1	"Shrub; calyx lobes bladder-like in fruit; s SNE, D --- lateral branches rigid, tips spine-like in age"	"Scutellaria mexicana"
1	"Perennial herb; calyx lobes not bladder-like in fruit; widespread"	2
2	"Corolla white to pale yellow, lower lip occasionally blue- to violet-spotted"	3
2	"Corolla blue to violet-blue, lower lip generally white-patched"	6
3	"Distal cauline leaf blade crenate (entire), base truncate to +- lobed; stem hairs long, spreading; lower corolla lip blue-spotted"	4
3	"Distal cauline leaf blade entire, base obtuse to wedge-shaped; stem hairs short, ascending or pointed down; lower corolla lip violet-spotted or not"	5
4	"Corolla 12--14 mm; leaf length > 2 × width; SnBr, PR, s DMoj"	"Scutellaria bolanderi subsp. austromontana"
4	"Corolla 15--19 mm; leaf length 1--2 × width; SN, SCoRI"	"Scutellaria bolanderi subsp. bolanderi"
5	"Stem 1.5--4 dm, hairs appressed-ascending; ovary disk green-yellow; leaf blade ovate to oblong"	"Scutellaria californica"
5	"Stem < 2 dm, hairs pointed or curled down; ovary disk orange-red; leaf blade obovate to +- diamond-shaped"	"Scutellaria nana"
6	"Flowers generally > 4 in axillary or terminal racemes, bracted"	"Scutellaria lateriflora"
6	"Flowers 1, axillary, subtended by leaves"	7
7	"Upper calyx lip abaxially dome-like; fruit brown; generally wet habitats"	"Scutellaria galericulata"
7	"Upper calyx lip abaxially transversely ridged, +- concave behind ridge; fruit black; generally dry habitats"	8
8	"Stem, leaf hairs 1--3 mm, spreading; plants with tubers"	"Scutellaria tuberosa"
8	"Stem, leaf hairs << 0.5 mm, curled or appressed; rhizomes slender, tubers +- 0"	9
9	"Corolla 13--21 mm, hairs not gland-tipped; leaf length 2--3 &times; width"	"Scutellaria antirrhinoides"
9	"Corolla 25--35 mm, hairs gland-tipped; leaf length 3--7 &times; width"	"Scutellaria siphocampyloides"