Noun | 1. | ![]() rosid dicot genus - a genus of dicotyledonous plants family Saxifragaceae, Saxifragaceae, saxifrage family - a large and diverse family of evergreen or deciduous herbs; widely distributed in northern temperate and cold regions; sometimes includes genera of the family Hydrangeaceae Heuchera cylindrica, poker alumroot, poker heuchera - plant with leathery heart-shaped leaf blades clustered at base of long stalks with greenish-white flowers clustered along the upper part; western North America coralbells, Heuchera sanguinea - perennial plant of the western United States having bright red flowers in feathery spikes; used as an ornamental |