Balsamorhiza subg. Artorhiza

Taproots relatively massive; bark relatively thick, corrugated; rhizomes none; caudices usually multi-branched. Petioles mostly longer than leaf blades. Basal leaves: blades mostly rounded-deltate or deltate to triangular-deltate, bases sagittate or cordate to truncate, margins usually entire, sometimes crenate. Cauline leaves usually at mid stems. Ray corollas yellow.

Distribution

w North America.

Discussion

Species 3 (3 in the flora).

Members of subg. Artorhiza inhabit relatively deep, well-developed soils, flower only after at least 4–5 years, and attain ages of possibly 50 years.

Selected References

None.

Lower Taxa

Balsamorhiza careyana, Balsamorhiza deltoidea, Balsamorhiza sagittata