Orobanchaceae GH: 02033572 Castilleja applegatei Fernald USA: California Route 24, Along Feather River, above Pulga F. W. Pennell & A. A. Heller 25692 1940-6-5
GH: 01877917 Castilleja miniata Douglas ex Hooker USA: Arizona Route 66; west of Flagstaff F. W. Pennell & A. A. Heller 26474 1940-8-28
GH: 01879609 Castilleja sp. Linnaeus USA: California Route 24 Along Feather River, above Oroville... F. W. Pennell & A. A. Heller 25685 1940-6-5
GH: 01879581 Castilleja wightii rubra Pennell USA: California Route 24 Along Feather River, above Oroville F. W. Pennell & A. A. Heller 25676 1940-6-5
GH: 01879579 Castilleja wightii rubra Pennell USA: California Route 24, 6 miles up, Along Feather River, a... F. W. Pennell & A. A. Heller 25674 1940-6-5
Plantaginaceae GH: 01998991 Collinsia sparsiflora bruceae (M. E. Jones) Newsom USA: California [data not captured] F. W. Pennell & A. A. Heller 25679 1940-6-5
GH: 01999015 Collinsia tinctoria Hartweg ex Bentham USA: California [data not captured] F. W. Pennell & A. A. Heller 25684 1940-6-5
GH: 02002439 Penstemon attenuatus Douglas ex Lindley USA: California [data not captured] F. W. Pennell & A. A. Heller 25678 1940-6-5
GH: 02002580 Penstemon azureus Bentham USA: California [data not captured] F. W. Pennell & A. A. Heller 25675 1940-6-5
GH: 02002579 Penstemon azureus Bentham USA: California [data not captured] F. W. Pennell & A. A. Heller 25683 1940-6-5
GH: 02002947 Penstemon caelestinus Pennell USA: Montana [data not captured] F. W. Pennell & A. A. Heller 20521 1937-6-23
GH: 02120635 Penstemon laetus leptosepalus A. Gray USA: California [data not captured] F. W. Pennell & A. A. Heller 25682 1940-6-5
GH: 01801641 Penstemon sp. USA: California [data not captured] F. W. Pennell & A. A. Heller 25693 1940-6-5
Scrophulariaceae GH: 00367039 Diplacus grandiflorus Groenland USA: California Route 24, along Feather River, below Belden F. W. Pennell & A. A. Heller 25687 1940-6-5
GH: 00367253 Erythranthe glaucescens (Greene) G. L. Nesom USA: California Route 24, Along Feather River, above Orovill... F. W. Pennell & A. A. Heller 25686 1940-6-5
GH: 00367254 Erythranthe glaucescens (Greene) G. L. Nesom USA: California above Richardson Springs F. W. Pennell & A. A. Heller 25667 1940-6-4
GH: 00387433 Erythranthe latidens (Greene) G. L. Nesom USA: California about 4 miles west of Chico F. W. Pennell & A. A. Heller 25671 1940-6-4
GH: 00367039 Mimulus aurantiacus grandiflorus (Lindley) D. M. Thompson USA: California Route 24, along Feather River, below Belden F. W. Pennell & A. A. Heller 25687 1940-6-5
GH: 00367253 Mimulus glaucescens Greene USA: California Route 24, Along Feather River, above Orovill... F. W. Pennell & A. A. Heller 25686 1940-6-5
GH: 00367254 Mimulus glaucescens Greene USA: California above Richardson Springs F. W. Pennell & A. A. Heller 25667 1940-6-4
GH: 00387433 Mimulus latidens (A. Gray) Greene USA: California about 4 miles west of Chico F. W. Pennell & A. A. Heller 25671 1940-6-4