Clarkia mildrediae |
Clarkia borealis |
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Mildred's clarkia |
northern clarkia |
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Stems | erect, to 100 cm, puberulent. |
erect, to 100 cm, puberulent. |
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Leaves | petiole 15–40 mm; blade elliptic to ovate, 3–6 cm. |
petiole 15–40 mm; blade elliptic to ovate, 2–6 cm. |
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Inflorescences | open racemes, axis recurved in bud, straight only 1–3 nodes distal to open flowers; buds pendent, tip acute. |
open racemes, axis recurved only at tip in bud, straight 4+ nodes distal to open flowers; buds pendent, fusiform, base slightly swollen, tip acute. |
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Flowers | floral tube 2–3 mm; sepals usually reflexed individually; corolla rotate, petals reddish purple, often darker flecked or spotted, narrowly obdeltate to suborbiculate, unlobed, 11–25 × 7–18 mm, length 1.4–1.6 times width; stamens 8, subequal, subtended by ciliate scales, anthers magenta or orange-red to yellow, pollen blue-gray or bright yellow to tan; ovary shallowly 4-grooved, puberulent; stigma exserted beyond anthers. |
floral tube 2–4 mm; sepals reflexed individually; corolla rotate, petals lavender-pink, often dark-flecked, obdeltate to suborbiculate, unlobed, 13–19 ×7–12 mm, length 1.6–2 times width; stamens 8, subequal, subtended by ciliate scales, pollen blue-gray; ovary shallowly 4-grooved, puberulent; stigma exserted beyond anthers. |
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Capsules | 20–30 mm; pedicel 0–5 mm. |
20–30 mm; pedicel 0–3 mm. |
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Seeds | brown or gray, 1.5–1.8 mm, scaly-echinate, crest 0.1 mm. |
light brown or mottled with dark spots, 1.5–2.5 mm, minutely tuberculate, crest 0.2 mm. |
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Clarkia mildrediae |
Clarkia borealis |
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Distribution |
California
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California |
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Discussion | Subspecies 2 (2 in the flora). Clarkia mildrediae is closely related to, and may be derived from, C. borealis. Clarkia mildrediae subsp. lutescens is probably the direct ancestor of C. stellata. Clarkia mildrediae differs from C. borealis in petal color and inflorescence habit and from C. stellata in flower size and position of the stigma. On the basis of morphology, chromosome number and pairing, C. mildrediae appears to be one of the parents of the tetraploid species C. rhomboidea. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Subspecies 2 (2 in the flora). Clarkia borealis is closely related, and possibly ancestral, to C. mildrediae. The two species can be distinguished most readily by the degree of curvature of the inflorescence and the petal color. (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. Myxocarpa | Onagraceae > subfam. Onagroideae > tribe Onagreae > Clarkia > sect. Myxocarpa | ||||||||
Sibling taxa | ||||||||||
Subordinate taxa | ||||||||||
Synonyms | Phaeostoma mildrediae | |||||||||
Name authority | (A. Heller) H. Lewis & M. E. Lewis: Madroño 12: 34. (1953) | E. Small: Canad. J. Bot. 49: 1215, figs. 2B, 3A,B. (1971) | ||||||||
Web links |