Flora of North America species comparison

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Clarkia franciscana

Clarkia cylindrica

Presidio clarkia

speckled clarkia, speckled fairyfan
Stems

erect, to 40 cm, strigillose.

erect, to 60 cm, puberulent or glabrous.
Leaves

petiole 0–5 mm;

blade narrowly lanceolate, 1–5.5 cm.

petiole to 5 mm;

blade linear to narrowly lanceolate, 1–6 cm.
Inflorescences

racemes, axis straight;

buds erect.

open racemes, axis recurved at tip in bud;

buds pendent.
Flowers

floral tube 1–3 mm;

sepals reflexed together to one side;

corolla bowl-shaped, petals lavender-pink shading white near middle, base bright reddish purple, fan-shaped, 5–13 mm, apex erose;

stamens 8, subequal;

ovary cylindrical, 4-grooved, puberulent;

stigma not exserted beyond anthers.

floral tube 2–7 mm, with ring of hairs proximal to distal margin inside;

sepals reflexed together to 1 side;

corolla bowl-shaped, petals purple to pinkish lavender shading white near middle, often reddish purple-flecked, base bright purplish red, 10–35 mm;

stamens 8, unequal, width of outer filaments about 2 times inner, outer anthers lavender, inner smaller, paler.
Capsules

20–40 mm;

pedicel 0–15 mm.

20–50 mm, beak 3–5 mm.
Seeds

gray, 1.2–1.5 mm, scaly, crest 0.2 mm.

brown, 1–1.5 mm, minutely scaly to puberulent, crest 0.1 mm.
2n

= 14.

Clarkia franciscana

Clarkia cylindrica
Phenology Flowering May–Jun.
Habitat Serpentine soil.
Elevation 50 m. (200 ft.)
Distribution
from FNA
CA
[BONAP county map]
from USDA
California
[WildflowerSearch map]
[BONAP county map]
Discussion

Clarkia franciscana is an endangered species (designated rare by the California Native Plant Society), restricted to serpentine soils in coastal grass and shrub communities. The only known localities for it are the Presidio in San Francisco County, and the Oakland Hills in Alameda and Contra Costa counties.

Geographic distribution and petal color pattern suggest that Clarkia franciscana may be a self-pollinating derivative of C. rubicunda. If true, enzyme studies indicate that the origin is not recent.

Clarkia franciscana is in the Center for Plant Conservation’s National Collection of Endangered Plants.

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

Subspecies 2 (2 in the flora).

As defined by Davis, the subspecies of Clarkia cylindrica have distinct but partly overlapping geographical ranges; subsp. cylindrica mainly in the South Coast and Transverse Ranges to the Tehachapi Mountain area, and subsp. clavicarpa mainly in the central and southern Sierra Nevada Foothills to the Tehachapi Mountain area. More recent collections suggest more substantial geographical overlap. Morphological variation correlates with geographical distribution, with the most consistent difference in ovary and capsule shape. According to Davis, the taxa are moderately interfertile, less so for more distantly separated individuals.

(Discussion copyrighted by Flora of North America; reprinted with permission.)
Key
1. Ovaries and capsules cylindrical.
subsp. cylindrica
1. Ovaries and capsules subclavate, enlarged distally.
subsp. clavicarpa
Source FNA vol. 10. FNA vol. 10.
Parent taxa Onagraceae > subfam. Onagroideae > tribe Onagreae > Clarkia > sect. Rhodanthos > subsect. Primigenia Onagraceae > subfam. Onagroideae > tribe Onagreae > Clarkia > sect. Phaeostoma > subsect. Sympherica
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. 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. biloba, C. borealis, C. bottae, C. breweri, C. concinna, 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. cylindrica subsp. clavicarpa, C. cylindrica subsp. cylindrica
Synonyms Godetiabottae spach var. cylindrica
Name authority H. Lewis & P. H. Raven: Brittonia 10: 7, fig. 1a, b, d. (1958) (Jepson) H. Lewis & M. E. Lewis: Madroño 12: 33. (1953) — (as cyclindrica)
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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