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Rose family🌸
Rosaceae
バラ科
A large family including cherries, plums, apples, strawberries, and roses. Approximately 3,000 species are known, predominantly in temperate regions of the Northern Hemisphere. Remarkable for its diversity of fruit types and close agricultural ties with humans.
Key Characteristics
- ●Typically 5 petals
- ●5 sepals
- ●Numerous stamens
- ●Highly diverse fruit types (drupes, pomes, aggregate fruits, achenes, etc.)
- ●Stipules commonly present
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 / Compound
Venation
Pinnate / Palmate
Leaf margin
Serrate / Dentate / Entire / Crenate
Growth form
Shrub / Tree / Herb
Evergreen/Deciduous
Evergreen / Deciduous
Compound type
Ternate / Pinnate / Palmate
Leaf dissection
Dissected / Undivided
Stipules
Present / Absent
Flower symmetry
Actinomorphic
Petal count
5 petals
Petal fusion
Free / Fused
Ovary position
Superior / Inferior / Half-inferior
Stamen count
3-4
Plant sex
Hermaphrodite
Phylogenetic Position
Angiosperms > Eudicots > Core eudicots > Rosales > Rosaceae
Divergence Era
Late Cretaceous (approx. 90 million years ago onward)
Representative Genera
Related Evolution Events
- ・Establishment of the basic pentamerous flower plan
- ・Evolution of animal dispersal via fleshy fruits