Herbs annual or perennial, villous and glandular puber­ulent. Stems usually well branched, forming bushy habit, 20–100 cm. Leaves cauline, mostly toward base; petiole (0.7–)2.5–7.5 cm; blade cordate-ovate to -orbiculate, 2.5–7.5 × 2.3–5.5 cm, smaller distally, margins erose-dentate. Racemes nodding, congested. Flowers: floral tube 4.5–14 mm, villous inside; sepals 3–9 mm; petals yellow, 3–12 mm; filaments 1–3 mm, anthers 2–4 mm; style 8–23 mm, stigma surrounded by or exserted just beyond anthers at anthesis. Capsules ascending, cylindrical, 20–55 mm; pedicel 1–18 mm. Seeds 0.5–0.7 mm.

Distribution

sw United States, nw Mexico.

Discussion

Subspecies 3 (2 in the flora).

P. H. Raven (1962, 1969) determined this species to be self-compatible, but primarily outcrossing. Subspecies cedrosensis (Greene) W. L. Wagner & Hoch, occurs in Baja California and adjacent Sonora, Mexico.

Selected References

None.

Lower Taxa

Chylismia cardiophylla subsp. cardiophylla, Chylismia cardiophylla subsp. robusta

Key

1	Herbs villous, sometimes also glandular puberulent; floral tubes 4.5–12 mm.	Chylismia cardiophylla subsp. cardiophylla
1	Herbs glandular puberulent throughout, often also sparsely villous; floral tubes 9–14 mm.	Chylismia cardiophylla subsp. robusta