Plants › Jointfir Family

Clapweed

Ephedra antisyphilitica

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

All photos25

25 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.

See all photos Add a photo

Photos you add are credited to you, and you keep the copyright.

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 Texas.

United States	991
Texas	890
Oklahoma	93
Mexico	47
San Luis Potosi	21
Coahuila de Zaragoza	8
Nuevo Leon	7
Zacatecas	7
New Mexico	6
Durango	2

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

Traits

Group and habits

Medicinal useListed as having medicinal use by a harvested source. This is not medical advice.Kew World Checklist of Useful Plant Species
Shrub growth formListed by a harvested source as having a shrub or bush growth form.USDA PLANTS Characteristics
Perennial plantListed by a harvested source as having a perennial life duration.USDA PLANTS Characteristics

Edibility, toxicity and medicinal traits are records from datasets, not advice. Never eat, handle or use a wild species on the strength of an app.

Classification

Kingdom	Plants · Plantae
Phylum	Vascular Plants · Tracheophyta
Class	gnetophytes · Gnetopsida
Order	jointfirs · Ephedrales
Family	Jointfir Family · Ephedraceae
Genus	Jointfirs · Ephedra

Sources

Names, taxonomy and observation counts: www.inaturalist.org
Photos and recordings: the creator and source are on each one.
Traits: Kew World Checklist of Useful Plant Species (CC BY 4.0)
Traits: USDA PLANTS Characteristics (U.S. Government work / public domain)
How much to rely on each source

Remember the name next time.

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

Create a free account How it works