1 "Fruit 2--3 mm, nut-like, indehiscent, 1--2-seeded" "Clarkia heterandra" 1 "Fruit > 5 mm, not nut-like, dehiscent, many-seeded" 2 2 "Stamens 4; petals 3-lobed" 3 2 "Stamens 8; petals not 3-lobed" 6 3 "Petal length +- = width, middle lobe narrower" "Clarkia breweri" 3 "Petal length +- 2 × width, lobes +- equally wide" 4 4 "Stigma exserted beyond anthers; petals 15--30 mm" "Clarkia concinna subsp. concinna" 4 "Stigma not exserted beyond anthers; petals 10--20 mm" 5 5 "Petal lobes prominent, separated by deep sinuses" "Clarkia concinna subsp. automixa" 5 "Petal lobes short, not separated by deep sinuses" "Clarkia concinna subsp. raichei" 6 "Axis of inflorescence in bud straight; buds erect or reflexed" 7 6 "Axis of inflorescence in bud recurved at tip; buds pendent" 33 7 "Buds reflexed; corolla rotate or bowl-shaped; inner anthers < outer, paler" 8 7 "Buds erect; corolla bowl-shaped; anthers alike" 17 8 "Petal lobes 2, with slender tooth between" 9 8 "Petals entire" 10 9 "Petals 6--12 mm; stigma not exserted beyond anthers" "Clarkia xantiana subsp. parviflora" 9 "Petals 12--20 mm; stigma exserted beyond anthers" "Clarkia xantiana subsp. xantiana" 10 "Corolla bowl-shaped; petals not clawed" 11 10 "Corolla rotate; petals clawed" 12 11 "Seeds brown; s SCoRO (San Luis Obispo Co. and s), SCo, WTR, nw PR" "Clarkia bottae" 11 "Seeds gray; n SCoRO (Monterey Co.)" "Clarkia jolonensis" 12 "Petal claw < blade" "Clarkia delicata" 12 "Petal claw >= blade" 13 13 "Calyx and ovary puberulent and with longer, straight, spreading hairs < 3 mm" "Clarkia unguiculata" 13 "Calyx and ovary sparsely to densely puberulent, longer straight spreading hairs 0" 14 14 "Leaves bright green, not glaucous" "Clarkia exilis" 14 "Leaves gray-green or +- red, glaucous" 15 15 "Sepals generally dark red-purple --- stigma exserted beyond anthers" "Clarkia springvillensis" 15 "Sepals green, red-tinged or not" 16 16 "Petals +- 10 mm wide; stigma not exserted beyond anthers" "Clarkia tembloriensis subsp. calientensis" 16 "Petals generally < 10 mm wide; stigma exserted beyond anthers or not" "Clarkia tembloriensis subsp. tembloriensis" 17 "Sepals staying fused in 4s" 18 17 "Sepals all coming free or staying fused in 2s" 23 18 "Ovary and immature fruit 8-grooved" 19 18 "Ovary and immature fruit 4-grooved" 20 19 "Petals 5--15 mm; immature fruit cylindric" "Clarkia affinis" 19 "Petals 30--60 mm; immature fruit fusiform" "Clarkia amoena subsp. whitneyi" 20 "Petals with red spot or marks near middle" 21 20 "Petals with +- red spot or zone at base" 22 21 "Stem decumbent; inflorescence dense; internode generally < subtending flower" "Clarkia amoena subsp. amoena" 21 "Stem erect; inflorescence open; internode generally > subtending flower" "Clarkia amoena subsp. huntiana" 22 "Petals 5--13 mm; stigma not exserted beyond anthers" "Clarkia franciscana" 22 "Petals 10--30 mm; stigma exserted beyond anthers" "Clarkia rubicunda" 23 "Stigma not exserted beyond anthers; petals 5--15 mm" 24 23 "Stigma exserted beyond anthers; petals generally 15--30 mm" 26 24 "Stem generally erect; leaves generally linear to lanceolate, acute" "Clarkia purpurea subsp. quadrivulnera" 24 "Stem prostrate to decumbent; leaves elliptic to obovate, tip generally obtuse" 25 25 "Petals 5--11 mm, spot 0" "Clarkia davyi" 25 "Petals 10--15 mm, +- red spot above base" "Clarkia prostrata" 26 "Sepals free at tip in bud" "Clarkia williamsonii" 26 "Sepals fused to tip in bud" 27 27 "Inflorescence dense; ovary at flowering > distal internode" 28 27 "Inflorescence open; ovary at flowering < distal internode" 30 28 "Hypanthium conspicuously veined; petals with a large wedge-shaped purple-red spot distally" "Clarkia imbricata" 28 "Hypanthium not conspicuously veined; petal spot near middle" 29 29 "Leaves broadly lanceolate to elliptic or ovate, glabrous to sparsely puberulent" "Clarkia purpurea subsp. purpurea" 29 "Leaves lanceolate, puberulent" "Clarkia speciosa subsp. nitens" 30 "Petals lacking red or red-purple spot" "Clarkia speciosa subsp. immaculata" 30 "Petals with red or red-purple spot" 31 31 "Petal spot distal (darker proximally or not)" "Clarkia purpurea subsp. viminea" 31 "Petal spot near middle" 32 32 "Flowers many on well-developed branches; s SNF, Teh" "Clarkia speciosa subsp. polyantha" 32 "Flowers few on well-developed branches; SCoR" "Clarkia speciosa subsp. speciosa" 33 "Petal claw broad, 2-lobed" 34 33 "Petal claw 0 or < 2 mm, not lobed" 42 34 "Stigma not exserted beyond anthers; petals 6--12 mm" 35 34 "Stigma exserted beyond anthers; petals generally > 12 mm" 36 35 "Petals generally spotted; pollen blue-gray" "Clarkia rhomboidea" 35 "Petals unspotted; pollen yellow" "Clarkia stellata" 36 "Axis of inflorescence in bud recurved within 3 nodes of open flower; petal length 1.4--1.6 × width" 37 36 "Axis of inflorescence straight 4 or more nodes distal to open flower; petal length 1.6--3 × width" 38 37 "Anthers yellow to orange-red or red; fresh pollen yellow to tan" "Clarkia mildrediae subsp. lutescens" 37 "Anthers magenta; fresh pollen blue-gray" "Clarkia mildrediae subsp. mildrediae" 38 "Flower buds fusiform, tip acute" 39 38 "Flower buds obovate, tip obtuse" 40 39 "Seed 1.8--2.5 mm; CaRF" "Clarkia borealis subsp. arida" 39 "Seed 1.5--1.8 mm; KR" "Clarkia borealis subsp. borealis" 40 "Petal length 1.6--2 × width" "Clarkia mosquinii" 40 "Petal length 1.9--3 × width" 41 41 "Leaves lance-linear" "Clarkia australis" 41 "Leaves elliptic to ovate" "Clarkia virgata" 42 "Petals 2-lobed" 43 42 "Petals entire, occasionally notched at tip" 45 43 "Petals bright pink to magenta, length generally > 1.5 × width" "Clarkia biloba subsp. australis" 43 "Petals lavender to purple-pink, length generally < 1.5 × width" 44 44 "Petal lobes generally 1/5--1/2 petal length" "Clarkia biloba subsp. biloba" 44 "Petal lobes generally < 1/5 petal length" "Clarkia biloba subsp. brandegeeae" 45 "Anthers alike in size and color" 46 45 "Anthers in 2 unlike series, inner smaller, paler" 51 46 "Ovary and immature fruit conspicuously 8-grooved; fruit not wider distally" 47 46 "Ovary and immature fruit 4- or rarely shallowly 8-grooved; fruit generally wider distally" 48 47 "Stigma exserted beyond anthers; pedicel 5--15 mm" "Clarkia arcuata" 47 "Stigma not exserted beyond anthers; pedicel 0--3 mm" "Clarkia lassenensis" 48 "Petals 6--23 mm, spot 0, base darker or not; stigma not exserted beyond anthers" "Clarkia gracilis subsp. gracilis" 48 "Petals 20--40 mm with a red spot near middle or red at base; stigma exserted beyond anthers" 49 49 "Petals with a red spot near middle" "Clarkia gracilis subsp. sonomensis" 49 "Petals red at base" 50 50 "Petals generally 30--40 mm; s CaRF" "Clarkia gracilis subsp. albicaulis" 50 "Petals generally 20--30 mm; NCoRI" "Clarkia gracilis subsp. tracyi" 51 "Stigma not exserted beyond anthers; petals 5--12 mm" 52 51 "Stigma exserted beyond anthers; petals 10--35 mm" 54 52 "Petals white, not flecked, fading pink" "Clarkia epilobioides" 52 "Petals pale to dark pink, generally flecked, fading darker" 53 53 "Petals pink, not lighter near base, generally darker flecked" "Clarkia modesta" 53 "Petals pale pink, shading lighter near base, purple flecked" "Clarkia similis" 54 "Corolla rotate; petals oblanceolate" "Clarkia lingulata" 54 "Corolla bowl-shaped; petals fan-shaped" 55 55 "Ovary and immature fruit 8-grooved" "Clarkia dudleyana" 55 "Ovary and immature fruit 4-grooved" 56 56 "Width of outer filaments +- 2 × inner; ring of hairs in hypanthium below rim" 57 56 "Width of all filaments +- equal; ring of hairs in hypanthium at rim" 58 57 "Fruit wider distally" "Clarkia cylindrica subsp. clavicarpa" 57 "Fruit cylindric" "Clarkia cylindrica subsp. cylindrica" 58 "Fruit beak 0--3 mm" "Clarkia lewisii" 58 "Fruit beak 7--15 mm" "Clarkia rostrata"