Vegetative key to the families

WOODY PLANT(usually shrubs) with leaves with PARALLEL VENATION (Fig. 26). Leaves alternate or spirally arranged, often crowded, rigid, ericoid, often sharp-pointed; the margins usually entire but sometimes denticulate; stipules absent Ericaceae
Stamens 8–10, twice as many as corolla lobes
Flower <1.5 cm long
Corolla lobes 5. Leaves alternate
Flowers ≤4 mm long. Stems with acicular bristles. Fruit a capsule enclosed by white or pink swollen calyx Gaultheria
Flowers ≥8 mm long. Stems with gland-tipped hairs. Fruit a berry, rough and orange at maturity Arbutus