Arnaldoa Explained

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

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 and the pappus-tufted fruits are adapted for wind dispersal. 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)

Notes and 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. http://www.tropicos.org/Name/40019688 Tropicos, Arnaldoa Cabrera
3. https://archive.today/20141107211354/http://dixon.iplantcollaborative.org/CompositaeWeb/default.aspx?Page=NameDetails&TabNum=0&NameId=C504F365-10A0-4BE1-AF97-C81FD4E045F2 Flann, C (ed) 2009+ Global Compositae Checklist