Present on Pacific Islands? yes
Primarily a threat at high elevations? no
Common name(s): [more details]
English: Brazilian wild petunia
Description: "Perennial herb; main stem sprawling, side branches ±erect, to 18 inches tall, pubescent. Leaves shortly petiolate; blades broadly lanceolate to elliptic, to 3 inches long, upper side green with silvery white along veins, underside purplish. Flowers solitary, axillary; calyx lobes linear, margins ciliate; corolla to 1.75 inches long, white streaked with purple or lilac, tube narrow at base, flaring into throat, lobes notched apically" (Staples & Herbst, 2005; p. 91).
"Perennial herb to 18" tall, with opposite 3" leaves having silvery veins above and purple undersides, 1.5-2" tubular white flowers streaked with purple, and 1/2-3/4 in. club-shaped fruits"(Hawaii's Most Invasive Horticultural Plants).
Habitat/ecology: Moist forests(Hawaii's Most Invasive Horticultural Plants)
Native range: Brazil (Lorence et al, 1995; p. 20).
Cited status &
Cited as invasive &
Cited as cultivated &
Cited as aboriginal introduction?
State of Hawaii
Lorence, David H./Flynn, Timothy W./Wagner, Warren L. (1995) (p. 20)
Voucher cited: T. Flynn et al. 3524 (BH, BISH, MO, NA, NY, PTBG, US)
Control: If you know of control methods for Ruellia devosiana, please let us know.