Chylismia eastwoodiae |
Chylismia megalantha |
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Habit | Herbs annual, succulent, glabrous, glandular puberulent, or villous proximally. | Herbs annual, glandular pubescent throughout. |
Stems | unbranched or branched from base, 3–30 cm. |
several, 10–200 cm. |
Leaves | primarily in basal rosette and also cauline; petiole 0.5–8 cm; blade usually not pinnately lobed or, if so, then lateral lobes greatly reduced, terminal lobe oblanceolate to cordate, 0.8–7.5 × 0.4–3 cm, margins entire or sparsely denticulate, pale brown oil cells lining veins abaxially. |
in poorly defined basal rosette and cauline; petiole 1.8–5.5 cm; blade unlobed, broadly cordate to ovate, 2.4–8 × 7 cm, margins sinuate-dentate, yellowish oil cells prominently lining veins abaxially. |
Racemes | nodding, elongating after anthesis. |
erect, elongating in flower. |
Flowers | opening at sunrise; buds without subapical free tips; floral tube 2–4.5 mm, villous inside proximally; sepals 3–8 mm; petals bright yellow, with red dots near base, fading pale yellow or yellowish orange, 5.5–9 mm; stamens unequal, filaments of antisepalous stamens 3–8 mm, those of antipetalous ones 2.8–5.5 mm, anthers 2–4 mm, ciliate; style 10–17 mm, stigma exserted beyond anthers at anthesis. |
opening at sunrise; buds without free tips; floral tube 4–9 mm, with matted, villous hairs inside; sepals 4.5–9 mm; petals pale to dark lavender, diffusely purplish-flecked near base, white at very base, fading darker lavender, 9–14 mm; stamens unequal, filaments of antisepalous stamens 6–12 mm, of antipetalous ones 3.5–8 mm, anthers 2 mm, glabrous; style 14–22.5 mm, stigma exserted beyond anthers at anthesis. |
Capsules | erect, spreading, or slightly reflexed, clavate, 18–40 mm; pedicel 4–28 mm. |
erect or ascending, clavate, 8–14 mm; pedicel 2–3.5 mm. |
Seeds | 1.2–1.7 mm. |
1–1.3 mm. |
2n | = 14. |
= 14. |
Chylismia eastwoodiae |
Chylismia megalantha |
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Phenology | Flowering Apr–Jun. | Flowering Jun–Oct. |
Habitat | Clay flats, on gray, alkaline, marine-deposited gumbo, sandy draws. | Rubble derived from volcanic tuff, partly on moist soil along springs. |
Elevation | 1200–1800 m. (3900–5900 ft.) | 1200–1400 m. (3900–4600 ft.) |
Distribution |
CO; UT |
NV |
Discussion | Chylismia eastwoodiae is known from Mesa County, Colorado, and from Emery County south to San Juan County, Utah. P. H. Raven (1962, 1969) suspected this species to be self-incompatible, but did not have data to make the determination. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Chylismia megalantha is known from around Frenchman Drainage to French Peak and Skull Mountain in southern Nye County. P. H. Raven (1962, 1969) determined this species to be self-compatible, but outcrossing. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Source | FNA vol. 10. | FNA vol. 10. |
Parent taxa | ||
Sibling taxa | ||
Synonyms | Oenothera scapoidea var. eastwoodiae, Camissonia eastwoodiae, O. eastwoodiae | Oenothera heterochromas. var. megalantha, Camissonia megalantha, O. megalantha |
Name authority | (Munz) W. L. Wagner & Hoch: Syst. Bot. Monogr. 83: 207. (2007) | (Munz) W. L. Wagner & Hoch: Syst. Bot. Monogr. 83: 207. (2007) |
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