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Stachyurus family
Stachyuraceae J.Agardh
キブシ科
A family of deciduous shrubs to small trees distributed in East and Southeast Asia. Comprises a single genus (Stachyurus) with approximately 6 species. In Japan, S. praecox and S. macrocarpus are native, producing pendulous, pale yellow spicate inflorescences before the leaves emerge in early spring.
Key Characteristics
- ●Leaves alternate with serrate margins
- ●Flowers 4-merous, pale yellow, in pendulous spicate inflorescences
- ●Flowering in early spring before leaf emergence
- ●Fruit a berry-like capsule
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
Pinnate
Leaf margin
Serrate
Growth form
Shrub / Tree / Vine
Evergreen/Deciduous
Evergreen / Deciduous
Leaf dissection
Undivided
Stipules
Present
Flower symmetry
Actinomorphic
Petal count
Many
Ovary position
Superior
Stamen count
3-4
Plant sex
Hermaphrodite / Monoecious
Phylogenetic Position
Angiosperms > Eudicots > Core eudicots > Crossosomatales > Stachyuraceae
Divergence Era
Paleogene (ca. 55 million years ago)
Representative Genera
Related Evolution Events
- ・Adaptation to temperate deciduous forests of East Asia
- ・Establishment of an early-spring flowering pollination strategy
Plants in Stachyurus family on this site
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