Flora of North America species comparison

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Clarkia amoena subsp. whitneyi

Clarkia amoena subsp. caurina
Photo is of parent taxon

farewell to spring, Whitney's clarkia
Photo is of parent taxon
Stems

decumbent, to 100 cm.Inflorescences congested racemes;

bracts lanceolate;

internodes shorter than subtending flowers.

erect, to 50 cm.
Inflorescences

open racemes;

bracts ± narrowly lanceolate;

internodes as long as or longer than subtending flowers.
Flowers

petals with bright red spot mid blade, 30–60 mm;

ovary broadly fusiform, 8–12 mm wide, 8-grooved, 4 deeper;

stigma exserted beyond anthers.

petals usually with bright red spot mid blade or on distal part, less than 20 mm;

ovary cylindrical, 2–3 mm wide, 4-grooved, grooves sometimes inconspicuous;

stigma not exserted beyond anthers.
2n

= 14.

= 14.

Clarkia amoena subsp. whitneyi

Clarkia amoena subsp. caurina
Phenology Flowering Jul–Aug. Flowering Jun–Aug.
Habitat Coastal scrub. Sea bluffs, coastal slopes, along Columbia River.
Elevation 0–100 m. (0–300 ft.) 0–100 m. (0–300 ft.)
Distribution
from FNA
CA
[BONAP county map]
from FNA
OR; WA; BC
[BONAP county map]
Discussion

Subspecies whitneyi is common in cultivation, mostly as hybrid derivatives with other subspecies, but is scarce in the wild, found only rarely along the coast in Humboldt and Mendocino counties; it is listed as rare by the California Native Plant Society.

(Discussion copyrighted by Flora of North America; reprinted with permission.)

Subspecies caurina, the only subspecies that does not occur in California, is found along the coast and along the Columbia River in Oregon and Washington to British Columbia (only on Vancouver Island).

(Discussion copyrighted by Flora of North America; reprinted with permission.)
Source FNA vol. 10. FNA vol. 10.
Parent taxa Onagraceae > subfam. Onagroideae > tribe Onagreae > Clarkia > sect. Rhodanthos > subsect. Primigenia > Clarkia amoena Onagraceae > subfam. Onagroideae > tribe Onagreae > Clarkia > sect. Rhodanthos > subsect. Primigenia > Clarkia amoena
Sibling taxa
C. amoena subsp. amoena, C. amoena subsp. caurina, C. amoena subsp. huntiana, C. amoena subsp. lindleyi
C. amoena subsp. amoena, C. amoena subsp. huntiana, C. amoena subsp. lindleyi, C. amoena subsp. whitneyi
Synonyms Oenothera whitneyi, Godetia whitneyi Godetia caurina, C. amoena var. caurina, C. amoena var. pacifica, G. pacifica
Name authority (A. Gray) H. Lewis & M. E. Lewis: Univ. Calif. Publ. Bot. 20: 265. (1955) (Abrams ex Piper) H. Lewis & M. E. Lewis: Univ. Calif. Publ. Bot. 20: 268. (1955)
Web links 
Unless otherwise noted, all data comes from the online version of the Flora of North America, who have made most of their content available via a Creative Commons license (CC BY 4.0).



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