The open plant encyclopedia
Snap a photo or search by any name to see how to care for it, where it comes from, whether it's safe, and a 3D model you can turn.
The plants people record most in your country, and ones that grow there wild.
Filter by what you want to do, shape, origin, country, care and safety.
Harmonia stebbinsii
Also called Stebbins' Madia
Harmonia stebbinsii (syn. Madia stebbinsii) is a species of flowering plant in the family Asteraceae known by the common name Stebbins' tarweed, or Stebbins' madia. It is endemic to northern California, where it is limited to the Klamath Mountains and adjacent slopes of the North Coast Ranges. It is a member of the serpentine soils plant community in these mountains, found at elevations of 1100–1600 meters. It is a rare annual herb producing a bristly stem up to about 25 centimeters tall studded with black resin glands. Its bristly leaves grow up to about 2 centimeters long and are mostly gathered near the base of the plant. The inflorescence is an array of flower heads lined with hairy, glandular, purple-tipped phyllaries. The head has a few yellow ray florets several millimeters long and yellow disc florets. The fruit is an achene tipped with a pappus.
This representative of the tarweed group is an endangered endemic to California, and characteristically associated with shallow, rocky, serpentine soils. It was formerly considered by the California Native Plant Society to be a species of special concern, based on rare plant surveys conducted by US Forest Service botanists over the past 25 years. However, the plant has most recently been placed on the California Rare Plant Rank 1B.2. It is only found in the narrow geographical range of Lake, Shasta, Tehama, and Trinity counties of California's Klamath Mountain Ecoregion. Occurrences outside of this range have not been documented.
Serpentine tarweed · Tarweed · Hall's madia · Nodding madia · Harmonia Tarweeds
Text excerpted from the Wikipedia article Harmonia stebbinsii by its contributors, under CC BY-SA 4.0; the excerpts are shared under the same licence.
Life form, climate and native range: World Checklist of Vascular Plants, Royal Botanic Gardens, Kew (CC BY 3.0), reformatted; see Plants of the World Online.
