Harmonia (plant) explained

Harmonia is a genus of plants in the family Asteraceae. All 5 known species are endemic to the Coast Ranges of northern and central California. All but H. nutans grow on serpentine soils.^[1]

Harmonia is related to Madia, and both genera are commonly known as tarweeds. Harmonia is an annual shrub very often with bristles and sometimes with glandular hairs as well. Hears have a single series of phyllaries, subtending 3-8 fertile ray flowers plus 7-30 fertile yellow disc flowers.^{[2] [3]}

Species^{[4] [5] [6]}

• Harmonia doris-nilesiae (T.W.Nelson & J.P.Nelson) B.G.Baldwin Klamath Mts.
• Harmonia guggolziorum B.G.Baldwin - Mendocino Co, California
• Harmonia hallii (D.D.Keck) B.G.Baldwin Coast Ranges of north-central California
• Harmonia nutans (Greene) B.G.Baldwin Coast Ranges near San Francisco Bay
• Harmonia stebbinsii (T.W.Nelson & J.P.Nelson) B.G.Baldwin Klamath Mts.

Notes and References

1. http://www.efloras.org/florataxon.aspx?flora_id=1&taxon_id=316914 Flora of North America, Harmonia
2. Baldwin, B. G. 2001. Harmonia guggolziorum (Compositae–Madiinae), a new tarweed from ultramafics of southern Mendocino County, California. Madroño 48: 293–297.
3. https://www.biodiversitylibrary.org/page/641195#page/463/mode/1up B. G. Baldwin, 1999. New combinations and new genera in North American tarweeds. Novon. 9: 462-471.
4. http://dixon.iplantcollaborative.org/CompositaeWeb/Default.aspx?Page=NameSearch&searchText=Harmonia%20&searchField=NameFull Flann, C (ed) 2009+ Global Compositae Checklist
5. http://www.theplantlist.org/1.1/browse/A/Compositae/Harmonia/ The Plant List
6. http://bonap.net/NAPA/TaxonMaps/Genus/County/Harmonia Biota of North America Program 2013 county distribution maps