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Penstemon
Family: Plantaginaceae
Penstemon image
  • Gleason & Cronquist
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Vascular plants of NE US and adjacent Canada
Cal herbaceous, deeply 5-parted; cor tubular or trumpet-shaped, ±distinctly bilabiate, the tube much longer than the lobes; fertile stamens 4, about as long as the tube, the pollen-sacs divaricate; sterile stamen about as long as the fertile ones, usually yellow-bearded toward the tip; style elongate; stigma capitate; fr septicidal; ours (biennial or) perennial herbs, the erect stems arising from a rosette of petioled basal lvs, the cauline lvs oblong to lanceolate or ovate, sessile and often clasping, the upper progressively reduced; fls white to blue-violet or red-violet (red in some extralimital spp.), in terminal paniculiform or racemiform infls. Our spp. all with highly variable lvs, much alike from sp. to sp. 280, mainly N. Amer.

Gleason, Henry A. & Cronquist, Arthur J. 1991. Manual of vascular plants of northeastern United States and adjacent Canada. lxxv + 910 pp.

©The New York Botanical Garden. All rights reserved. Used by permission.
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Show all taxa || << 51 - 100 taxa >>
Penstemon californicus
Image of Penstemon californicus
Penstemon calycosus
Image of Penstemon calycosus
Penstemon campanulatus
Image of Penstemon campanulatus
Penstemon canescens
Image of Penstemon canescens
Penstemon cardinalis
Image of Penstemon cardinalis
Penstemon cardwellii
Image of Penstemon cardwellii
Penstemon carnosus
Image of Penstemon carnosus
Penstemon caryi
Image of Penstemon caryi
Penstemon cedrosensis
Image of Penstemon cedrosensis
Penstemon centranthifolius
Image of Penstemon centranthifolius
Penstemon cephalanthus
Image of Penstemon cephalanthus
Penstemon cephalophorus
Image of Penstemon cephalophorus
Penstemon chionophilus
Image of Penstemon chionophilus
Penstemon cinereus
Image of Penstemon cinereus
Penstemon cinicola
Image of Penstemon cinicola
Penstemon cleburnei
Image of Penstemon cleburnei
Penstemon clevelandii
Image of Penstemon clevelandii
Penstemon clutei
Image of Penstemon clutei
Penstemon cobaea
Image of Penstemon cobaea
Penstemon coccinatus
Image of Penstemon coccinatus
Penstemon coccineus
Image of Penstemon coccineus
Penstemon collinus
Image of Penstemon collinus
Penstemon comarrhenus
Image of Penstemon comarrhenus
Penstemon compactus
Image of Penstemon compactus
Penstemon concinnus
Image of Penstemon concinnus
Penstemon confertus
Image of Penstemon confertus
Penstemon confusus
Image of Penstemon confusus
Penstemon connatifolius
Image of Penstemon connatifolius
Penstemon coriaceus
Images
not available
Penstemon corymbosus
Image of Penstemon corymbosus
Penstemon crandallii
Image of Penstemon crandallii
Penstemon crassifolius
Images
not available
Penstemon cristatus
Image of Penstemon cristatus
Penstemon cusickii
Image of Penstemon cusickii
Penstemon cyananthus
Image of Penstemon cyananthus
Penstemon cyaneus
Image of Penstemon cyaneus
Penstemon cyanocaulis
Image of Penstemon cyanocaulis
Penstemon cyathophorus
Image of Penstemon cyathophorus
Penstemon dasyphyllus
Image of Penstemon dasyphyllus
Penstemon davidsonii
Image of Penstemon davidsonii
Penstemon deamii
Image of Penstemon deamii
Penstemon deaveri
Image of Penstemon deaveri
Penstemon debilis
Image of Penstemon debilis
Penstemon decurvus
Image of Penstemon decurvus
Penstemon degeneri
Image of Penstemon degeneri
Penstemon deserticola
Image of Penstemon deserticola
Penstemon desertipicti
Image of Penstemon desertipicti
Penstemon desertorum
Image of Penstemon desertorum
Penstemon deustus
Image of Penstemon deustus
Penstemon diffusus
Image of Penstemon diffusus
The National Science Foundation
Developments of SEINet, Symbiota, and associated specimen databases have been supported by National Science Foundation Grants (DBI 9983132, BRC 0237418, DBI 0743827, DBI 0847966)