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campo clarkia, delicate clarkia

two lobed clarkia, twolobe clarkia

Stems

erect, 20–70 cm, glabrous and glaucous distally, usually puberulent basally.

erect, 30–100 cm, strigillose.

Leaves

petiole to 10 mm;

blade lanceolate to elliptic or ovate, 1.5–4 cm.

petiole to 15 mm;

blade linear to lanceolate, 2–8 cm.

Inflorescences

open racemes, sometimes branched, axis straight;

buds pendent.

open racemes, axis recurved at tip in bud;

buds pendent.

Flowers

floral tube 2 mm;

sepals reflexed together to 1 side;

corolla rotate, petals oblanceolate to obovate, 8–12 mm, claw tapered, shorter than blade, apex entire;

stamens 8, unequal, outer anthers orange-red, inner smaller, paler.

floral tube 1–4 mm;

sepals reflexed together to 1 side;

corolla rotate to bowl-shaped, petals purplish to pale pink, lavender, or bright pink to magenta, often red-flecked, broadly to narrowly fan-shaped, 10–25 mm, shallowly to deeply 2-lobed;

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

Capsules

15–35 mm;

subsessile.

10–25 mm.

Seeds

brown, 1–1.5 mm, tuberculate (especially on raphe), crest inconspicuous.

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

2n

= 36.

Clarkia delicata

Clarkia biloba

Phenology Flowering Apr–May.
Habitat Oak woodlands, chaparral.
Elevation 0–1000 m. (0–3300 ft.)
Distribution
from FNA
CA; Mexico (Baja California)
[WildflowerSearch map]
[BONAP county map]
from USDA
California
[WildflowerSearch map]
[BONAP county map]
Discussion

Clarkia delicata is known in California only from the Peninsular Ranges, mainly in San Diego County with outliers in Riverside and San Bernardino counties, and in northern Baja California, Mexico. Because of its limited range, it is listed as rare by the California Native Plant Society. It is a tetraploid derived from hybridization between C. epilobioides and C. unguiculata.

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

Subspecies 3 (3 in the flora).

Clarkia biloba is most closely related to C. lingulata, which is derived from C. biloba subsp. australis. Some populations of C. biloba subsp. brandegeeae (originally described as a form of C. dudleyana) are morphologically very similar to some individuals of C. dudleyana but the two taxa are separated geographically, have different chromosome numbers, and hybrids between them are sterile.

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

Key
1. Petals bright pink to magenta, narrowly fan-shaped, length greater than 1.5 times width.
subsp. australis
1. Petals lavender to pale or purplish pink, broadly fan-shaped, length not greater than 1.5 times width.
→ 2
2. Petals purplish to pale pink, deeply 2-lobed, lobes usually 1/5–1/2 petal length.
subsp. biloba
2. Petals lavender, shallowly 2-lobed, lobes usually less than 1/5 petal length, sometimes obscure.
subsp. brandegeeae
Source FNA vol. 10. FNA vol. 10.
Parent taxa Onagraceae > subfam. Onagroideae > tribe Onagreae > Clarkia > sect. Phaeostoma > subsect. Connubium Onagraceae > subfam. Onagroideae > tribe Onagreae > Clarkia > sect. Phaeostoma > subsect. Lautiflorae
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. 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
C. affinis, C. amoena, C. arcuata, C. australis, 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
Subordinate taxa
C. biloba subsp. australis, C. biloba subsp. biloba, C. biloba subsp. brandegeeae
Synonyms Godetia delicata Oenothera biloba, Godetia biloba
Name authority (Abrams) A. Nelson & J. F. Macbride: Bot. Gaz. 65: 60. (1905) (Durand) A. Nelson & J. F. Macbride: Bot. Gaz. 65: 60. (1918)
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