Spathiphyllum species: Peace lily

Family

Araceae

Common Names

Peace lily

Plant Description

Originating in tropical America and Malaysia, the 36 species of Spathiphyllum are evergreen, rhizomatous perennials that have become universally popular as house and garden plants. The plants are favored for their lush, dark green oval leaves that stand erect or arched, and for the beautiful white, cream, or green flowers carried on long stems above the foliage. The inflorescence consists of a spathe, the true minute flowers are densely arranged on the central spadix, that is surrounded by a large white, cream-colored, or all green spathe (Fig. 375 and Fig. 376).

Figure 375. Spathiphyllum species.

Figure 376. Spathiphyllum "Mauna Loa".

Toxic Principle and Mechanism of Action

Like other members of the Araceae, Spathiphyllum species contain oxalate crystals within the stems and leaves [1,2]. (See Dieffenbachia spp.)

Risk Assessment

Peace lilies are commonly grown as house plants, and as such pose a risk to household pets that chew on the stems and leaves.

Clinical Signs

Animals that chew on or consume leaves of Spathiphyllum species can experience the irritant effects of the oxalates causing excessive salvation and vomiting.

Treatment

Unless salvation and vomiting are excessive, treatment is seldom necessary. The plant should be removed or made inaccessible to the pets that are eating the plant.