1	"Stem with minute reflexed prickles; lower leaves alternate"	"Nemophila breviflora"
1	"Stem without reflexed prickles; lower leaves opposite (except <i>Nemophila pulchella</i> var. <i>gracilis</i>)"	2
2	"Corolla >= 10 mm wide (6--40 mm wide in <i>Nemophila menziesii</i>)"	3
2	"Corolla < 10(12) mm wide"	8
3	"Seeds smooth or pitted; corolla with or without purple spot at lobe tips"	4
3	"Seeds wrinkled and tubercled; corolla without purple spot at lobe tips"	5
4	"Corolla 10--50 mm wide; style 3--6 mm"	"Nemophila maculata"
4	"Corolla 2--10 mm wide; style < 2 mm"	"Nemophila spatulata"
5	"Upper, lower leaves dissimilar, lower lobed, upper entire to toothed"	6
5	"Upper, lower leaves similar, deep-5--13-lobed"	7
6	"Lower leaves 5--7-lobed; corolla 6--15 mm wide"	"Nemophila menziesii var. integrifolia"
6	"Lower leaves 6--13-lobed; corolla 10--40 mm wide"	"Nemophila menziesii var. menziesii"
7	"Corolla white, black-dotted from center +- to margin"	"Nemophila menziesii var. atomaria"
7	"Corolla blue with white center or blue-veined, generally black-dotted at center"	"Nemophila menziesii var. menziesii"
8	"Corolla generally rotate; filaments > corolla tube"	9
8	"Corolla bell- to bowl-shaped; filaments <= corolla tube"	12
9	"Calyx appendages 1--4 mm in fruit; seeds wrinkled and tubercled"	"Nemophila menziesii var. integrifolia"
9	"Calyx appendages 0--0.5 mm in fruit; seeds smooth or +- rough"	10
10	"Corolla blue with white center, >> calyx; style 2--3 mm"	"Nemophila pulchella var. pulchella"
10	"Corolla white, +- >= calyx; style <= 2 mm"	11
11	"Cauline leaves opposite; style < 1 mm; seeds 2--4"	"Nemophila pulchella var. fremontii"
11	"Cauline leaves alternate; style 1--2 mm; seed generally 1"	"Nemophila pulchella var. gracilis"
12	"Corolla generally dark-veined, dotted, lobes occasionally purple-spotted"	13
12	"Corolla not dark-veined, dotted, lobes not purple-spotted"	14
13	"Leaf oblong to ovate, deep-5--9-lobed"	"Nemophila pedunculata"
13	"Leaf oblanceolate to spoon-shaped, shallow-3--5-lobed"	"Nemophila spatulata"
14	"Style 2--4 mm; lower leaves deep-lobed, lobes similar, generally well separated, stalked"	"Nemophila heterophylla"
14	"Style < 2 mm; lower leaves cut or shallow-lobed, lobes dissimilar, merging or not stalked"	15
15	"Upper leaves alternate, lobes deep, generally acute"	"Nemophila parviflora var. parviflora"
15	"Upper leaves opposite, lobes shallow, rounded or obtuse"	16
16	"Leaf glabrous to bristly, blade base tapered"	"Nemophila parviflora var. austiniae"
16	"Leaf long-hairy, blade base truncate or cordate"	"Nemophila parviflora var. quercifolia"