Arnaldoa

Arnaldoa is a genus of flowering plants in the aster family, Asteraceae. It is native to Ecuador and Peru.[1][2]

Arnaldoa
Arnaldoa macbrideana
Scientific classification
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Clade: Asterids
Order: Asterales
Family: Asteraceae
Subfamily: Barnadesioideae
Tribe: Barnadesieae
Genus: Arnaldoa
Cabrera
Type species
Arnaldoa magnifica (syn of A. weberbaueri)

These plants are shrubs with spines located at the attachment point of each leaf to the stem. The flower heads contain disc florets in shades of orange, orange-red, purple, or cream. The plants grow on dry, wooded or shrubby slopes at elevations between 1370 and 3000 metres.[1]

Species[3]
  • Arnaldoa argentea C.Ulloa, P.Jørg. & M.O.Dillon – up to 3.5 meters tall with light orange or cream-colored florets (Ecuador)
  • Arnaldoa coccinosantha (Muschl.) Ferreyra - Peru
  • Arnaldoa macbrideana Ferreyra – purple florets (Peru)
  • Arnaldoa weberbaueri (Muschl.) Ferreyra – bright orange-red or occasionally purple florets up to 5 centimeters long (Peru)

References
  1. Ulloa, C. U., et al. (2002). Arnaldoa argentea (Barnadesioideae: Asteraceae), a new species and a new generic record for Ecuador. Novon 12 415-419.
  2. Tropicos, Arnaldoa Cabrera
  3. Flann, C (ed) 2009+ Global Compositae Checklist


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