Clarkia stellata
Clarkia biloba
Lake Almanor clarkia, lake amador clarkia
two lobed clarkia, twolobe clarkia
erect, to 100 cm, puberulent.
erect, 30–100 cm, strigillose.
petiole 5–30 mm;
blade lanceolate to elliptic or ovate, 1–5 cm.
petiole to 15 mm;
blade linear to lanceolate, 2–8 cm.
open racemes, axis in bud recurved 1–3 nodes distal to open flowers;
buds pendent, narrowly obovoid, tip acute.
open racemes, axis recurved at tip in bud;
buds pendent.
floral tube 1.5–2 mm;
sepals reflexed individually;
corolla rotate, petals lavender-purple, not dark-flecked or spotted, obovate, 6–8 × 3–5 mm, inconspicuously 3-lobed;
stamens 8, subequal, subtended by ciliate scales, pollen yellow;
ovary shallowly 4-grooved, puberulent;
stigma not 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.
20–25 mm;
pedicel 1–3 mm.
10–25 mm.
unknown.
brown, 1 mm, minutely scaly to puberulent, crest inconspicuous.
= 14.
Clarkia stellata
Clarkia biloba
Clarkia stellata is known from the southern Cascade–northern Sierra Nevada region, including Lassen, Nevada, Plumas, Shasta, Sierra, and Tehama counties (with unverified reports from Butte and Modoc counties).
Clarkia stellata is probably a self-pollinating derivative of C. mildrediae subsp. lutescens, to judge from pollen color. The two species are readily distinguishedby the much smaller flowers of C. stellata and the position of the stigma. Hybrids have low fertility due to chromosomal rearrangement. Clarkia stellata is morphologically very similar to the self-pollinating tetraploid C. rhomboidea but can be distinguished from it by yellow pollen and shallowly lobed, unspotted petals.
(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. | subsp. brandegeeae |
CA
WildflowerSearch
iNaturalist
USDA Plants Database
