Clarkia rubicunda
Clarkia biloba
farewell-to-spring, ruby chalice clarkia
two lobed clarkia, twolobe clarkia
erect or decumbent, to 150 cm, puberulent;
buds erect.
erect, 30–100 cm, strigillose.
petiole to 10 mm;
blade lanceolate to elliptic, 1–4 cm.
petiole to 15 mm;
blade linear to lanceolate, 2–8 cm.
open or dense spikes or racemes, axis straight;
buds erect.
open racemes, axis recurved at tip in bud;
buds pendent.
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.
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.
20–40 mm;
pedicel 0–25(–40) mm.
10–25 mm.
brown to grayish brown, 1.2–1.5 mm, scaly, crest 0.2 mm.
brown, 1 mm, minutely scaly to puberulent, crest inconspicuous.
= 14.
Clarkia rubicunda
Clarkia biloba
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.)
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.)
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. | Clarkia biloba subsp. brandegeeae |
CA
WildflowerSearch
iNaturalist
USDA Plants Database
