There are vining herbs, orchids, aroids, and even vining palms. Spadices are typical of the family Araceae, the arums or aroids. It can be seen in some aroids. Inflorescences are typical aroids with a spathe and spadix. Other common varieties noted in the forest are gingers, begonias, gesneriads, aroids, Ixora blooms. Some plant species included are heliconias, gingers, aroids, bromeliads, and some native Hawaiian plants. Like some other aroids it is a thermogenic plant, generating its own heat. La Selva hosts a large variety of epiphytes, epiphylls, and many climbing aroids. The species in the subfamily are true aroids. Most aroids at Leu Gardens can be found in the Tropical Stream Garden. Some of the plant species include, heliconias, gingers, aroids, bromeliads, and other native Hawaiian plants. However the highlights of the collection are the Aroids and the Philippine Jade Vine (seasonal). Aroids, orchids, bromeliads and piperaceae include in the group of epiphytic plants. Also known as the arum family, members are often colloquially known as aroids. Unlike aroids, there is no spathe (large bract, enclosing the spadix).