mucronate; petals obovate, about 1.5 mm. long; styles short but exceeding the sepals; fruit oblong, 1-1.5 mm. long, the calycine scales lanceolate, acute, the dorsal and lateral faces papillate.
Type locality: Between Dolores and Santa Gertrudis, and other localities, Nayarit and Zacatecas, Rose 2035.
Distribution: Nayarit and Zacatecas (Rose 3456, 3526).

Eryngium rosei là một loài thực vật có hoa trong họ Hoa tán. Loài này được Hemsl. mô tả khoa học đầu tiên năm 1899.