Herbs or subshrubs, perennial. Leaves: basal rosette absent, proximalmost internodes 5 mm; blade without broad basal lobes, margins entire, toothed, or pinnatisect, revolute. Flowers: stamens all fertile, filaments monomorphic, filiform, unlobed; ovules (and seeds) oriented parallel to long axis of ovary. Capsules ovoid to urceolate, straight. Seeds ovoid to bottle-shaped, mostly trigonal, not winged; seed coat cells polygonal, longer than wide, anticlinal walls sinuous.

Distribution

w United States.

Discussion

Species 1.

Selected References

None.

Lower Taxa

Mentzelia torreyi