Flora of the Hawaiian Islands
Dicotyledon Literature for Gunnera petaloïdea
Wagner et al., 1990, 1999.
   Gunneraceae -- The Gunnera Family Bibliography
      Gunnera petaloïdea

Common name(s): `ape, `ape`ape, haha
General Information
DistributionIn the Hawaiian Islands, endemic to Kaua`i, O`ahu, Moloka`i, Maui, Hawai`i.
















Click here for detailed USGS map by Jonathan Price
Habit
Giant herbs 1-6 m tall.
Leaves
Leaves dark green on upper surface, lower surface pale green, cordate-reniform, not peltate, ca. 4-10 dm long, ca. 2-9 dm wide, upper surface glabrous to very sparsely hirsute, lower surface brownish tomentose when young, sparsely to densely hirsute on the raised reticulate veins, 7-11-lobed and margins usually crenate-dentate, sometimes crenate or denticulate, basal sinus V-shaped to U-shaped, petioles 2-10 dm long, pustulate and usually densely hirsute at base, more sparsely hirsute toward blade, scales elliptic to lanceolate or oblanceolate, 1.5-10 cm long, scurfy hirsute, becoming glabrate.
Flowers
Flowers perfect or unisexual, both staminate and pistillate flowers intermingled with perfect ones and scattered throughout the inflorescence, in numerous spikes arranged along an elongated central axis 2-10.5 dm long, each spike subtended by an oblong, oblong-spatulate to rarely narrowly lanceolate bract 8-35 mm long, margins lacerate and usually ciliate; calyx deltate to ovate or ovate-elliptic, sometimes broadly lanceolate, 0.4-1.3(-2) mm long, margins lacerate and sometimes ciliate; petals greenish to occasionally rose magenta, obovate, strongly concave, 0.8-2.2 mm long.
Fruit
Fruit yellow to orange, subglobose, 2.5-4 mm in diameter.
Seeds
Seeds 1.5-1.9 mm long, somewhat compressed, 4-angled, 1 of the angles obscure, 1 inconspicuous, the other 2 prominent.