Flora of North America species comparison

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Clarkia dudleyana

Clarkia arcuata

Dudley's clarkia

glandular clarkia, glandular clarkia or fairyfan, glandular fairyfan
Stems

erect, to 70 cm, puberulent.

erect, to 8 cm, glabrous or puberulent.
Leaves

petiole 3–10 mm;

blade narrowly lanceolate, 1.5–7 cm.

sessile;

blade linear to narrowly lanceolate or oblanceolate, 1.5–6cm, surfaces glabrate.
Inflorescences

open racemes, axis recurved at tip in bud;

buds pendent.

racemes, axis recurved at tip in bud;

buds pendent.
Flowers

floral tube 1–3 mm;

sepals reflexed together to 1 side;

corolla bowl-shaped, petals lavender-pink, usually white-streaked, often red-flecked, broadly fan-shaped, 10–30 mm, apex subentire to crenulate;

stamens 8, unequal, outer anthers lavender, inner smaller, paler.

floral tube 3–7 mm, puberulent with spreading hairs and shorter glandular hairs;

corolla bowl-shaped, petals pinkish lavender, lighter proximally, often with dark reddish spot at base, broadly obovate or obdeltate, 10–30 mm;

stamens 8, subequal;

ovary 8-grooved, sparsely puberulent, hairs mostly glandular;

stigma exserted beyond anthers.
Capsules

10–30 mm.

10–35 mm;

pedicel 5–15 mm.
Seeds

brown, 1 mm, minutely scaly to puberulent, crest inconspicuous.

brown, 2 mm, minutely scaly, crest 0.5 mm, prominent.
2n

= 18.

= 14.

Clarkia dudleyana

Clarkia arcuata
Phenology Flowering May–Jul. Flowering Apr–Jun.
Habitat Openings in woodlands, chaparral, yellow-pine forests, coastal sage. Openings in woodlands and chaparral, serpentine soil.
Elevation 0–1500 m. (0–4900 ft.) 0–1600 m. (0–5200 ft.)
Distribution
from FNA
CA
[WildflowerSearch map]
[BONAP county map]
from FNA
CA
[WildflowerSearch map]
[BONAP county map]
Discussion

Clarkia dudleyana is a rather widespread species in California, known primarily from the central and southern Sierra Nevada foothills, the Tehachapi Mountain area, the Transverse Ranges, and the Peninsular Ranges, ranging from Tuolumne to Riverside counties, sporadically in the north to Nevada County and in the south to San Diego County

Clarkia dudleyana is morphologically most similar to C. biloba and C. modesta, but molecular data suggest that the relationship is not close. On the basis of chloroplast DNA sequence, C. dudleyana and C. heterandra are closely related.

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

Clarkia arcuata is primarily distributed in the foothills of the Sierra Nevada from Mariposa to Tehama counties, sparsely south to Kern County, and with one disjunct occurrence in Shasta County; it has also been reported from Napa County.

Clarkia arcuata is morphologically most similar to C. lassenensis, from which it differs in fruit characteristics. The two species have distinct areas of distribution and attempts to produce hybrids have not been successful.

(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. Phaeostoma > subsect. Lautiflorae Onagraceae > subfam. Onagroideae > tribe Onagreae > Clarkia > sect. Rhodanthos > subsect. Flexicaules
Sibling taxa
C. affinis, C. amoena, C. arcuata, C. australis, C. biloba, C. borealis, C. bottae, C. breweri, C. concinna, C. cylindrica, C. davyi, C. delicata, C. epilobioides, C. exilis, C. franciscana, C. gracilis, C. heterandra, C. imbricata, C. jolonensis, C. lassenensis, C. lewisii, C. lingulata, C. mildrediae, C. modesta, C. mosquinii, C. prostrata, C. pulchella, C. purpurea, C. rhomboidea, C. rostrata, C. rubicunda, C. similis, C. speciosa, C. springvillensis, C. stellata, C. tembloriensis, C. unguiculata, C. virgata, C. williamsonii, C. xantiana
C. affinis, C. amoena, C. australis, C. biloba, C. borealis, C. bottae, C. breweri, C. concinna, C. cylindrica, C. davyi, C. delicata, C. dudleyana, C. epilobioides, C. exilis, C. franciscana, C. gracilis, C. heterandra, C. imbricata, C. jolonensis, C. lassenensis, C. lewisii, C. lingulata, C. mildrediae, C. modesta, C. mosquinii, C. prostrata, C. pulchella, C. purpurea, C. rhomboidea, C. rostrata, C. rubicunda, C. similis, C. speciosa, C. springvillensis, C. stellata, C. tembloriensis, C. unguiculata, C. virgata, C. williamsonii, C. xantiana
Synonyms Godetia dudleyana Oenothera arcuata, Godetia hispidula, O. hispidula
Name authority (Abrams) J. F. Macbride: Contr. Gray Herb. 56: 54. (1918) (Kellogg) A. Nelson & J. F. Macbride: Bot. Gaz. 65: 62. (1918)
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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