Naamgeving
| Nederlandse naam | Noordse helm |
| Geldige naam | Calamagrostis ×calammophila Saarela |
| Synoniem | Calammophila baltica (Flüggé ex Schrad.) Brand |
| Synoniem | Ammocalamagrostis baltica (Schrad.) P.Fourn. |
| Synoniem sensu lato | Ammophila arenaria × Calamagrostis epigejos |
| Synoniem sensu lato | Calamagrostis arenaria × epigejos |
Indeling
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Plantae [rijk]
Planten
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Tracheophyta [fylum]
Vaatplanten
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Spermatophyta [klasse]
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Angiospermae [infraclass]
Bedektzadigen
-
Poales [orde]
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Poaceae [familie]
Grassenfamilie
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Calamagrostis Adans. [genus]
Struisriet
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Calamagrostis ××calammophila Saarela [nothospecies]
Noordse helm
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Calamagrostis ××calammophila Saarela [nothospecies]
Noordse helm
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Calamagrostis Adans. [genus]
Struisriet
-
Poaceae [familie]
Grassenfamilie
-
Poales [orde]
-
Angiospermae [infraclass]
Bedektzadigen
-
Spermatophyta [klasse]
-
Tracheophyta [fylum]
Vaatplanten