Clarkia borealis
Clarkia borealis subsp. borealis
northern clarkia
northern clarkia
erect, to 100 cm, puberulent.
petiole 15–40 mm;
blade elliptic to ovate, 2–6 cm.
open racemes, axis recurved only at tip in bud, straight 4+ nodes distal to open flowers;
buds pendent, fusiform, base slightly swollen, tip acute.
floral tube 2–4 mm;
sepals reflexed individually;
corolla rotate, petals lavender-pink, often dark-flecked, obdeltate to suborbiculate, unlobed, 13–19 ×7–12 mm, length 1.6–2 times width;
stamens 8, subequal, subtended by ciliate scales, pollen blue-gray;
ovary shallowly 4-grooved, puberulent;
stigma exserted beyond anthers.
20–30 mm;
pedicel 0–3 mm.
light brown or mottled with dark spots, 1.5–2.5 mm, minutely tuberculate, crest 0.2 mm.
1.5–1.8 mm.
= 14.
Clarkia borealis
Clarkia borealis subsp. borealis
Subspecies 2 (2 in the flora).
Clarkia borealis is closely related, and possibly ancestral, to C. mildrediae. The two species can be distinguished most readily by the degree of curvature of the inflorescence and the petal color.
(Discussion copyrighted by Flora of North America; reprinted with permission.)
Subspecies borealis is known only from western Shasta and eastern Trinity counties and is listed as rare by the California Native Plant Society.
(Discussion copyrighted by Flora of North America; reprinted with permission.)
1. Seeds 1.5–1.8 mm. | subsp. borealis |
1. Seeds 1.8–2.5 mm. | subsp. arida |
CA
WildflowerSearch
iNaturalist
USDA Plants Database
