Plants › St. John's wort family
St. Peter's-wort
Hypericum crux-andreae
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.
Photos you add are credited to you, and you keep the copyright.
Easily confused with
fourpetal St. JohnswortHypericum tetrapetalum
St. Andrew's crossHypericum hypericoides
low St. John's wortHypericum stragulum
Common St. John's WortHypericum perforatum
Pineland St. JohnswortHypericum suffruticosum
Arcadian St. John's WortHypericum edisonianum
Study checks a spoken answer against these, and tells you which one you named.
Where it is recorded
| United States | 1,976 |
|---|---|
| Alabama | 273 |
| North Carolina | 215 |
| Mississippi | 213 |
| Texas | 191 |
| Louisiana | 187 |
| Georgia | 145 |
| South Carolina | 133 |
| Arkansas | 53 |
| Virginia | 49 |
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
- Subshrub growth formListed by a harvested source as having a subshrub growth form.USDA PLANTS Characteristics
- Wetland-associatedListed by a harvested source as obligate or frequent in wetland habitat.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 | Dicots · Magnoliopsida |
| Order | Nances, Willows, and Allies · Malpighiales |
| Family | St. John's wort family · Hypericaceae |
| Genus | St. John's worts · Hypericum |
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: 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 St. Peter's-wort with real photos from different observers. Say the name out loud, and it comes back just before you would forget it.