Flora of the Hawaiian Islands
Dicotyledon Literature for Cleome gynandra
Wagner et al., 1990, 1999; Lorence & Wagner, 2020.
   Cleomaceae Bibliography
      Cleome gynandra

Common name(s): spider plant, `ili`ohu, honohina, spider wisp, wild spider flower
General Information
DistributionSouthern US (Texas) to northern Argentina and the West Indies, sparingly naturalized in the Old World. In the Hawaiian Islands, naturalized on Kaua`i, O`ahu, Moloka`i, Lana`i, Maui, Hawai`i.

Annual herb, 5‒15 dm tall; stems unbranched to sparsely branched, glandular pubescent, hairs of several lengths, but not spiny.
Leaves petiolate, with 3‒7 oblanceolate to rhombic leaflets, 2‒7.5 cm long, 1‒3.8 cm wide, margin serrulate to denticulate; petiole 3‒9 cm long.
Inflorescences an elongate raceme, each flower subtended by a trifoliolate, sessile bract. Flowers with sepals 2.5‒6 mm long; petals white, spatulate with a long claw, 1‒2 cm long, not covering the stamens in bud; stamens 6, inserted on the gynophore 6‒22 mm above the petals, filaments 8‒22 mm long; gynophore with a visible scar in fruit.
Fruit narrowly cylindrical, 3‒11 cm long, 4‒5(‒6) mm in diameter.
Seeds numerous, suborbicular, compressed, 2‒2.3 mm in diameter, 1.2‒1.5 mm thick, testa dark brown, deeply reticulate-tuberculate.
2n = 20, 30, 32, 34, 36
David Lorence