Chylismia cardiophylla |
Chylismia specicola |
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heart leaf primrose, heartleaf suncup |
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Habit | Herbs annual or perennial, villous and glandular puberulent. | Herbs perennial, base sometimes woody, glabrous or sparsely villous proximally. | ||||||||
Stems | usually well branched, forming bushy habit, 20–100 cm. |
with several divergent branches from base, 10–50 cm. |
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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. |
primarily in basal rosette and cauline, 3–20 × 0.7–2.5 cm; petiole 0.5–4 cm; blade pinnately or bipinnately lobed, terminal lobe ovate to elliptic, 0.4–2.5 × 0.3–1.5 cm, margins irregularly serrate, dark brown oil cells prominently lining veins abaxially. |
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Racemes | nodding, congested. |
erect, elongating after anthesis. |
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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. |
opening at sunrise; buds individually reflexed, with apical free tips less than 1 mm; floral tube 1.5–2 mm, glabrous inside; sepals 2–5 mm; petals bright yellow, with red dots near base, fading pale lavender, 2–6 mm; stamens unequal, filaments of antisepalous stamens 1.5–3 mm, those of antipetalous ones 1–2 mm, anthers 1.2–2 mm, glabrous; style 4–7 mm, stigma surrounded by anthers at anthesis. |
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Capsules | ascending, cylindrical, 20–55 mm; pedicel 1–18 mm. |
spreading to ascending, oblong-cylindrical, 8–20 mm; pedicel 6–10 mm. |
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Seeds | 0.5–0.7 mm. |
0.6–1 mm. |
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Chylismia cardiophylla |
Chylismia specicola |
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Distribution | sw United States; nw Mexico
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Arizona |
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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. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Subspecies 2 (2 in the flora). P. H. Raven (1962, 1969) thought that this species is most likely self-compatible but primarily outcrossing. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
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Key |
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Source | FNA vol. 10. | FNA vol. 10. | ||||||||
Parent taxa | Onagraceae > subfam. Onagroideae > tribe Onagreae > Chylismia > sect. Lignothera | Onagraceae > subfam. Onagroideae > tribe Onagreae > Chylismia > sect. Chylismia | ||||||||
Sibling taxa | ||||||||||
Subordinate taxa | ||||||||||
Synonyms | Oenothera cardiophylla, Camissonia cardiophylla | Oenothera specicola, Camissonia specicola | ||||||||
Name authority | (Torrey) Small: Bull. Torrey Bot. Club 23: 193. (1896) — (as Chylisma) | (P. H. Raven) W. L. Wagner & Hoch: Syst. Bot. Monogr. 83: 208. (2007) | ||||||||
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