Jepson Flora Project: Jepson Interchange    

 
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Jepson Interchange (more information)
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COMMELINACEAE

SPIDERWORT FAMILY

Elizabeth McClintock

Annual, perennial herb, generally glabrous
Stem prostrate to erect or climbing; nodes often rooting
Leaves alternate, entire, simple, linear to ovate, with closed basal sheath or lower leaf clasping stem
Inflorescence: generally cyme or umbel, axillary
Flower generally bisexual, bilateral or radial, generally insect-pollinated; sepals 3, generally green; petals 3, blue, white, or sometimes rose or purple, generally ephemeral; stamens 6 (3 sometimes sterile), filaments generally slender, often hairy; ovary superior, chambers 3
Fruit: generally capsule
Seeds few
Genera in family: ± 50 genera, 700 species: especially tropical, subtropical; some cultivated as ornamental.

COMMELINA

DAYFLOWER

Perennial
Inflorescence: cyme, subtended by boat-shaped bract
Flower bilateral, generally blue, ephemeral; petals unequal, 2 large and showy; fertile stamens 3, sterile stamens 3, filaments glabrous
Species in genus: ± 150 species: tropical, warm temp regions
Etymology: (Johan, 1629–1692, and nephew Caspar, 1667–1731, Commelin, Holland)
Reference: [Maheshwari & Maheshwari 1955 Phytomorphology 5:413–422]

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