Asteraceae — Daisy Family
Omalotheca sylvatica (L.) Sch.Bip. & F.W.Schultz
Omalotheca sylvatica (L.) Sch.Bip. & F.W.Schultz
Omalotheca sylvatica is a perennial herb with specific leaf and flower traits, flowering from July to September.
Oncosiphon pilulifer (L.fil.) Källersjö
Oncosiphon pilulifer (L.fil.) Källersjö
Oncosiphon pilulifer, or globe chamomile, is a strong-scented annual native to southern Africa that can cause allergic reactions.
Onopordum acanthium L.
Onopordum acanthium L.
Onopordum acanthium (cotton/Scotch thistle) is a spiny Eurasian biennial thistle introduced to North America, with ornamental and historical medicinal uses.
Onopordum illyricum L.
Onopordum illyricum L.
Onopordum illyricum, the Illyrian thistle, is a biennial noxious weed thistle native to southwestern Europe.
Onopordum nervosum Boiss.
Onopordum nervosum Boiss.
Onopordum nervosum is a native Iberian flowering thistle that holds the Royal Horticultural Society's Award of Garden Merit.
Oreochrysum parryi (A.Gray) Rydb.
Oreochrysum parryi (A.Gray) Rydb.
Oreochrysum parryi, Parry's goldenrod, is the only species in the Asteraceae genus Oreochrysum, native to western North America.
Oreostemma alpigenum (Torr. & A.Gray) Greene
Oreostemma alpigenum (Torr. & A.Gray) Greene
Oreostemma alpigenum is a perennial/subshrub in Asteraceae from western US mountains, commonly called tundra aster or Anderson's mountain crown.
Osmadenia tenella Nutt.
Osmadenia tenella Nutt.
Osmadenia tenella Nutt. is an uncommon aromatic annual herb native to chaparral and woodland habitats of California and Baja California.
Osteospermum calendulaceum L.fil.
Osteospermum calendulaceum L.fil.
Osteospermum calendulaceum is an Asteraceae species native to southern Africa that is an agricultural weed in parts of Australia.
Osteospermum moniliferum L.
Osteospermum moniliferum L.
Osteospermum moniliferum, or boneseed, is an Asteraceae shrub native to southern Africa with distinct subspecies ranges.
Ozothamnus diosmifolius (Vent.) DC.
Ozothamnus diosmifolius (Vent.) DC.
Ozothamnus diosmifolius (rice flower) is an Australian woody shrub widely cultivated as a cut flower.
Ozothamnus ferrugineus (Labill.) Sweet
Ozothamnus ferrugineus (Labill.) Sweet
Ozothamnus ferrugineus is an aromatic woody shrub widespread in south-eastern Australian open forests and scrub.
Ozothamnus leptophyllus (G.Forst.) Breitw. & J.M.Ward
Ozothamnus leptophyllus (G.Forst.) Breitw. & J.M.Ward
Ozothamnus leptophyllus is a common non-threatened dicot shrub endemic to New Zealand with potential scientific uses. It is used for revegetation.
Ozothamnus obcordatus DC.
Ozothamnus obcordatus DC.
Ozothamnus obcordatus, the grey everlasting, is an Australian Asteraceae shrub with potential for commercial cut flower production.
Ozothamnus vauvilliersii Hombr. & Jacq.
Ozothamnus vauvilliersii Hombr. & Jacq.
Ozothamnus vauvilliersii is an evergreen New Zealand shrub with yellowish-white leaves and many small white flowers.
Packera anonyma (Alph.Wood) W.A.Weber & Á.Löve
Packera anonyma (Alph.Wood) W.A.Weber & Á.Löve
Packera anonyma is a yellow-flowered perennial herb native to eastern and southeastern United States.
Packera aurea (L.) Á.Löve & D.Löve
Packera aurea (L.) Á.Löve & D.Löve
Packera aurea is a perennial aster native to eastern North America, historically used for reproductive conditions but now rarely used due to toxic alkaloids.
Packera bolanderi (A.Gray) W.A.Weber & Á.Löve
Packera bolanderi (A.Gray) W.A.Weber & Á.Löve
Packera bolanderi (Bolander's/seacoast ragwort) is an aster-family perennial herb native to the wet coastal forests of the US west coast.
Packera cana (Hook.) W.A.Weber & Á.Löve
Packera cana (Hook.) W.A.Weber & Á.Löve
Packera cana, or woolly groundsel, is an aster-family flowering plant native to western and central North America.
Packera dubia (Spreng.) Trock & Mabb.
Packera dubia (Spreng.) Trock & Mabb.
Packera dubia is a low-growing perennial aster native to central and southeastern US coastal areas, with stable populations.
Packera fendleri (A.Gray) W.A.Weber & Á.Löve
Packera fendleri (A.Gray) W.A.Weber & Á.Löve
Packera fendleri, or Fendler's ragwort, is a perennial flowering plant in the Asteraceae family native to the southern Rocky Mountains.
Packera glabella (Poir.) C.Jeffrey
Packera glabella (Poir.) C.Jeffrey
Packera glabella is a United States native winter annual weed that acts as an invasive toxic species in agricultural and disturbed moist habitats.
Packera macounii (Greene) W.A.Weber & Á.Löve
Packera macounii (Greene) W.A.Weber & Á.Löve
Packera macounii, or Siskiyou Mountains ragwort, is an aster-family perennial flowering plant native to North America's west coast.
Packera multilobata (Torr. & A.Gray ex A.Gray) W.A.Weber & Á.Löve
Packera multilobata (Torr. & A.Gray ex A.Gray) W.A.Weber & Á.Löve
Packera multilobata, or lobeleaf groundsel, is an aster family flowering plant native to the western US, with parts used medicinally by some Native American groups.
Related Families
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