Flora of North America species comparison

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Clarkia imbricata

Clarkia concinna

Vine Hill clarkia

red ribbons
Stems

erect, to 60 cm, glabrous or sparsely puberulent.

erect, to 40 cm, glabrous or puberulent.
Leaves

petiole 0–2 mm;

blade lanceolate, 2–2.5 cm.

petiole 5–25 mm;

blade lanceolate to elliptic or ovate, 1–4.5 cm.
Inflorescences

dense racemes, axis straight;

buds erect.

racemes, axis suberect or slightly recurved;

buds pendent.
Flowers

floral tube 10–15 mm, conspicuously veined, lavender striate within;

sepals reflexed individually;

corolla bowl-shaped, petals lavender shading to white proximally, with large, wedge-shaped purplish red spot near apex, 20–25 mm;

stamens 8, subequal;

ovary 8-grooved, longer than adjacent internode;

stigma exserted beyond anthers.

floral tube 13–25 mm;

sepals reflexed together to 1 side, sometimes nearly separating, petal-like, pink or red;

corolla rotate, petals bright pink, usually white-streaked, narrowly fan-shaped, 10–30 mm, length 2 times width, tapered to a ± distinct claw, lobes ± equal or middle lobe wider, usually oblanceolate;

stamens 4, filaments not wider distally;

ovary 8-grooved;

stigma exserted or not beyond anthers.
Capsules

10–15 mm.

15–20 mm;

sessile.
Seeds

brown or gray, 2 mm, scaly, crest 0.2 mm.

reddish brown, 2–3 mm, scaly, crest to 0.8 mm, conspicuous.
2n

= 16.

Clarkia imbricata

Clarkia concinna
Phenology Flowering Jun–Jul.
Habitat Clearings, roadsides, chaparral.
Elevation 50 m. (200 ft.)
Distribution
from FNA
CA
[BONAP county map]
from USDA
California
[WildflowerSearch map]
[BONAP county map]
Discussion

Clarkia imbricata, known from only one small area of Sonoma County, is designated as rare by the California Native Plant Society, and is in the Center for Plant Conservation’s National Collection of Endangered Plants; it is a relict of a lineage with 2n = 16 that presumably contributed a genome to the tetraploid species C. davyi and the South American C. tenella.

Morphologically, Clarkia imbricata is most similar to C. speciosa, C. williamsonii, and some populations of C. purpurea. Clarkia imbricata can be distinguished from C. speciosa by the color pattern of the petals and from C. williamsonii and populations of C. purpurea with similar flower size and color pattern by its broader, ascending, overlapping leaves.

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

Subspecies 3 (3 in the flora).

The two self-pollinating subspecies with smaller flowers probably arose independently from the outcrossing subsp. concinna.

(Discussion copyrighted by Flora of North America; reprinted with permission.)
Key
1. Stigmas exserted beyond anthers; petals 15–30 mm.
subsp. concinna
1. Stigmas not exserted beyond anthers; petals 10–20 mm.
→ 2
2. Sepals remaining connate only near tip; petal lobes prominent, blades gradually tapered to distinct claw.
subsp. automixa
2. Sepals remaining connate in distal 2/3; petal lobes short, blades abruptly tapered to inconspicuous claw.
subsp. raichei
Source FNA vol. 10. FNA vol. 10.
Parent taxa Onagraceae > subfam. Onagroideae > tribe Onagreae > Clarkia > sect. Godetia Onagraceae > subfam. Onagroideae > tribe Onagreae > Clarkia > sect. Eucharidium
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. 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. 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. concinna subsp. automixa, C. concinna subsp. concinna, C. concinna subsp. raichei
Synonyms Eucharidium concinnum
Name authority H. Lewis & M. E. Lewis: Madroño 12: 38. (1953) (Fischer & C. A. Meyer) Greene: Pittonia 1: 140. (1887)
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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