If you are trying to find the common name for Datura stramonium, the answer most often used is jimsonweed. The plant is also called thorn apple, devil’s trumpet, and several regional names. This guide explains how to check the name, distinguish the plant from look-alikes, and handle identification safely. No special equipment is needed to look up its name, but do not taste or handle an unknown plant: all parts of D. stramonium are poisonous.
What You’ll Need
- The scientific name, spelled Datura stramonium, for a reliable reference search.
- A regional flora, university extension resource, herbarium database, or other reputable botanical source.
- If identifying a plant outdoors, clear photographs of its leaves, flowers, fruit, and overall growth, taken without touching it.
Step-by-Step
- Start with the scientific name. Search for Datura stramonium, not just “datura.” The genus includes several species, and common names can be shared or applied inconsistently. Keep the scientific name in italics when writing it; capitalize Datura and use lowercase for stramonium.
- Use jimsonweed as the main common name. Jimsonweed is a widely recognized English common name for D. stramonium. You may also see “jimson weed” written as two words. Both forms refer to the same species in many references, though local naming practices can differ.
- Check other names as alternatives, not separate species. Thorn apple and devil’s trumpet are also used for this plant. “Thorn apple” describes its spiny fruit, while “devil’s trumpet” refers to its trumpet-shaped flowers. These names can also be used loosely for other plants, so they are less precise on their own.
- Confirm the name in a reliable source. Look up the scientific name in a regional flora, botanical garden resource, university extension publication, or herbarium database. Check that the entry lists the common name alongside the scientific name, and note the source’s region and date if available.
- Check whether the source means the same species. Read the full scientific name rather than matching only “Datura” or “thorn apple.” Some references discuss the genus generally, and common names such as angel’s trumpet may refer to other species or even a different genus. Do not assume two plants are identical because one label overlaps.
- If you are identifying a living plant, compare several features. Jimsonweed is generally an upright, branching annual with large, irregularly toothed leaves, conspicuous trumpet-shaped flowers, and a rounded fruit covered in sharp spines. Flower color and size can vary. Compare the whole plant with a regional identification guide; one feature or a photograph alone may not be enough for a confident identification.
- Record both names in notes or labels. Write “jimsonweed (Datura stramonium)” the first time you mention it. This makes the identification clearer across regions and avoids confusion with plants that share a common name. If identification is uncertain, label it “unidentified Datura” or seek expert confirmation rather than presenting a guess as fact.
- Keep safety separate from naming. The common name does not indicate that a plant is safe to use. D. stramonium contains toxic tropane alkaloids; ingestion can cause severe poisoning and may be fatal. Do not eat, brew, smoke, or use it as a home remedy. Avoid unnecessary contact, and keep it away from children and animals.
Common Mistakes
- Treating one common name as universal. Names vary by country, region, and source. Use the scientific name whenever exact identification matters.
- Assuming “thorn apple” identifies only this species. The label may be used for related plants or other spiny-fruited species. Verify the Latin name.
- Confusing devil’s trumpet with angel’s trumpet. These names are not interchangeable. Angel’s trumpet commonly refers to Brugmansia, a different genus; “devil’s trumpet” is used for Datura, but common-name usage is not perfectly consistent.
- Identifying it from a flower alone. Flower shape can suggest the genus, but reliable identification should also consider leaves, fruit, growth habit, location, and a trustworthy local guide.
- Handling or tasting a plant to confirm it. Never use taste, smell, or a home experiment as an identification test. The plant is poisonous.
- Assuming a common name signals a safe traditional use. A name or historical use is not a safety endorsement. Do not prepare or consume the plant.
Tips
- Search the full scientific name in quotation marks if you need a quick check, then confirm it in a botanical or institutional source.
- Use the plant’s region when consulting a field guide; local common names and look-alikes differ.
- For a photo-based identification request, include the whole plant and separate images of leaves, flowers, and mature fruit. Do not pick parts to photograph them.
- When writing for a general audience, give the common name and scientific name together on first mention. This is clearer than relying on a regional name alone.
- If a plant is growing where children or pets could reach it, keep them away and contact a local authority or qualified plant professional for safe management advice. Avoid handling or disposing of it casually.
Troubleshooting
Search results show different common names: This is normal. Compare the scientific name in each result and prioritize regional botanical references or herbarium records. Mention the main name, jimsonweed, and note alternatives such as thorn apple if helpful.
The source gives only “Datura”: That names the genus, not necessarily the species. Check whether it identifies D. stramonium specifically. If it does not, do not assume its common name applies to this species.
The plant resembles jimsonweed but you are unsure: Do not touch or use it. Take photographs from a safe distance, record the location, and ask a local university extension office, botanist, or plant-identification service. A photo may not support a definitive identification.
Someone may have swallowed part of the plant: Treat this as a possible poisoning emergency. Call emergency services or your local poison center immediately; do not wait for symptoms and do not induce vomiting unless a medical professional directs you to do so. Keep a photograph or safe description available, but do not delay getting help.
Frequently Asked Questions
What is the most common name for Datura stramonium?
Jimsonweed is one of the most widely recognized English names. Spelling and regional usage vary.
Is jimsonweed the same as thorn apple?
Thorn apple is often used for D. stramonium, referring to its spiny fruit, but the name can be applied more broadly. Check the scientific name.
Is devil’s trumpet the same as angel’s trumpet?
No. Devil’s trumpet commonly refers to Datura, including D. stramonium; angel’s trumpet usually refers to plants in the genus Brugmansia.
How can I tell whether a plant is Datura stramonium?
Look for a combination of branching annual growth, toothed leaves, trumpet-shaped flowers, and spiny round fruit, then verify with a regional botanical guide or expert. Do not identify it by tasting or handling it.
Is jimsonweed poisonous?
Yes. All parts of D. stramonium can be toxic, and ingestion can cause severe or fatal poisoning. Do not consume it or use it as a remedy.
Why do references use different names?
Common names develop locally and may be shared among related plants. The scientific name is the clearest way to refer to this exact species.