The Endemic Plants of Chile

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Brassicaceae

Schizopetalon arcuatum Al-Shehbaz

Place of Publication

Harvard Pap. Bot. 1(1): 34 (1989)

Type citation

Chile. Prov. Atacama: Dept. Freirina, Camino a Carrizalillo por Quebrada Chañaral, 4 km SE de la junta del camino El Morado, 350 m, 28°57’S, 71°17’W, 23 Oct. 1971, C. Marticorena, R. Rodríguez & E. Weldt 1803 (holotype, OS!; isotype, CONC!, F!)

References

  • Al-Shehbaz (1989)

    Al-Shehbaz, I.A. 1989. Systematic and phylogeny of Schizopetalon (Brassicaceae). Harvard Papers Botany 1(1): 10-46.

Iconography

  • Al-Shehbaz (1989): figs. 2c; 3e.f

Regions

Atacama

Distribution and habitat

Coastal dunes, including sandy dry inland gullies of northern locations of Huasco to southern Carrizalillo (Region Atacama).

Distribution

Classic Locations

  • Schizopetalon arcuatum Al-Shehbaz
    • Schizopetalon arcuatum Al-Shehbaz
      • Schizopetalon arcuatum Al-Shehbaz
        • Schizopetalon arcuatum Al-Shehbaz
          • Schizopetalon arcuatum Al-Shehbaz
            • Schizopetalon arcuatum Al-Shehbaz
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Descriptions

  • Al-Shehbaz (1989)
  • Toro et al. (2018)

Habit

Annual herb with stems from 7-25 cm tall.

Key characteristics

This species resembles S. tenuifolium however, it differs in having a bracteate inflorescences throughout, stout fruiting pedicels 3-5(-6.5) mm long, obsolete or very short styles to 0.6 mm long, and undivided leaf lobes 1-3 mm broad. S. arcuatum has been confused with S. biseriatum and S. marìtimum but is easily distinguished by having strongly arcuate fruits and inflorescences (Al-Shehbaz, 1988)

Notes

Seed of this species is banked by the national seed bank of Chile, INIA.