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Dayflower family💧
Commelinaceae
ツユクサ科
A monocot family including Commelina (dayflowers) and Tradescantia (spiderworts). Characterized by ephemeral flowers that bloom in the morning and close by midday. Mainly distributed in tropical and subtropical regions, with a history of use in cytological and genetic research.
Key Characteristics
- ●Ephemeral flowers lasting only one day
- ●3 outer tepals + 3 inner tepals (2 of which are conspicuously blue)
- ●Swollen stem nodes that readily produce adventitious roots
- ●Leaves alternate, with leaf sheaths
Morphological Traits
A family may include species with different trait values — multiple values indicate the range within the family.
Leaf arrangement
Alternate
Leaf type
Simple
Venation
Parallel
Leaf margin
Entire
Growth form
Herb
Evergreen/Deciduous
Evergreen
Leaf dissection
Undivided
Flower symmetry
Actinomorphic / Zygomorphic
Petal count
6 petals
Ovary position
Superior
Stamen count
3-4
Plant sex
Dioecious / Hermaphrodite / Monoecious
Phylogenetic Position
Angiosperms > Monocots > Commelinales > Commelinaceae
Divergence Era
Paleogene
Representative Genera
Related Evolution Events
- ・Efficient pollination through ephemeral flowers
- ・Vegetative propagation via adventitious roots from stem nodes