Plants › Sedges

Blunt Spikerush

Eleocharis obtusa

Wildlife study photograph from iNaturalist. — (c) astorey_botany, some rights reserved (CC BY-NC)

All photos28

28 photos

Study shows up to four per card, from different observers, so you learn the species rather than one picture. Heart the good ones and swap any you do not like.

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Easily confused with

Study checks a spoken answer against these, and tells you which one you named.

Where it is recorded

Records by month in Ontario.

United States	9,131
Canada	2,093
Ontario	1,111
New York	960
Mississippi	517
Michigan	506
Quebec	505
Virginia	487
North Carolina	471
Wisconsin	392

Counts show where people looked, not only where it lives.

Traits

Group and habits

Grass-like growth formListed by a harvested source as having a graminoid or grass-like growth form.USDA PLANTS Characteristics
Wetland-associatedListed by a harvested source as obligate or frequent in wetland habitat.USDA PLANTS Characteristics
Annual plantListed by a harvested source as having an annual life duration.USDA PLANTS Characteristics
Perennial plantListed by a harvested source as having a perennial life duration.USDA PLANTS Characteristics

Classification

Kingdom	Plants · Plantae
Phylum	Vascular Plants · Tracheophyta
Class	monocots · Liliopsida
Order	grasses, sedges, cattails, and allies · Poales
Family	Sedges · Cyperaceae
Genus	spikerushes · Eleocharis

Study it in a deck

Or build your own from the species near you.

Sources

Names, taxonomy and observation counts: www.inaturalist.org
Photos and recordings: the creator and source are on each one.
Traits: USDA PLANTS Characteristics (U.S. Government work / public domain)
How much to rely on each source

Remember the name next time.

Practise Blunt Spikerush with real photos from different observers. Say the name out loud, and it comes back just before you would forget it.

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