Key to Pontederiaceae
View taxon page for Pontederiaceae
Jepson Manual glossary definitions can be seen by moving your cursor over words underlined with dots.
1. Plant generally free-floating;
petiole Leaf stalk, connecting leaf blade to stem; sometimes more or less indistinct.
inflated or not;
inflorescence few- to many-flowered
..... EICHHORNIA 1' Plant generally
submersed,
emergent, or on wet ground; petiole not inflated; inflorescence generally 1- or few-flowered
2. Inflorescence generally 1-flowered;
stamens 3;
perianth salverform Having a slender tube and an abruptly spreading, flat limb; often applied to a fused corolla.
,
tube > 1 cm
..... HETERANTHERA 2' Inflorescence few-flowered; stamens 6; perianth bell-shaped to
rotate Wheel-shaped, spreading, or saucer-shaped; often applied to a fused corolla with a short or nonexistent tube and a spreading limb.
, tube < 1 cm
..... MONOCHORIA
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