The Endemic Plants of Chile

Place of Publication

Chaetanthera and Oriastrum: 149 (2010)

Type citation

Based on Chaetanthera microphylla (Cass.) Hook. & Arn. var. depauperata Hook. & Arn., “Cordilleras, Cuming 241” (Holotype in OXF. Isotype in BM, E [x2], GH, P)

Synonyms

• Chaetanthera diffusa Poepp. ex sched.
• Chaetanthera leptocephala Cabrera
• Chaetanthera linifolia Less. var.  depauperata
• Chaetanthera microphylla (Cass.) Hook. & Arn. var.  depauperata

References

• Davies (2010)

  Davies, A.M.R. 2010. Chaetanthera and Oriastrum. A systematic revision of Chaetanthera Ruiz and Pav. and the reinstatement of Oriastrum Poepp. and Endl. (Asteraceae: Mutisieae). Alemania: Südwestdeutscher Verlag für Hochschriften

Regions

Atacama, Coquimbo, Valparaíso and Metropolitana

Distribution and habitat

It occurs in the Andes, between the provinces of Copiapó and Cordillera (28 °-34 ° lat. S), between 700-2900 above sea-level. It forms scattered populations on sandy slopes and flowers from August to March.

Distribution

• Chaetanthera depauperata (Hook. & Arn.) A.M.R.Davies
• • Chaetanthera depauperata (Hook. & Arn.) A.M.R.Davies
  • • Chaetanthera depauperata (Hook. & Arn.) A.M.R.Davies
    • • Chaetanthera depauperata (Hook. & Arn.) A.M.R.Davies
      • • Chaetanthera depauperata (Hook. & Arn.) A.M.R.Davies
        • • Chaetanthera depauperata (Hook. & Arn.) A.M.R.Davies
          • • Chaetanthera depauperata (Hook. & Arn.) A.M.R.Davies
            • • Chaetanthera depauperata (Hook. & Arn.) A.M.R.Davies
              • • Chaetanthera depauperata (Hook. & Arn.) A.M.R.Davies
                • • Chaetanthera depauperata (Hook. & Arn.) A.M.R.Davies
                  • • Chaetanthera depauperata (Hook. & Arn.) A.M.R.Davies
                    • • Chaetanthera depauperata (Hook. & Arn.) A.M.R.Davies
                      • • Chaetanthera depauperata (Hook. & Arn.) A.M.R.Davies
                        • • Chaetanthera depauperata (Hook. & Arn.) A.M.R.Davies
                          • • Chaetanthera depauperata (Hook. & Arn.) A.M.R.Davies
                            • • Chaetanthera depauperata (Hook. & Arn.) A.M.R.Davies
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Habit

​Annual herb spreading up to 6 cm wide

Key characteristics

This belongs to a group of species with linear leaves, which also includes Chaetanthera albiflora, C. linearis, C. microphylla and C. perpusilla. This species can be differentiated by its glaucous leaves, white flowers, translucent trichomes on the surface of the leaf, acute and reflective bracts and its narrow, cylindrical chapitula with less than 20 bracts (Davies 2010).