Question: Which of the following is a flowering plant in the mallow family: Piper or Hermannia?

Context articles: Abutilon sandwicense
Malvella leprosa
Hermannia
Abutilon fruticosum
Malva nicaeensis
Lavatera assurgentiflora
Abutilon parishii
Lavatera cretica
Sidalcea malviflora
Piper (plant)

Abutilon sandwicense, commonly known as the greenflower Indian mallow, is a species of flowering plant in the mallow family, Malvaceae, that is endemic to the island of Oʻ ahu, Hawaii, in the United States.
 It inhabits dry forests on the slopes of the Waiʻ anae Range at elevations of 400 - .
 Associated plants include lama ("Diospyros sandwicensis"), ēlama ("D. hillebrandii"), māmaki ("Pipturus albidus"), kalia ("Elaeocarpus bifidus"), āulu ("Sapindus oahuensis"), olopua ("Nestegis sandwicensis"), and alaheʻ e ("Psydrax odorata").
 Greenflower Indian mallow is a shrub, reaching a height of 1.5 - .
 It is threatened by habitat loss.
Malvella leprosa is a species of flowering plant in the mallow family known by the common names alkali mallow and alkali sida.
 It is native to much of the western United States, Mexico, Argentina, and Chile.
 It is known in parts of Australia as an introduced species.
 In many regions, whether native there or not, the plant is often a noxious weed and easily invades habitat, including areas with alkaline and saline soils.
 In California, the plant can be found in agricultural lands, including fields and orchards.
 This is a decumbent perennial herb producing a white-hairy stem up to about 40 cm long, spreading along the ground.
 The leaves are variable in shape but are generally lobed and wavy along the edges, measuring 1 to wide.
 Leaves appear in the leaf axils singly or in clusters of up to 3.
 Each flower is a cup-shaped corolla of five petals up to 1.5 cm long in shades of pale pink, white, or light yellow.
 The disc-shaped fruit is divided into several segments.
Hermannia is a genus of flowering plants in the mallow family, Malvaceae.
 It comprises at least 65 species with many more species as yet unresolved.
Abutilon fruticosum is a widespread species of flowering plant in the mallow family known by the common names Texas Indian mallow, pelotazo, and sweet Indian mallow.
 It is native to Africa, southern and southwestern Asia (from Saudi Arabia to India), northern Mexico, and the south-central United States.
Malva nicaeensis is a species of flowering plant in the mallow family known by the common names bull mallow and French mallow.
Lavatera assurgentiflora – now classified as Malva assurgentiflora, the island mallow, mission mallow, royal mallow, island tree mallow, malva rosa, is a species of flowering plant in the mallow family.
Abutilon parishii is a species of flowering plant in the mallow family known by the common names Parish's Indian mallow and Pima Indian mallow.
 It is native to Arizona in the United States and Sonora in Mexico.
Lavatera cretica (syn.
 "Malva linnaei") is a species of flowering plant in the mallow family known by the common names Cornish mallow and Cretan hollyhock.
 It is native to western Europe, North Africa, and the Mediterranean Basin, and it is naturalized in areas with a Mediterranean climate, such as parts of Australia and California.
 This is an annual or biennial herb growing a tough, somewhat hairy stem to a maximum height between 1 and 3 meters.
 The leaves are multilobed with flat or wavy edges, slightly hairy, and up to 10 centimeters long.
 The plant bears small pink or light purple flowers with petals just over a centimeter long.
 The fruit is disc-shaped with 7 to 10 segments.
Sidalcea malviflora is a species of flowering plant in the mallow family, known by the common names dwarf checkerbloom, Greek mallow, prairie mallow and dwarf checkermallow.
Piper, the pepper plants or pepper vines (a term used for certain "Clematis" in older times), are an economically and ecologically important genus in the family Piperaceae.