Flora of North America species comparison

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Clarkia jolonensis

Clarkia exilis

Jolon clarkia

Kern River clarkia, Kern River or slender clarkia, slender clarkia
Stems

erect, to 60 cm, glabrous, glaucous.

erect, 30–100 cm, glabrous, glaucous.
Leaves

petiole to 10 mm;

blade narrowly lanceolate to lanceolate, 3–5 cm.

petiole 0–5 mm;

blade bright green, lanceolate to narrowly elliptic, 1–6 cm, surfaces not glaucous, glabrous.
Inflorescences

open racemes, axis straight;

buds pendent.

open racemes, axis erect;

buds pendent.
Flowers

floral tube 2–3 mm;

sepals reflexed together to 1 side;

corolla bowl-shaped, petals pale lavender to pinkish lavender, usually red-flecked, unlobed, 10–20 mm;

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

ovary obscurely 4-grooved;

stigma exserted beyond anthers.

floral tube 1–3 mm;

sepals reflexed together to 1 side, usually green, sparsely to densely puberulent inside, without longer, spreading hairs;

corolla rotate, petals lavender-pink or white, often with dark purplish spot, usually diamond-shaped, 5–15 mm, claw slender, equal to or longer than blade, entire;

stamens 8, unequal, outer anthers red, inner smaller, paler;

ovary with hairs as on sepals;

stigma subequal to anthers.
Capsules

30–40 mm;

pedicel 0–10 mm.

10–30 mm.
Seeds

dark gray, 1.2–1.4 mm, scaly, crest 0.2 mm.

brown, 1 mm, tuberculate, crest inconspicuous.
2n

= 18.

= 18.

Clarkia jolonensis

Clarkia exilis
Phenology Flowering Apr–Jun. Flowering Apr–May.
Habitat Dry woodlands. Woodlands
Elevation 200–700 m. (700–2300 ft.) 0–1000 m. (0–3300 ft.)
Distribution
from FNA
CA
[BONAP county map]
from FNA
CA
[BONAP county map]
Discussion

Clarkia jolonensis is known only from Monterey County, mainly in the Outer South Coast Ranges. It is scarcely distinguishable morphologically from C. bottae except for seed color, but attempts to produce hybrids have been unsuccessful. Although in describing C. jolonensis Parnell suggested that its range did not overlap with that of C. bottae, the ranges in fact overlap extensively in Monterey County.

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

Clarkia exilis is of limited distribution, known primarily from the southern Sierra Nevada Foothills and Tehachapi Mountain area in Kern and Tulare counties, with unverified reports from Fresno, San Luis Obispo, and Ventura counties. It is listed as rare by the California Native Plant Society.

Clarkia exilis is derived from C. unguiculata and is closely related to C. springvillensis and C. tembloriensis.

(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. Fibula Onagraceae > subfam. Onagroideae > tribe Onagreae > Clarkia > sect. Phaeostoma > subsect. Phaeostoma
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. dudleyana, C. epilobioides, C. exilis, C. franciscana, C. gracilis, C. heterandra, C. imbricata, 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. biloba, C. borealis, C. bottae, C. breweri, C. concinna, C. cylindrica, C. davyi, C. delicata, C. dudleyana, C. epilobioides, 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
Name authority D. R. Parnell: Madroño 20: 322. (1970) H. Lewis & Vasek: Madroño 12: 211. (1954)
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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