Convolvulaceae
Habit:
- These are mostly twiners, often with latex and bicollateral vascular bundles or internal phloem.
Leaves:
- The leaves are simple, alternate, and exstipulate.
Inflorescence:
- The inflorescence is cymose. The flowers are regular, bisexual, hypogynous, often large, and showy.
Calyx:
- There are five sepals, usually free. The odd one is posterior, imbricate, and persistent.
Corolla:
- There are (5) petals, that are gamopetalous, funnel-shaped, twisted in the bud, and sometimes imbricate.
Androecium:
- The five stamens are epipetalous, alternating with the petals.
Gynoecium:
- There are (2) carpels, rarely more, connate. The ovary is superior, with a disc at the base. It is two-celled, with two ovules in each cell, or sometimes four celled with one ovule in each cell. The placentation is axile.
Fruit:
- The fruit is a berry or a capsule.
Floral formula:
Examples: Sweet potato (Ipomoea batatas), jalap (Ipomoea purga), etc.
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