Vegetative key to the families

Herbs with SWOLLEN NODES and opposite or rarely whorled leaves; leaves always simple with entire margins; the leaf bases often connate. Stipules mostly absent, sometimes membranous and connate Caryophyllaceae
Sepals connate
Styles 3–5. Fruit a 5–6-valved capsule
Styles 3. Capsule 6-toothed Silene
Styles 3
Calyx 20-veined, inflated, 1–2 cm diam. Leaves elliptic to narrow-elliptic, 2–7 cm long. Petals white or pinkish. Glabrous, perennial herb. Widespread. Weed of cultivation and pastures. Introd. from Europe. Fl. spring–summer. Bladder Campion Silene vulgaris
Calyx 10-veined, not inflated, up to 5 mm diam