Achillea millefolium
species of plant
Achillea millefolium, commonly known as yarrow () or common yarrow, is a flowering plant in the family Asteraceae. Growing to 1 metre (3+1⁄3 feet) tall, it is characterized by small whitish flowers, a tall stem of fernlike leaves, and a pungent odor.
The plant is native to temperate regions of Eurasia and North America. It has been introduced as feed for livestock in New Zealand and Australia. It has some potential uses, including in traditional medicine.
Description
Achillea millefolium is an erect, herbaceous, perennial plant that produces one to several stems 0.2–1 metre (8–40 inches) in height, and has a spreading rhizomatous growth form. Cauline and more or less clasping, the leaves appear spirally and evenly along the stem, with the largest and most petiolate towards the base; they are 5–20 centimetres (2–8 in) long and fernlike, divided bipinnately or tripinnately.
The inflorescence has 4 to 9 phyllaries and contains ray and disk flowers which are white to pink, blooming from March to October. There are generally 3 to 8 ray flowers, which are 3 millimetres (1⁄8 in) long and ovate to round. The tiny disk flowers range from 10 to 40.
The public source identifies “Achillea millefolium” as species of plant. This brief keeps that definition visible, then builds a research path around Achillea, millefolium and species.
Why this record matters
A short description can identify a subject without explaining its stakes. For “Achillea millefolium”, the useful work is to connect “species of plant” to the records capable of establishing context and consequence.
The date and method of observation matter as much as the stated conclusion, especially where classification or consensus has changed. The source revision retrieved here is dated Aug 23, 2026. The linked authority identifier is Q25408. The Library of Congress control number is sh2004001004. 1 of 1 selected statements include explicit references; 0 carry qualifiers and 0 use preferred rank.
Current terminology should not be projected backward without checking the classification used when the underlying evidence was created. The lead is largely declarative, so disagreement and counter-evidence require a deliberate search beyond the opening account. Authority statements aid reconciliation but still require their own references, qualifiers and ranks to be checked.
How to read it
Check terminology, classification and the date of the cited evidence. Scientific names and technical consensus can change while older records retain historical value.
- Current terminology
- Classification context
- Finding cited technical literature
Primary datasets, specimen catalogues, standards bodies and the most recent peer-reviewed literature.
Three-step research path
- Establish the record: confirm the title “Achillea millefolium”, its source revision and the description used here.
- Expand the search: follow Achillea millefolium primary sources, Achillea millefolium archive and Achillea research across catalogues and specialist indexes.
- Test the account: compare the strongest cited source with the responsible institution’s current record and note any disagreement.
Questions for further research
- Which source most directly establishes the central claim about “Achillea millefolium”?
- Has classification or technical consensus changed since the cited source?
- Which observation, specimen, dataset or publication supports the account?
Search terms from this dossier
This entry incorporates text from “Achillea millefolium” on English Wikipedia. Contributors are listed in the page history. Text is available under the Creative Commons Attribution-ShareAlike 4.0 License. Selected authority identifiers and statements are retrieved from Wikidata under CC0; their references and qualifiers remain part of the verification path.