| Stable identifier | Scientific Name | Media |
| https://herbarium.bgbm.org/object/B100742997 | Viola tricolor L. |
|
| https://herbarium.bgbm.org/object/B100461323 | Orchis cruenta |
|
| https://herbarium.bgbm.org/object/B100461458 | Anacamptis palustris subsp. elegans (Heuff.) R.M.Bateman, Pridgeon & M.W.Chase |
|
| https://herbarium.bgbm.org/object/B100461492 | Anacamptis papilionacea (L.) R.M.Bateman, Pridgeon & M.W.Chase |
|
| https://herbarium.bgbm.org/object/B100241524 | Draba dorneri Heuffel |
|
| http://herbarium.bgbm.org/object/B100749312 | Symphytum cordatum Waldst. & Kit. ex Willd. |
|
| https://herbarium.bgbm.org/object/B100842252 | Campanula sibirica L. |
|
| https://herbarium.bgbm.org/object/B100842281 | Pulmonaria officinalis L. |
|
| https://herbarium.bgbm.org/object/B100842331 | Echium italicum L. |
|
| http://herbarium.bgbm.org/object/B100325731 | Veronica austriaca subsp. jacquinii (Baumg.) K. Malý |
|
| Stable identifier | Scientific Name | Media |
| https://dr.jacq.org/DR058866 | Sesleria rigida Heuff. ex Rchb. |
|
| https://dr.jacq.org/DR057005 | Helictotrichon compressum (Heuff.) Henrard |
|
| https://dr.jacq.org/DR000184 | Taraxacum janchenii Kirschner & Štěpánek |
|
| https://dr.jacq.org/DR058865 | Sesleria rigida Heuff. ex Rchb. |
|
| https://dr.jacq.org/DR056908 | Ventenata dubia (Leers) Coss. & Durieu |
|
| https://dr.jacq.org/DR058871 | Carex dacica Heuff. |
|
| https://dr.jacq.org/DR081353 | Allium ammophilum Heuff. |
|
| https://dr.jacq.org/DR083822 | Orchis rivularis Heuff. ex Schur |
|
| Stable identifier | Scientific Name | Media |
| https://gjo.jacq.org/GJO0049095 | Polytrichum sexangulare Flörke ex Brid. |
|
| https://gjo.jacq.org/GJO0040753 | Carex grypos Schkuhr |
|
| https://gjo.jacq.org/GJO0047303 | Crocus moesiacus Ker Gawl. |
|
| https://gjo.jacq.org/GJO0091729 | Draba dorneri Heuff. |
|
| https://gjo.jacq.org/GJO0052397 | Cyperus glomeratus L. |
|
| https://gjo.jacq.org/GJO0095006 | Helleborus odorus Waldst. & Kit. ex Willd. |
|
| https://gjo.jacq.org/GJO0038947 | Carex pyrenaica Wahlenb. |
|
| https://gjo.jacq.org/GJO0040363 | Carex riparia Curtis |
|
| https://gjo.jacq.org/GJO0031898 | Quercus esculus L. |
|
| https://gjo.jacq.org/GJO0095966 | Erysimum canum (Piller & Mitterp.) Polatschek |
|
| Stable identifier | Scientific Name | Media |
| https://gzu.jacq.org/GZU000055255 | Asperula hexaphylla All. |
|
| Stable identifier | Scientific Name | Media |
| https://je.jacq.org/JE00011260 | Orchis laxiflora subsp. elegans (Heuff.) Soó |
|
| https://je.jacq.org/JE00007661 | Ranunculus flabellifolius Heuff. ex Rchb. |
|
| https://je.jacq.org/JE00018113 | Fumaria schleicheri Soy.-Will. |
|
| https://je.jacq.org/JE00016623 | Galium kitaibelianum Schult. & Schult. f. |
|
| https://je.jacq.org/JE00018114 | Fumaria schleicheri Soy.-Will. |
|
| https://je.jacq.org/JE00018112 | Fumaria schleicheri Soy.-Will. |
|
| Stable identifier | Scientific Name | Media |
| https://prc.jacq.org/PRC454519 | Vicia chlorantha Heuff. ex Nyman |
|
| Stable identifier | Scientific Name | Media |
| https://w.jacq.org/W0060329 | Aëthionema saxatile subsp. saxatile (L.) W. T. Aiton |
|
| https://w.jacq.org/W19310012826C | Alyssoides utriculata (L.) Medik. |
|
| https://w.jacq.org/W18890160220 | Lamium garganicum subsp. garganicum L. |
|
| https://w.jacq.org/W0075399 | Veronica bachofenii Heuff. |
|
| https://w.jacq.org/W0007099 | Festuca vaginata Waldst. & Kit. ex Willd. |
|
| https://w.jacq.org/W18890244419 | Stipa calamagrostis (L.) Wahlenb. |
|
| https://w.jacq.org/W18890246360 | Sesleria rigida Heuff. ex Rchb. |
|
| https://w.jacq.org/W18890224981 | Aëthionema saxatile subsp. saxatile (L.) W. T. Aiton |
|
| https://w.jacq.org/W18890242458 | Crypsis alopecuroides (Piller & Mitterp.) Schrad. |
|
| https://w.jacq.org/W18890250174 | Festuca vaginata Waldst. & Kit. ex Willd. |
|
Publications by János Heuffel