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Higher Taxonomy
Family: PontederiaceaeView DescriptionDichotomous Key

Habit: Annual, perennial herb, submersed, emergent, floating, or on wet ground. Leaf: simple, alternate or whorled, +- in basal rosette or not; blade linear (especially underwater) to round, sometimes sagittate or cordate, base generally sheathing, veins parallel; petiole inflated or not. Inflorescence: raceme, spike, panicle, or 1-flowered, terminal but often appearing +- axillary, subtended by sheathing bract. Flower: bisexual, radial or +- bilateral; perianth lobes 6 (in 2 series) [3,4], petal-like; stamens 3, 6 (in 2 series) [1,4], from various levels on perianth tube, equal or not, sometimes 3 sterile, modified; ovary superior, 1 or 3-chambered. Fruit: many-seeded, loculicidal capsule [1-seeded utricle]. Seed: < 1 cm, longitudinally ribbed [or not].
Genera In Family: +- 6 genera, 30 species: most pantropical, some temperate. Note: Some cultivated as orns, some weeds, especially in rice fields. Pontederia cordata L. establishes from garden waste.
eFlora Treatment Author: Charles N. Horn & Elizabeth McClintock
Scientific Editor: Thomas J. Rosatti.

Habit: Annual [perennial herb], generally emergent. Stem: +- erect, stout [elongate]. Leaf: in basal rosettes; blade ovate to narrowly lanceolate; petiole not inflated, generally > blade. Inflorescence: raceme, reflexed after flower. Flower: +- radial; perianth bell-shaped to rotate, tube < 1 cm, parts 6, nearly free; stamens 6, 1 generally > others; ovary 3-chambered.
Species In Genus: 6 species: tropical Africa, Asia, northeastern Australia. Etymology: (Greek: 1 apart, from 1 stamen > others)
eFlora Treatment Author: Charles N. Horn & Elizabeth McClintock
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Citation for this treatment: Charles N. Horn & Elizabeth McClintock 2016. Monochoria, in Jepson Flora Project (eds.) Jepson eFlora,, accessed on October 20, 2016.

Citation for the whole project: Jepson Flora Project (eds.) 2016. Jepson eFlora,, accessed on October 20, 2016.