15. Chylismia cardiophylla (Torrey) Small, Bull. Torrey Bot. Club. 23: 193. 1896. (as Chylisma).
[F]
Oenothera cardiophylla Torrey in War Department [U.S.], Pacif. Rail. Rep. 5(2): 360. 1857; Camissonia cardiophylla (Torrey) P. H. Raven
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.
Subspecies 3 (2 in the flora): sw United States, nw Mexico.
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.
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.
