| 1 |
Flowers in axils of mid and upper stem leaves, forming axillary racemes; floral leaves inconspicuous, bractlike, minute. |
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(2) |
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Flowers in axils of stem leaves and floral leaves of axillary fertile branches, inconspicuously crowded into axillary racemes; floral leaves similar to stem leaves, gradually reduced to bracts. |
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(4) |
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| 2 (1) |
Leaf blade broadly cuneate to rounded at base, undulate or remotely denticulate at margin, glabrous; corolla creamy yellow |
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78 Scutellaria delavayi |
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Leaf blade cordate to obliquely so at base, inconspicuously and remotely crenate at margin, at least adaxially ± hairy; corolla purplish to purple-red. |
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(3) |
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| 3 (2) |
Leaves sessile or subsessile, blade ovate, 1.9-3.5 × 0.9-2 cm |
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76 Scutellaria sessilifolia |
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Leaves with petiole 4-7 mm, blade ovate-oblong to oblong-lanceolate, 5-8 × 2-3.5 cm |
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77 Scutellaria caudifolia |
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| 4 (1) |
Plants much branched, all branches fertile; leaves ovate-lanceolate to linear-lanceolate. |
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(5) |
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Plants few branched, some branches fertile; leaves ovate. |
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(6) |
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| 5 (4) |
Corolla ca. 2 cm; leaves subrhomboid- to ovate-lanceolate, incised-serrate on apical 2/3 |
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58 Scutellaria incisa |
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Corolla ca. 1.3 cm; leaves linear-lanceolate, inconspicuously 1- or 2-undulate-crenate apically |
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59 Scutellaria subintegra |
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| 6 (4) |
Fertile branches much elongated; flowers inserted in leaf axils; floral leaves similar to stem leaves, reduced. |
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(7) |
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Fertile branches short; flowers of basal fertile branches inserted only toward apex; flowers of upper fertile branches inserted along entire length; floral leaves reduced to bracts. |
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(14) |
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| 7 (6) |
Leaves subglabrous or very sparsely pubescent. |
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(8) |
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Leaves hirtellous, strigose, or pilose. |
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(9) |
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| 8 (7) |
Leaves 1.2-2.5 × 0.7-2.1 cm, pubescent and yellow glandular, margin coarsely 1-3-crenate; flowers purple or purple-blue, inserted on abbreviated fertile branches |
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60 Scutellaria axilliflora |
| + |
Leaves to 6.2 × ca. 3 cm, subglabrous, abaxially with scattered scarlet glands, margin remotely undulate-crenate; flowers yellowish, inserted on elongated fertile branches |
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61 Scutellaria lotienensis |
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| 9 (7) |
Stems with spreading, slightly flaccid, white hirsute hairs. |
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(10) |
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Stems with upwardly or downwardly curved puberulent, pubescent, or hirtellous hairs. |
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(11) |
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| 10 (9) |
Plants few branched herbs; leaf base cordate, blade not corrugate; racemes 4-11 cm; scutellum on upper lip of calyx inconspicuously enlarged in fruit, oblate, ca. 2.5 × 4 mm; corolla tube hairy inside |
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62 Scutellaria pingbienensis |
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Plants much branched subshrubs; leaf base broadly cuneate to roundish, blade slightly corrugate; racemes 7-27 cm; scutellum on upper lip of calyx conspicuously enlarged in fruit, subcircular, ca. 5 × 5 mm; corolla tube glabrous inside |
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63 Scutellaria shweliensis |
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| 11 (9) |
Leaves 0.9-2.2 × 0.4-1.4 cm, 2- or 3-crenate |
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64 Scutellaria wongkei |
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Leaves 2-7 × (1.3-)1.5-4.6 cm, with many crenations. |
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(12) |
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| 12 (11) |
Fertile branches less than 10 cm, inflorescences terminal and lateral; leaves triangular-ovate, coarsely dentate or sometimes double dentate |
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65 Scutellaria hunanensis |
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Fertile branches more than 10 cm; inflorescences terminal; leaves ovate, regularly crenate. |
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(13) |
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| 13 (12) |
Stem leaves 2-5 × 1.5-3 cm, rounded to truncate at base, sparsely finely strigose; stems sparsely puberulent |
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66 Scutellaria bambusetorum |
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Stem leaves 6.5-7 × 4-4.6 cm, cordate at base, densely pilose; stems densely, retrorsely yellowish pubescent |
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67 Scutellaria chimenensis |
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| 14 (6) |
Middle lobe of lower corolla lip equally 4-lobed. |
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(15) |
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Middle lobe of lower corolla lip subentire or emarginate. |
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(16) |
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| 15 (14) |
Stems conspicuously winged, glabrous except at nodes; leaves ca. 1.5 × 1.2 cm |
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70 Scutellaria weishanensis |
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Stems not winged, white puberulent or white pilose; middle stem leaves ca. 4 × 2.6 cm |
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71 Scutellaria quadrilobulata |
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| 16 (14) |
Leaves entire to 3- or 4-dentate at base, apex entire. |
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(17) |
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Leaves conspicuously crenate to coarsely double serrate. |
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(18) |
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| 17 (16) |
Leaves 1.5-3(-4.5) × 1-2(-2.5) cm, apex acuminate to caudate-acuminate, margin 3- or 4-dentate, base and apex entire; corolla to 2.5 cm, tube ca. 1.5 mm wide at middle, gradually dilated apically, to 5 mm wide at throat |
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68 Scutellaria franchetiana |
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Leaves 2-3.5 × 1.2-1.5 cm, apex acute to subacute, margin ± entire or inconspicuously crenate; corolla 1.8-2 cm, tube ca. 0.7 mm wide, gradually dilated apically, to ca. 4 mm at throat |
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69 Scutellaria stenosiphon |
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| 18 (16) |
Stems subglabrous or densely appressed, white pilose on angles, otherwise glabrous; leaves crenate to coarsely double serrate |
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74 Scutellaria omeiensis |
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Stems densely puberulent or floccose-pilose with upwardly curved hairs; leaves regularly crenate-serrate to acute-serrate. |
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(19) |
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| 19 (18) |
Stems densely floccose-pilose |
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72 Scutellaria tenuiflora |
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Stems with dense, upwardly curved puberulent hairs. |
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(20) |
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| 20 (19) |
Leaves lanceolate-ovate, acute-serrate, abaxially densely purple-red glandular |
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73 Scutellaria honanensis |
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Leaves ovate, serrate, abaxially without glands |
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75 Scutellaria scandens |
