Flora of the Hawaiian Islands
Dicotyledon Literature for Emilia fosbergii
Wagner et al., 1990, 1999; Lorence & Wagner, 2020.
   Asteraceae -- The Sunflower Family Bibliography
      Emilia fosbergii

Common name(s): pualele (Ni`ihau)
General Information
DistributionPlace of origin unknown, probably an allotetraploid hybrid between E. coccinea and E. sonchifolia in tropical Asia, now a pantropical weed.In the Hawaiian Islands, naturalized on Kure, Ni`ihau, Kaua`i, O`ahu, Moloka`i, Lana`i, Maui, Kaho`olawe, Hawai`i.
















Habit
Annual herb, 20–100 cm tall, glabrous or sparsely arachnoid-villous proximally; stems 1, often somewhat lax, simple or branched.
Leaves
Leaves ± equally distributed, sessile and auriculate to winged-petiolate and clasping; blade oblanceolate to pandurate, mostly 5–10 cm long, 3–5 cm wide (distal ones smaller, bractlike), margin entire, coarsely dentate, or weakly lobed.
Flowers
Heads with campanulate to cylindric involucres, 9–14 mm, relatively thick, length 1.5–2(–3) times diameter, involucral bracts usually 8 or 13; florets usually 50–60+, surpassing involucres by 2–4 mm, corollas pinkish, purplish, or reddish, lobes mostly 1–1.7 mm; style appendages ca. 0.2 mm.
Chromosomes
2n = 20.
Contributor
Nancy Khan