21. It is a deciduous shrub or small tree growing to 7 m tall, with involucre ( husk ). 22. A cluster of 3 to 5 flowers blooms in a bell-shaped involucre of five partly fused bracts. 23. The inflorescence is a head of flowers borne in a bowl-like involucre of wide, hairy bracts. 24. Porsild recognized a subgenus " Trabutiella " distinguished by the presence of longitudinal wings on the involucre . 25. The branching inflorescence has bell-shaped involucres each containing three purple-pink flowers about a centimeter wide. 26. The term involucre is also used for a highly conspicuous bract or bract pair at the base of an inflorescence. 27. They are shrubs reaching 3-5 m tall, with alternate, double-toothed hazel-like involucre . 28. Pollinated female flowers develop into small nutlets long fully enclosed in a papery sac-shaped involucre long and wide. 29. The wide involucres are green to dark green or brownish-green, with the tips dark gray or purplish. 30. Within this involucre is the pink to red flower which is a few millimeters wide and contains nine tiny stamens.
