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 free or nearly so
Stipules absent
Styles 5. Capsule with 10 teeth Cerastium
Upper bracts scarious on the tip or margins
Upper bracts scarious at least in the upper third. Lower leaves up to 20 mm long. Pedicels as long as or longer than the sepals. Hairs on sepals not exceeding the apex. Blue Mts Weed. Introd. from Europe. Fl. spring Cerastium balearicum f.
Upper bracts scarious on tip and margins only but green in centre of upper third. Leaves up to 30 mm long. Pedicels shorter than or equal to the sepals. Widespread. Weed. Introd. from Europe. Fl. spring Cerastium vulgare