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Reedgrasses
Calamagrostis
Calamagrostis (reed grass or smallweed) is a genus of flowering plants in the grass family Poaceae, with about 260 species that occur mainly in temperate regions of the globe. Towards equatorial latitudes, species of Calamagrostis generally occur at higher elevations. These tufted perennials usually have hairless narrow leaves. The ligules are usually blunt. The inflorescence forms a panicle. Some may be reed-like.
The plants may be rhizomatous (underground stems with shoots), stoloniferous (with runners), or caespitose (growing in tufts or clumps). The bisexual spikelets have a single floret and generally they are purple or purple-brown. The spikelets are clustered into inflorescences, which usually develop in early- to mid-summer on long culms ( = stems).
60 branches of this genus, most-observed first
Bushgrass
speciesCalamagrostis epigejos
European marram grass
speciesCalamagrostis arenaria
canadian bluejoint
speciesCalamagrostis canadensis
American marram grass
speciesCalamagrostis breviligulata
Deyeuxia
subgenusDeyeuxia
Scandinavian Small-reed
speciesCalamagrostis purpurea
Purple Small-reed
speciesCalamagrostis canescens
Pacific Small-reedgrass
speciesCalamagrostis nutkaensis
Purple Reedgrass
speciesCalamagrostis purpurascens
pine reed grass
speciesCalamagrostis rubescens
feather reed grass
hybridCalamagrostis × acutiflora
hairy reed grass
speciesCalamagrostis villosa
Northern Reedgrass
speciesCalamagrostis inexpansa
Calamagrostis pseudophragmites
speciesCalamagrostis pseudophragmites
serpentine reedgrass
speciesCalamagrostis ophitidis
Korean feather-reed grass
speciesCalamagrostis brachytricha
Lapland Reedgrass
speciesCalamagrostis lapponica
Calamagrostis obtusata
speciesCalamagrostis obtusata
Pickering's Reed Bentgrass
speciesCalamagrostis pickeringii
Calamagrostis extremiorientalis
speciesCalamagrostis extremiorientalis
hybrid marram grass
hybridCalamagrostis arenaria × breviligulata
Plains Reedgrass
speciesCalamagrostis montanensis
Holm's Small-reedgrass
speciesCalamagrostis holmii
fire reedgrass
speciesCalamagrostis koelerioides
Calamagrostis howellii
speciesCalamagrostis howellii
One-and-a-half-flower Small-reedgrass
speciesCalamagrostis sesquiflora
purple marram
hybridCalamagrostis × baltica
Calamagrostis sachalinensis
speciesCalamagrostis sachalinensis
Jones' reedgrass
speciesCalamagrostis scopulorum
Muir's Reedgrass
speciesCalamagrostis muiriana
Cape Mendocino Reed Grass
speciesCalamagrostis foliosa
Porter's Reedgrass
speciesCalamagrostis porteri
Calamagrostis korotkyi
speciesCalamagrostis korotkyi
bolander's reed grass
speciesCalamagrostis bolanderi
Circumpolar Small-reedgrass
speciesCalamagrostis deschampsioides
Rainier Reedgrass
speciesCalamagrostis tacomensis
Calamagrostis oreophila
speciesCalamagrostis oreophila
Calamagrostis breweri
speciesCalamagrostis breweri
Calamagrostis anthoxanthoides
speciesCalamagrostis anthoxanthoides
Cain's Reedgrass
speciesCalamagrostis cainii
Calamagrostis angustifolia
speciesCalamagrostis angustifolia
Calamagrostis effusiflora
speciesCalamagrostis effusiflora
Calamagrostis decipiens
speciesCalamagrostis decipiens
Deyeuxia innominata
speciesDeyeuxia innominata
Calamagrostis brachyathera
speciesCalamagrostis brachyathera
reed bent grass
speciesCalamagrostis insperata
Calamagrostis bogotensis
speciesCalamagrostis bogotensis
Calamagrostis utsutsuensis
speciesCalamagrostis utsutsuensis
Calamagrostis carinata
speciesCalamagrostis carinata
Calamagrostis caucasica
speciesCalamagrostis caucasica
Calamagrostis hakonensis
speciesCalamagrostis hakonensis
Calamagrostis rodwayi
speciesCalamagrostis rodwayi
Garhwal Reedgrass
speciesCalamagrostis emodensis
Calamagrostis tripilifera
speciesCalamagrostis tripilifera
Calamagrostis crassiuscula
speciesCalamagrostis crassiuscula
Calamagrostis neocontracta
speciesCalamagrostis neocontracta
Calamagrostis matsumurae
speciesCalamagrostis matsumurae
Calamagrostis scabrescens
speciesCalamagrostis scabrescens
Calamagrostis longiseta
speciesCalamagrostis longiseta
Calamagrostis rivalis
speciesCalamagrostis rivalis
Where it lives
Recorded sightings
—
geo-referenced records in GBIF, from museums, herbaria and field observers.
Drag the globe to turn it. Dots are where records exist, not a range map; darker means more records.
In the old herbals & bestiaries
On the Names of Plants
Hieronymus Bock (Tragus) · 1552 · p.749
On the Names of Plants
Hieronymus Bock (Tragus) · 1552 · p.751
Herbarium Portatile, Oder Behendes Kräuter- und Gewächs-Buch: Darinn nicht allein 1363. so wol Einheimische als Außländndische Kräuter mit Lateinisch und Deutscher Benennung abgebildet, sondern auch die meisten, so in der Medicin gebräuchlich, kürtzlich erkläret werden
Panckow, Thomas · 1656 · p.55
Herbarium Portatile, Oder Behendes Kräuter- und Gewächs-Buch: Darinn nicht allein 1363. so wol Einheimische als Außländndische Kräuter mit Lateinisch und Deutscher Benennung abgebildet, sondern auch die meisten, so in der Medicin gebräuchlich, kürtzlich erkläret werden
Panckow, Thomas · 1656 · p.55
In the stacks
Searching the stacks…
Every page naming Calamagrostis in the Biodiversity Heritage Library →
This page is assembled live from iNaturalist, GBIF, Wikipedia, the Source Library and the Internet Archive. It is not yet part of the hand-edited codex. iNaturalist taxon 52713.