Contains 4 accepted taxa overall.

Characteristics
Mecardonia Ruiz & Pav.
MECARDONIA
Classification
LAMIALES
Mecardonia
Citation
MECARDONIA Ruiz Lopez & Pavon, Fl. Peruv. Prodr. 95. 1794.
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TYPE: Mecardonia ovata Ruiz Lopez & Pavon
Species
Scientific Name Common Name Herbarium Specimens Status Photos
Mecardonia acuminata subsp. acuminata AXILFLOWER Native FACW (NWPL) FACW (DEP)
Mecardonia acuminata subsp. microphyla AXILFLOWER Native FACW (NWPL) FACW (DEP)
Mecardonia acuminata subsp. peninsularis AXILFLOWER Native Endemic FACW (NWPL) FACW (DEP)
Mecardonia procumbens BABY JUMPUP Native OBL (NWPL) FACW (DEP)
[Family identification key]
1.  Stems prostrate to decumbent, often mat-forming; leaves 2-3 times longer than wide; corolla yellow with darker veins; seed radial wall reticulum mamillate
1.  Stems erect; leaves 3.2-7 times longer than wide; corolla white with darker veins; seed radial wall reticulum smooth
2
2.  Branched at the plant base; larger leaves 10-20(25) mm long
2.  Branched above the plant base; larger leaves 20-30 mm long
3
3.  Flowering pedicels 10-18 mm long, fruiting pedicels 17-35 mm long
3.  Flowering pedicels 4-10 mm long, fruiting pedicels 10-18 mm long
Genus Synonyms
Synonym Full Citation Basionym Type
Pagesia Pagesia Rafinesque, Fl. Ludov. 48. 1847. TYPE: Pagesia leucantha Rafinesque