Flora of North America species comparison

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Clarkia rubicunda

farewell-to-spring, ruby chalice clarkia
Stems

erect or decumbent, to 150 cm, puberulent;

buds erect.
Leaves

petiole to 10 mm;

blade lanceolate to elliptic, 1–4 cm.
Inflorescences

open or dense spikes or racemes, axis straight;

buds erect.
Flowers

floral tube 4–10 mm;

sepals reflexed together to one side;

corolla bowl-shaped, petals pink to lavender, base red or purplish red, fan-shaped, 10–30 mm, apex erose;

stamens 8, subequal;

ovary cylindrical, 4-grooved, puberulent;

stigma exserted beyond anthers.
Capsules

20–40 mm;

pedicel 0–25(–40) mm.
Seeds

brown to grayish brown, 1.2–1.5 mm, scaly, crest 0.2 mm.
2n

= 14.

Clarkia rubicunda
Phenology Flowering May–Aug.
Habitat Openings in woodlands, forests, chaparral, coastal scrub.
Elevation 0–500 m. (0–1600 ft.)
Distribution
from FNA
CA
[WildflowerSearch map]
[BONAP county map]
Discussion

Clarkia rubicunda is known from the central coast of California, from Contra Costa and Marin counties south along the coast and foothills to northern San Luis Obispo County.

Clarkia rubicunda is probably a derivative of C. amoena and may be ancestral to C. franciscana. Clarkia rubicunda is distinguishable from some populations of C. amoena only by the absence of a red spot or group of spots near the middle of the petal and the presence of a red area at the base of the petal. Clarkia rubicunda can be distinguished from C. franciscana by the position of the stigma and size and shape of the petals. All three species differ in chromosome arrangement and hybrids are highly sterile.

(Discussion copyrighted by Flora of North America; reprinted with permission.)
Source FNA vol. 10.
Parent taxa Onagraceae > subfam. Onagroideae > tribe Onagreae > Clarkia > sect. Rhodanthos > subsect. Primigenia
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. jolonensis, C. lassenensis, C. lewisii, C. lingulata, C. mildrediae, C. modesta, C. mosquinii, C. prostrata, C. pulchella, C. purpurea, C. rhomboidea, C. rostrata, C. similis, C. speciosa, C. springvillensis, C. stellata, C. tembloriensis, C. unguiculata, C. virgata, C. williamsonii, C. xantiana
Synonyms Godetia rubicunda, C. rubicunda subsp. blasdalei, G. blasdalei
Name authority (Lindley) H. Lewis & M. E. Lewis: Madroño 12: 34. (1953)
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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