UW Burke Herbarium species comparison

Leaves opposite, 2-several per node, 1.5-4 cm. long and 1-2.5 mm. broad, tipped with a sharp, slender point.

Leaves opposite, not fascicled, up to 4.5 cm. long and 1-1.5 mm. broad, blunt to acute;

stipules scarious, 1.5-3 mm. long and broad.

Inflorescence a lax, open, leafy, terminal cyme;

sepals 5, 5-9 mm. long, acute;

petals 5, dark to pale pink, entire, shorter than the sepals;

stamens 10, attached under the superior ovary;

styles 3, distinct, 0.6-1.2 mm. long.

Flowers in open, leafy, terminal cymes;

sepals 5, distinct, glabrous to glandular-pubescent, 3-4.5 mm. long;

petals 5, white or pink, nearly equalling the sepals;

stamens 2-5;

styles 3, 0.3-0.4 mm. long.

Capsule dehiscent by 3 valves, longer than the calyx