|Tapeinochilos ananassae of the family Costaceae|
Costaceae, or the Costus family, is a family of pantropical monocots. It belongs to the order Zingiberales, which contains other horticulturally and economically important plants such as the banana (Musaceae), bird-of-paradise (Strelitziaceae), and edible ginger (Zingiberaceae). The seven genera in Costaceae together contain about 100 species (1 in Monocostus, 2 in Dimerocostus, 16 in Tapeinochilos, 2 in Paracostus, ca. 8 in Chamaecostus, ca. 5 in Hellenia, and ca. 80 in Costus). They are native to tropical climates of Asia, Africa, Central America, and South America. Several species are frequently found in cultivation.
Costaceae is different from the other families of Zingiberales in that its species have 5 fused staminodes, rather than 2 or 3, and the Costaceae contain no aromatic oils. The fused infertile stamens form a large petaloid labellum that often functions to attract pollinators. The flowers are solitary in Monocostus. In the other genera, the flowers are borne in a terminal spike that ranges from elongate to nearly capitate. Each flower is subtended by a large bract. The fruit is a berry or capsule. The rhizome is fleshy with tuberous roots.
- Angiosperm Phylogeny Group (2009). "An update of the Angiosperm Phylogeny Group classification for the orders and families of flowering plants: APG III" (PDF). Botanical Journal of the Linnean Society 161 (2): 105–121. doi:10.1111/j.1095-8339.2009.00996.x. Retrieved 2013-06-26.
- Chelsea D. Specht & Dennis Wm. Stevenson. 2006. "A new phylogeny-based generic classification of Costaceae (Zingiberales)".Taxon 55(1):153-163. (See External links below).
- Classification of Costaceae
- Hellenia, the correct name for Cheilocostus At volume 151 At Online Content At Phytotaxa
- Distribution Map And Genus list At Costaceae At Zingiberales At: Trees At: APweb At: botanical databases At: About Science & Conservation At: Missouri Botanical Garden
- The Families of Flowering Plants by L. Watson and M. J. Dallwitz.
- Family Costaceae