Flora of North America species comparison

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Clarkia dudleyana

Clarkia sect. Phaeostoma

Dudley's clarkia
Stems

erect, to 70 cm, puberulent.

Leaves

petiole 3–10 mm;

blade narrowly lanceolate, 1.5–7 cm.

Inflorescences

open racemes, axis recurved at tip in bud;

buds pendent.

axis recurved or erect;

buds pendent or erect.
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 obconic or campanulate, 1–5(–7) mm;

sepals reflexed together to 1 side (sometimes in pairs in C. epilobioides);

petals lavender, pink purplish, or white, obovate or spatulate to fan-shaped, unlobed or rarely 2-lobed, tapering to claw;

stamens 8, unequal, outer anthers darker pink or purple, inner shorter and pale pink or cream, rarely sterile (C. heterandra);

ovary 4- or 8-grooved or ribbed, or smooth (C. heterandra).
Capsules

10–30 mm.

narrowly cylindrical or subfusiform, or rarely broadly subclavate (indehiscent, nutlike capsule in C. heterandra), 4 or 8-grooved or smooth;

sessile or subsessile to long-pedicellate.
Seeds

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

2n

= 18.

Clarkia dudleyana

Clarkia sect. Phaeostoma
Phenology Flowering May–Jul.
Habitat Openings in woodlands, chaparral, yellow-pine forests, coastal sage.
Elevation 0–1500 m. (0–4900 ft.)
Distribution
from FNA
CA
[WildflowerSearch map]
[BONAP county map]
nw Mexico; California
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.)

Species 15 (15 in the flora).

Section Phaeostoma is the largest section in Clarkia, with the 15 species classified in seven subsections. For the most part, these correspond with groups delineated originally by H. Lewis and M. E. Lewis (1955). Within the part of the genus with dimorphic stamens (8 in 2 dissimilar sets that vary in size and color), the species of sect. Phaeostoma have entire petals that taper to a distinct claw. Even though molecular support for sect. Phaeostoma is not strong (R. A. Levin et al. 2004), at this time it seems preferable to stress similarities and maintain this variable group in one section.

(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
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
Subordinate taxa
Synonyms Godetia dudleyana Phaeostoma, C.
Name authority (Abrams) J. F. Macbride: Contr. Gray Herb. 56: 54. (1918) (Spach) H. Lewis & M. E. Lewis: Univ. Calif. Publ. Bot. 20: 338. (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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