Harvard University Herbaria & Libraries

Plantaginaceae
GH: 02002123 Penstemon angustifolius Nuttall ex Pursh USA: Colorado Along CO 59, 3.4 mi N of Siebert. C. C. Freeman 503 1980-6-4
GH: 02002160 Penstemon angustifolius Nuttall ex Pursh USA: Wyoming US 85, 9.7 mi S of the Goshen Co. line. C. C. Freeman 567 1980-6-11
GH: 02002159 Penstemon angustifolius Nuttall ex Pursh USA: Wyoming US 85, 8.4 mi NE of the jct of US 85 & I-25. C. C. Freeman 569 1980-6-11
GH: 02002177 Penstemon angustifolius caudatus (A. Heller) D. D. Keck USA: Colorado Along a frontage road of I-25, 2.5 mi N of T... C. C. Freeman 434 1980-5-22
GH: 02119786 Penstemon glaber Pursh USA: Wyoming Along WY 59, 12.9 mi N of the Converse Co. L... C. C. Freeman 555 1980-6-10
GH: 02120186 Penstemon haydenii S. Watson USA: Nebraska NE 97, 3.7 mi N of the McPherson Co. line on... C. C. Freeman 522 1980-6-5