Amsonia peeblesii R. E. Woodson

Amsonia peeblesii Woodson, Bull. Torrey
Club 63: 35. 1936.
Stems 5-6 dm. tall, glabrous; leaves alternate to subverticillate, subsucculent, subsessile, linear-elliptic, 7-10 cm. long, 2-4 mm. broad, obtusely acuminate, attenuate at the base, wholly glabrous; inflorescence rather lax, barely surpassing the foliage, bearing several, medium-sized, pale-lead-blue flowers; pedicels 2-3 mm. long; calyx-lobes linear, obtusely acuminate, 6-6.5 mm. long, glabrous or very inconspicuously barbellate; corolla glabrous externally, the tube 17-18 mm. long, about 1.5 mm. in diameter at the base, somewhat inflated at the insertion of the stamens, slightly constricted at the orifice, the lobes 10-12 mm. long, spreading; follicles relatively stout, essentially continuous, 6-10 cm. long, glabrous.
Type IvOCAIvITy: [Coconino County,] Arizona. Distribution: Northern Arizona.