Property:Pollen-sac shape

Types of pollen-sac shape

None.

Parts of pollen-sac shape

None.

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B
Bellardia latifolia +
mucronate  +
Bellardia trixago +
mucronate  +
C
Cymbalaria muralis subsp. muralis +
oblong  +
E
Epixiphium wislizeni +
oblong  +
G
Gambelia speciosa +
oblong  +
H
Holmgrenanthe petrophila +
oblong  +
K
Kickxia +
oblong  +
Kickxia elatine +
oblong  +
Kickxia spuria +
oblong  +
M
Mabrya acerifolia +
oblong  +
Maurandella antirrhiniflora +
oblong  +
P
Paulownia tomentosa +
flattened  +
Penstemon abietinus +
navicular  +
Penstemon absarokensis +
navicular  +
Penstemon acaulis +
navicular  +
Penstemon acuminatus +
navicular  +
Penstemon acuminatus var. acuminatus +
navicular  +
Penstemon acuminatus var. latebracteatus +
navicular  +
Penstemon alamosensis +
navicular  +
Penstemon albertinus +
navicular  +
Penstemon albidus +
navicular  +
Penstemon albomarginatus +
navicular  +
Penstemon ambiguus +
navicular  +
Penstemon ambiguus var. ambiguus +
navicular  +
Penstemon ambiguus var. laevissimus +
navicular  +
Penstemon ammophilus +
navicular  +
Penstemon anguineus +
navicular  +
Penstemon angustifolius +
navicular  +
Penstemon angustifolius var. angustifolius +
navicular  +
Penstemon angustifolius var. caudatus +
navicular  +
Penstemon angustifolius var. dulcis +
navicular  +
Penstemon angustifolius var. venosus +
navicular  +
Penstemon angustifolius var. vernalensis +
navicular  +
Penstemon arenarius +
navicular  +
Penstemon arenicola +
navicular  +
Penstemon aridus +
navicular  +
Penstemon arkansanus +
navicular  +
Penstemon attenuatus +
navicular  +, slightly saccate  +
Penstemon attenuatus var. attenuatus +
navicular  +, slightly saccate  +
Penstemon attenuatus var. militaris +
navicular  +, slightly saccate  +
Penstemon attenuatus var. palustris +
navicular  +, slightly saccate  +
Penstemon attenuatus var. pseudoprocerus +
navicular  +, slightly saccate  +
Penstemon atwoodii +
navicular  +
Penstemon auriberbis +
navicular  +
Penstemon australis +
navicular  +
Penstemon azureus +
navicular  +
Penstemon azureus var. angustissimus +
navicular  +
Penstemon azureus var. azureus +
navicular  +
Penstemon baccharifolius +
navicular  +, saccate  +
Penstemon barbatus +
navicular  +
Penstemon barbatus var. barbatus +
navicular  +
Penstemon barbatus var. torreyi +
navicular  +
Penstemon barbatus var. trichander +
navicular  +
Penstemon barnebyi +
navicular  +
Penstemon bicolor +
denticulate  +, navicular  +
Penstemon bleaklyi +
navicular  +
Penstemon bracteatus +
navicular  +
Penstemon breviculus +
navicular  +
Penstemon brevisepalus +
navicular  +
Penstemon buckleyi +
navicular  +
Penstemon caesius +
navicular  +
Penstemon caespitosus +
navicular  +
Penstemon caespitosus var. caespitosus +
navicular  +
Penstemon caespitosus var. desertipicti +
navicular  +
Penstemon caespitosus var. perbrevis +
navicular  +
Penstemon calcareus +
navicular  +
Penstemon californicus +
navicular  +
Penstemon calycosus +
navicular  +
Penstemon canescens +
navicular  +
Penstemon cardinalis +
navicular  +
Penstemon cardinalis var. cardinalis +
navicular  +
Penstemon cardinalis var. regalis +
navicular  +
Penstemon carnosus +
navicular  +
Penstemon caryi +
navicular  +
Penstemon centranthifolius +
navicular  +
Penstemon cinicola +
navicular  +
Penstemon clevelandii +
navicular  +
Penstemon clevelandii var. clevelandii +
navicular  +
Penstemon clevelandii var. connatus +
navicular  +
Penstemon clevelandii var. mohavensis +
navicular  +
Penstemon clutei +
denticulate  +, navicular  +
Penstemon cobaea +
navicular  +
Penstemon cobaea var. cobaea +
navicular  +
Penstemon cobaea var. purpureus +
navicular  +
Penstemon comarrhenus +
navicular  +
Penstemon compactus +
navicular  +
Penstemon concinnus +
navicular  +
Penstemon confertus +
navicular  +
Penstemon confusus +
navicular  +
Penstemon crandallii +
navicular  +
Penstemon crandallii var. atratus +
navicular  +
Penstemon crandallii var. crandallii +
navicular  +
Penstemon crandallii var. glabrescens +
navicular  +
Penstemon crandallii var. procumbens +
navicular  +
Penstemon crandallii var. ramaleyi +
navicular  +
Penstemon cusickii +
navicular  +
Penstemon cyananthus +
navicular  +
Penstemon cyananthus var. cyananthus +
navicular  +
Penstemon cyananthus var. judyae +
navicular  +
Penstemon cyananthus var. subglaber +
navicular  +
Penstemon cyaneus +
navicular  +
Penstemon cyanocaulis +
navicular  +
Penstemon cyathophorus +
navicular  +
Penstemon dasyphyllus +
navicular  +, slightly saccate  +
Penstemon deamii +
navicular  +
Penstemon deaveri +
navicular  +
Penstemon debilis +
navicular  +
Penstemon degeneri +
navicular  +
Penstemon deustus +
navicular  +
Penstemon deustus var. deustus +
navicular  +
Penstemon deustus var. pedicillatus +
navicular  +
Penstemon deustus var. suffrutescens +
navicular  +
Penstemon deustus var. variabilis +
navicular  +
Penstemon digitalis +
navicular  +
Penstemon diphyllus +
navicular  +
Penstemon discolor +
navicular  +
Penstemon dissectus +
navicular  +
Penstemon distans +
navicular  +
Penstemon dolius +
navicular  +
Penstemon duchesnensis +
navicular  +
Penstemon eatonii +
navicular  +
Penstemon eatonii var. eatonii +
navicular  +
Penstemon eatonii var. exsertus +
navicular  +
Penstemon eatonii var. undosus +
navicular  +
Penstemon elegantulus +
navicular  +
Penstemon eriantherus +
navicular  +
Penstemon eriantherus var. argillosus +
navicular  +
Penstemon eriantherus var. cleburnei +
navicular  +
Penstemon eriantherus var. eriantherus +
navicular  +
Penstemon eriantherus var. redactus +
navicular  +
Penstemon eriantherus var. whitedii +
navicular  +
Penstemon euglaucus +
navicular  +
Penstemon fendleri +
navicular  +
Penstemon filiformis +
navicular  +
Penstemon flavescens +
navicular  +
Penstemon floribundus +
navicular  +
Penstemon floridus +
denticulate  +, navicular  +
Penstemon floridus var. austinii +
denticulate  +, navicular  +
Penstemon floridus var. floridus +
denticulate  +, navicular  +
Penstemon flowersii +
navicular  +
Penstemon franklinii +
navicular  +
Penstemon fremontii +
navicular  +
Penstemon fremontii var. fremontii +
navicular  +
Penstemon fremontii var. glabrescens +
navicular  +
Penstemon fruticiformis +
denticulate  +, navicular  +
Penstemon fruticiformis var. amargosae +
denticulate  +, navicular  +
Penstemon fruticiformis var. fruticiformis +
denticulate  +, navicular  +
Penstemon gairdneri +
navicular  +
Penstemon gairdneri var. gairdneri +
navicular  +
Penstemon gairdneri var. oreganus +
navicular  +
Penstemon gibbensii +
navicular  +
Penstemon glaber +
navicular  +
Penstemon glaber var. alpinus +
navicular  +
Penstemon glaber var. brandegeei +
navicular  +
Penstemon glaber var. glaber +
navicular  +
Penstemon glandulosus +
navicular  +
Penstemon glandulosus var. chelanensis +
navicular  +
Penstemon glandulosus var. glandulosus +
navicular  +
Penstemon glaucinus +
navicular  +
Penstemon globosus +
navicular  +
Penstemon goodrichii +
navicular  +
Penstemon gormanii +
navicular  +
Penstemon gracilentus +
navicular  +
Penstemon gracilis +
navicular  +
Penstemon grahamii +
navicular  +
Penstemon grandiflorus +
navicular  +
Penstemon griffinii +
navicular  +
Penstemon grinnellii +
navicular  +
Penstemon guadalupensis +
navicular  +
Penstemon hallii +
navicular  +
Penstemon harbourii +
navicular  +
Penstemon harringtonii +
navicular  +
Penstemon havardii +
navicular  +
Penstemon haydenii +
navicular  +
Penstemon heterodoxus +
navicular  +
Penstemon heterodoxus var. cephalophorus +
navicular  +
Penstemon heterodoxus var. heterodoxus +
navicular  +
Penstemon heterodoxus var. shastensis +
navicular  +
Penstemon heterophyllus +
navicular  +
Penstemon heterophyllus var. australis +
navicular  +
Penstemon heterophyllus var. heterophyllus +
navicular  +
Penstemon heterophyllus var. purdyi +
navicular  +
Penstemon hirsutus +
navicular  +
Penstemon humilis +
navicular  +
Penstemon humilis var. brevifolius +
navicular  +
Penstemon humilis var. humilis +
navicular  +
Penstemon humilis var. obtusifolius +
navicular  +
Penstemon idahoensis +
navicular  +
Penstemon immanifestus +
navicular  +
Penstemon incertus +
navicular  +
Penstemon inflatus +
navicular  +
Penstemon jamesii +
navicular  +
Penstemon janishiae +
navicular  +
Penstemon kingii +
navicular  +
Penstemon kralii +
navicular  +
Penstemon labrosus +
navicular  +
Penstemon laetus +
navicular  +
Penstemon laetus var. laetus +
navicular  +
Penstemon laetus var. leptosepalus +
navicular  +
Penstemon laetus var. sagittatus +
navicular  +
Penstemon laevigatus +
navicular  +
Penstemon laevis +
navicular  +
Penstemon lanceolatus +
navicular  +, slightly saccate  +
Penstemon laricifolius +
navicular  +
Penstemon laricifolius var. exilifolius +
navicular  +
Penstemon laricifolius var. laricifolius +
navicular  +
Penstemon laxiflorus +
navicular  +
Penstemon laxus +
navicular  +
Penstemon leiophyllus +
navicular  +
Penstemon leiophyllus var. francisci-pennellii +
navicular  +
Penstemon leiophyllus var. keckii +
navicular  +
Penstemon leiophyllus var. leiophyllus +
navicular  +
Penstemon lemhiensis +
navicular  +
Penstemon lentus +
navicular  +
Penstemon lentus var. albiflorus +
navicular  +
Penstemon lentus var. lentus +
navicular  +
Penstemon leonardii +
navicular  +
Penstemon leonardii var. higginsii +
navicular  +
Penstemon leonardii var. leonardii +
navicular  +
Penstemon leonardii var. patricus +
navicular  +
Penstemon linarioides +
navicular  +
Penstemon linarioides var. coloradoensis +
navicular  +
Penstemon linarioides var. linarioides +
navicular  +
Penstemon linarioides var. maguirei +
navicular  +
Penstemon linarioides var. sileri +
navicular  +
Penstemon longiflorus +
navicular  +
Penstemon marcusii +
navicular  +
Penstemon mensarum +
navicular  +
Penstemon metcalfei +
navicular  +
Penstemon miser +
navicular  +
Penstemon moffatii +
navicular  +
Penstemon monoensis +
navicular  +
Penstemon moriahensis +
navicular  +
Penstemon mucronatus +
navicular  +
Penstemon multiflorus +
navicular  +
Penstemon murrayanus +
navicular  +
Penstemon nanus +
navicular  +
Penstemon navajoa +
navicular  +
Penstemon neomexicanus +
navicular  +
Penstemon neotericus +
navicular  +
Penstemon nitidus +
navicular  +
Penstemon nitidus var. nitidus +
navicular  +
Penstemon nitidus var. polyphyllus +
navicular  +
Penstemon nudiflorus +
navicular  +
Penstemon oklahomensis +
navicular  +
Penstemon oliganthus +
navicular  +
Penstemon ophianthus +
navicular  +
Penstemon osterhoutii +
navicular  +
Penstemon ovatus +
navicular  +
Penstemon pachyphyllus +
navicular  +
Penstemon pachyphyllus var. congestus +
navicular  +
Penstemon pachyphyllus var. pachyphyllus +
navicular  +
Penstemon pahutensis +
navicular  +
Penstemon pallidus +
navicular  +
Penstemon palmeri +
navicular  +
Penstemon palmeri var. eglandulosus +
navicular  +
Penstemon palmeri var. macranthus +
navicular  +
Penstemon palmeri var. palmeri +
navicular  +
Penstemon papillatus +
navicular  +
Penstemon parryi +
navicular  +
Penstemon parvulus +
navicular  +
Penstemon parvus +
navicular  +
Penstemon patens +
navicular  +
Penstemon payettensis +
navicular  +
Penstemon paysoniorum +
navicular  +
Penstemon peckii +
navicular  +
Penstemon penlandii +
navicular  +
Penstemon pennellianus +
navicular  +
Penstemon perpulcher +
navicular  +
Penstemon petiolatus +
navicular  +
Penstemon pinifolius +
navicular  +
Penstemon pinorum +
navicular  +
Penstemon platyphyllus +
navicular  +
Penstemon pratensis +
navicular  +
Penstemon procerus +
navicular  +
Penstemon procerus var. aberrans +
navicular  +
Penstemon procerus var. brachyanthus +
navicular  +
Penstemon procerus var. formosus +
navicular  +
Penstemon procerus var. modestus +
navicular  +
Penstemon procerus var. procerus +
navicular  +
Penstemon procerus var. tolmiei +
navicular  +
Penstemon pruinosus +
navicular  +
Penstemon pseudoputus +
navicular  +
Penstemon pseudospectabilis +
denticulate  +, navicular  +
Penstemon pseudospectabilis var. connatifolius +
denticulate  +, navicular  +
Penstemon pseudospectabilis var. pseudospectabilis +
denticulate  +, navicular  +
Penstemon pudicus +
navicular  +
Penstemon pumilus +
navicular  +
Penstemon purpusii +
navicular  +
Penstemon putus +
navicular  +
Penstemon radicosus +
navicular  +
Penstemon rattanii +
navicular  +
Penstemon rattanii var. kleei +
navicular  +
Penstemon rattanii var. rattanii +
navicular  +
Penstemon retrorsus +
navicular  +
Penstemon rhizomatosus +
navicular  +
Penstemon richardsonii +
navicular  +
Penstemon richardsonii var. curtiflorus +
navicular  +
Penstemon richardsonii var. dentatus +
navicular  +
Penstemon richardsonii var. richardsonii +
navicular  +
Penstemon roezlii +
navicular  +
Penstemon rostriflorus +
navicular  +
Penstemon rubicundus +
navicular  +
Penstemon rydbergii +
navicular  +
Penstemon rydbergii var. aggregatus +
navicular  +
Penstemon rydbergii var. oreocharis +
navicular  +
Penstemon rydbergii var. rydbergii +
navicular  +
Penstemon saxosorum +
navicular  +
Penstemon scapoides +
navicular  +
Penstemon scariosus +
navicular  +, navicular-sigmoid  +
Penstemon scariosus var. albifluvis +
navicular  +, navicular-sigmoid  +
Penstemon scariosus var. cyanomontanus +
navicular  +, navicular-sigmoid  +
Penstemon scariosus var. garrettii +
navicular  +, navicular-sigmoid  +
Penstemon scariosus var. scariosus +
navicular  +, navicular-sigmoid  +
Penstemon sect. Ambigui +
navicular  +
Penstemon sect. Baccharifolii +
navicular  +, saccate  +
Penstemon sect. Bridgesiani +
navicular  +
Penstemon sect. Caespitosi +
navicular  +
Penstemon sect. Chamaeleon +
navicular  +, slightly saccate  +
Penstemon sect. Coerulei +
navicular  +
Penstemon sect. Cristati +
navicular  +
Penstemon sect. Dissecti +
navicular  +
Penstemon sect. Elmigera +
navicular  +
Penstemon sect. Gentianoides +
navicular  +
Penstemon sect. Glabri +
navicular  +
Penstemon sect. Penstemon +
navicular  +
Penstemon sect. Petiolati +
navicular  +
Penstemon sect. Saccanthera +
navicular  +
Penstemon sect. Spectabiles +
denticulate  +, navicular  +
Penstemon secundiflorus +
navicular  +
Penstemon secundiflorus var. secundiflorus +
navicular  +
Penstemon secundiflorus var. versicolor +
navicular  +
Penstemon seorsus +
navicular  +
Penstemon sepalulus +
navicular  +
Penstemon serrulatus +
navicular  +
Penstemon smallii +
navicular  +
Penstemon spatulatus +
navicular  +
Penstemon speciosus +
navicular  +
Penstemon spectabilis +
navicular  +
Penstemon spectabilis var. spectabilis +
navicular  +
Penstemon spectabilis var. subviscosus +
navicular  +
Penstemon stenophyllus +
navicular  +, slightly saccate  +
Penstemon stephensii +
denticulate  +, navicular  +
Penstemon strictiformis +
navicular  +
Penstemon strictus +
navicular  +
Penstemon subg. Penstemon +
navicular  +
Penstemon subglaber +
navicular  +
Penstemon subserratus +
navicular  +
Penstemon subulatus +
navicular  +
Penstemon sudans +
navicular  +
Penstemon superbus +
navicular  +
Penstemon tenuiflorus +
navicular  +
Penstemon tenuis +
navicular  +
Penstemon teucrioides +
navicular  +
Penstemon thompsoniae +
navicular  +
Penstemon thurberi +
navicular  +
Penstemon tidestromii +
navicular  +
Penstemon tiehmii +
navicular  +
Penstemon tracyi +
navicular  +
Penstemon triflorus +
navicular  +
Penstemon triflorus var. integrifolius +
navicular  +
Penstemon triflorus var. triflorus +
navicular  +
Penstemon triphyllus +
navicular  +
Penstemon tubaeflorus +
navicular  +
Penstemon uintahensis +
navicular  +
Penstemon utahensis +
navicular  +
Penstemon venustus +
navicular  +
Penstemon virens +
navicular  +
Penstemon virgatus +
navicular  +
Penstemon virgatus var. asa-grayi +
navicular  +
Penstemon virgatus var. virgatus +
navicular  +
Penstemon wardii +
navicular  +
Penstemon washingtonensis +
navicular  +
Penstemon watsonii +
navicular  +
Penstemon whippleanus +
navicular  +
Penstemon wilcoxii +
navicular  +
Penstemon wrightii +
navicular  +
Penstemon xylus +
navicular  +
Penstemon yampaënsis +
navicular  +