Clarkia cylindrica |
Clarkia franciscana |
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speckled clarkia, speckled fairyfan |
Presidio clarkia |
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Stems | erect, to 60 cm, puberulent or glabrous. |
erect, to 40 cm, strigillose. |
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Leaves | petiole to 5 mm; blade linear to narrowly lanceolate, 1–6 cm. |
petiole 0–5 mm; blade narrowly lanceolate, 1–5.5 cm. |
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Inflorescences | open racemes, axis recurved at tip in bud; buds pendent. |
racemes, axis straight; buds erect. |
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Flowers | floral tube 2–7 mm, with ring of hairs proximal to distal margin inside; sepals reflexed together to 1 side; corolla bowl-shaped, petals purple to pinkish lavender shading white near middle, often reddish purple-flecked, base bright purplish red, 10–35 mm; stamens 8, unequal, width of outer filaments about 2 times inner, outer anthers lavender, inner smaller, paler. |
floral tube 1–3 mm; sepals reflexed together to one side; corolla bowl-shaped, petals lavender-pink shading white near middle, base bright reddish purple, fan-shaped, 5–13 mm, apex erose; stamens 8, subequal; ovary cylindrical, 4-grooved, puberulent; stigma not exserted beyond anthers. |
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Capsules | 20–50 mm, beak 3–5 mm. |
20–40 mm; pedicel 0–15 mm. |
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Seeds | brown, 1–1.5 mm, minutely scaly to puberulent, crest 0.1 mm. |
gray, 1.2–1.5 mm, scaly, crest 0.2 mm. |
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2n | = 14. |
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Clarkia cylindrica |
Clarkia franciscana |
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Phenology | Flowering May–Jun. | |||||
Habitat | Serpentine soil. | |||||
Elevation | 50 m. (200 ft.) | |||||
Distribution |
California
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CA |
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Discussion | Subspecies 2 (2 in the flora). As defined by Davis, the subspecies of Clarkia cylindrica have distinct but partly overlapping geographical ranges; subsp. cylindrica mainly in the South Coast and Transverse Ranges to the Tehachapi Mountain area, and subsp. clavicarpa mainly in the central and southern Sierra Nevada Foothills to the Tehachapi Mountain area. More recent collections suggest more substantial geographical overlap. Morphological variation correlates with geographical distribution, with the most consistent difference in ovary and capsule shape. According to Davis, the taxa are moderately interfertile, less so for more distantly separated individuals. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Clarkia franciscana is an endangered species (designated rare by the California Native Plant Society), restricted to serpentine soils in coastal grass and shrub communities. The only known localities for it are the Presidio in San Francisco County, and the Oakland Hills in Alameda and Contra Costa counties. Geographic distribution and petal color pattern suggest that Clarkia franciscana may be a self-pollinating derivative of C. rubicunda. If true, enzyme studies indicate that the origin is not recent. Clarkia franciscana is in the Center for Plant Conservation’s National Collection of Endangered Plants. (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 > Clarkia > sect. Phaeostoma > subsect. Sympherica | Onagraceae > subfam. Onagroideae > tribe Onagreae > Clarkia > sect. Rhodanthos > subsect. Primigenia | ||||
Sibling taxa | ||||||
Subordinate taxa | ||||||
Synonyms | Godetiabottae spach var. cylindrica | |||||
Name authority | (Jepson) H. Lewis & M. E. Lewis: Madroño 12: 33. (1953) — (as cyclindrica) | H. Lewis & P. H. Raven: Brittonia 10: 7, fig. 1a, b, d. (1958) | ||||
Web links |