Skullcaps

Skullcaps (Scutellaria)

.....	....
1) fls in axillary or terminal racemes	.....
2) fls chiefly in terminal racemes	.....
3)lvs cordate to broadly truncate at base	Group I
3) lvs (median & upper) narrowed to rounded or rarely subcordate at base	.....
6) median & upper lvs crenate, the large more than 15mm wide	Group II
6) median & upper lvs entire, 4-15mm wide	Group III
2) fls chiefly or all in lateral racemes	Group IV
1) fls mostly solitary in the axils of ordinary foliage lvs	Group V

Group I

4) stem pubescent w simple or glandular, spreading or decurved hairs	heart-leaved s.c. (1.ovata) X; woods; MD s
4) stem (at the middle) glabrous or very sparsely & minutely pubescent with eglandular curved-ascending hairs	rock s.c. (3.saxatilis) woods, hillsides & moist cliffs, chiefly in the mts; DE to SC & TN

Group II

.....	median & upper lvs crenate, the large rmore than 14mm wide
7) calyx densely or sparsely pubescent w appressed eglandular hairs
8) racemes 5-many; lowerst pair of fls subtended by bracts
8) racemes 1; lowest pair of fls commonly subtended by foliage lvs
7calyx densely or sparsely pubescent w/ spreading glandular hairs

Group III -- median & upper lvs entire, 4-15mm wide

hyssop skullcap (7. integrifolia) fields & open woods; e MA to FL, esp on coastal plain

Group IV

.....	lvs thin, toothed	lvs coarsely serrate, acuminate
cor nearly straight, 5-8mm	maddog skullcap (8.lateriflora) moist bottomlands; NF to BC to GA	.....
cor curved upward from the cal, 8-12mm	.....	(9. S x churchilliana) moist woods; ME to NB, NS & QE

Group V

.....	lvs commonly 2-4 times as long as wide	lvs very often less than twice as long as wide	.....
.....	.....	petioles of typical median lvs 3-10mm; northeastern	petioles of typical median lvs mostly under 3mm; widespread
10)fls large; cor 1.5-2cm	marsh skullcap (10.galericulata) wet soil; s to DE	.....	.....
10)fls smaller; cor 6-12mm	.....	(9. S x churchilliana)	Leonard's s.c. (11. leonardii) OE lvs, small & appressed to stem; stem & cal eglandular; dry upland woods & prairies small s.c. (12. parvula) scalloped lvs w/out marginal hairs; stems & cal glandular & hair; prairies, upland woods, & rock ledges veined s.c. (13. nervosa) scalloped lvs; stems w/ spreading glandular hairs below, glabrous above or sparsely puberulent; moist woods; NJ s