川续断科

Habit: herb

Important diagnostics: spiny stems or leaves

Leaf: position: opposite, verticillate/whorled

Leaf: blade: margin: entire, lobed, cleft, parted or divided, dentate

Flowers: inflorescence: spike, head

Flowers: sexuality: bisexual

Flowers: symmetry: actinomorphic, zygomorphic

Flowers: petal position: connate or basally connate

Corolla: labiate

Stamen: number: 4

Stamen: filaments: inserted on the corolla

Pistil: ovary: 1-loculed

Pistil: ovule: 1 per locule

Pistil: pistil: ovules attached to the apex of the ovary

Ovary: position: inferior

Fruit: types and characters: a nut (incl. achene, caryopsis, schizocarp, pyrene, etc.)

Google Image Search: Link

Dictionary of The Families & Genera of Chinese Seed Plants: Link

Vascular Plant Type Catalog at NYBG: Link