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Key to ClarkiaView taxon page for Clarkia
(For a list of species in Clarkia, use the above link.) Jepson Manual glossary definitions can be seen by moving your cursor over words underlined with dots. 1. Fruit 2–3 mm, nut-like, indehiscent  Not opening inherently to release contents; usually pertaining to fruits. , 1–2-seeded ..... C. heterandra 1' Fruit > 5 mm, not nut-like, dehiscent  Opening at maturity to release contents; usually pertaining to anthers or fruits. , many-seeded 2. Stamens 4; petals 3-lobed 3. Petal length ± = width, middle lobe  1. A major expansion or bulge, such as on the margin of a leaf, sepal, or petal, or on the surface of an ovary. 2. The free tips of otherwise fused structures, such as sepals or petals; larger than teeth. narrower ..... C. breweri 3' Petal length ± 2 × width, lobes 1. A major expansion or bulge, such as on the margin of a leaf, sepal, or petal, or on the surface of an ovary. 2. The free tips of otherwise fused structures, such as sepals or petals; larger than teeth. ± equally wide ..... C. concinna 4. Stigma exserted  Protruding out of surrounding structure(s) (e.g., stamens exserted from corolla). beyond anthers; petals 15–30 mm ..... subsp. concinna 4' Stigma not exserted beyond anthers; petals 10–20 mm 2' Stamens 8; petals not 3-lobed 6. Axis of inflorescence in bud  1. An incompletely developed, more or less embryonic shoot, usually covered with bud scales. 2. An unopened flower, often protected by sepals. straight; buds  1. An incompletely developed, more or less embryonic shoot, usually covered with bud scales. 2. An unopened flower, often protected by sepals. erect  Upright; vertically oriented. or reflexed  Abruptly bent or curved downward or backward. 7. Buds reflexed; corolla rotate  Wheel-shaped, spreading, or saucer-shaped; often applied to a fused corolla with a short or nonexistent tube and a spreading limb. or bowl-shaped; inner anthers < outer, paler 8. Petal lobes 2, with slender tooth  1. A small, pointed projection, such as on the margin of a leaf, sepal, or petal. 2. The free tips of otherwise fused structures, such as sepals or petals (somewhat archaic usage); smaller than lobes. between ..... C. xantiana 8' Petals entire  Having margins that are continuous and smooth (i.e., without teeth, lobes, etc.). 10. Corolla bowl-shaped; petals not clawed 10' Corolla rotate; petals clawed 12. Petal claw < blade  Expanded portion of a leaf, petal, or other structure, generally flat but sometimes rolled, cylindric, wavy, or cupped. ..... C. delicata 13. Calyx and ovary puberulent  Minutely hairy. and with longer, straight, spreading  Oriented more or less perpendicularly to the axis of attachment; often, more or less horizontal. hairs < 3 mm ..... C. unguiculata 13' Calyx and ovary sparsely to densely puberulent, longer straight spreading hairs 0 14' Leaves gray-green or ± red, glaucous 7' Buds erect; corolla bowl-shaped; anthers alike 17. Sepals staying fused in 4s 18. Ovary and immature fruit 8-grooved 19. Petals 5–15 mm; immature fruit cylindric  Elongate, with parallel sides and, at any point, round in transverse section. ..... C. affinis 18' Ovary and immature fruit 4-grooved 21. Stem decumbent  lying mostly flat on the ground but with tips curving up. ; inflorescence dense; internode  Segment of an axis (generally a stem) between successive positions (nodes) from which one or more structures (especially leaves, buds, branches, or flowers) arise. generally < subtending flower ..... subsp. amoena 20' Petals with ± red spot or zone at base 17' Sepals all coming free or staying fused in 2s 23. Stigma not exserted beyond anthers; petals 5–15 mm 24. Stem generally erect; leaves generally linear  Elongate, with nearly parallel sides; narrower than elliptic or oblong. to lanceolate  Narrowly elongate, widest in the basal half, often tapered to an acute tip. , acute  Having a short-tapered, sharp tip, the sides convex or straight and converging at less than a right angle. ..... C. purpurea subsp. quadrivulnera 24' Stem prostrate  Lying flat on the ground. to decumbent; leaves elliptic  In the shape of a flattened circle or ellipse; wider than linear to obovate, tip generally obtuse  Having a short-tapered, blunt tip or base, the sides convex or straight and converging at more than a right angle. 23' Stigma exserted beyond anthers; petals generally 15–30 mm 26' Sepals fused to tip in bud 27. Inflorescence dense; ovary generally > distal internode 28. Hypanthium conspicuously veined; petals with a large wedge-shaped purple-red spot distally ..... C. imbricata 28' Hypanthium not conspicuously veined; petal spot near middle 29. Leaves broadly lanceolate to elliptic or ovate  Egg-shaped (i.e., widest below the middle) in two dimensions (i.e., in one plane), as a leaf. , glabrous to sparsely puberulent ..... C. purpurea subsp. purpurea 27' Inflorescence open; ovary generally < distal internode 30' Petals with red or red-purple spot 31' Petal spot near middle 6' Axis of inflorescence in bud recurved  Gradually curved downward or backward. at tip; buds pendent 33. Petal claw broad, 2-lobed 34. Stigma not exserted beyond anthers; petals 6–12 mm 34' Stigma exserted beyond anthers; petals generally > 12 mm 36. Axis of inflorescence in bud recurved within 3 nodes  Position on a stem from which one or more structures (especially leaves, buds, branches, or flowers) arise. of open flower; petal length 1.4–1.6 × width ..... C. mildrediae 36' Axis of inflorescence straight 4 or more nodes distal to open flower; petal length 1.6–3 × width 38' Flower buds obovate, tip obtuse 40' Petal length 1.9–3 × width 33' Petal claw 0 or < 2 mm, not lobed 43' Petals lavender to purple-pink, length generally < 1.5 × width 42' Petals entire, occasionally notched at tip 45. Anthers alike in size and color 46. Ovary and immature fruit conspicuously 8-grooved; fruit not wider distally 47. Stigma exserted beyond anthers; pedicel  Stalk of an individual flower in an inflorescence, or the corresponding structure in fruit. 5–15 mm ..... C. arcuata 46' Ovary and immature fruit 4- or rarely shallowly 8-grooved; fruit generally wider distally ..... C. gracilis 48' Petals 20–40 mm with a red spot near middle or red at base; stigma exserted beyond anthers 45' Anthers in 2 unlike series, inner smaller, paler 51. Stigma not exserted beyond anthers; petals 5–12 mm 52' Petals pale to dark pink, generally flecked, fading darker 51' Stigma exserted beyond anthers; petals 10–35 mm 54' Corolla bowl-shaped; petals fan-shaped 55' Ovary and immature fruit 4-grooved 56. Width of outer filaments ± 2 × inner; ring of hairs in hypanthium  Structure generally in the shape of a tube, cup, or bowl, derived from the fused lower portions of the perianth and stamens, from which these parts seem to arise, and to which the ovary wall is fused in an inferior ovary (to which the ovary wall is partially fused in a half-inferior ovary; from which the ovary is free in a superior ovary). below rim ..... C. cylindrica 56' Width of all filaments ± equal; ring of hairs in hypanthium at rim
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Elongate, widest at the middle, tapered to both ends.