r slightly pubescent, not viscid --17.

17a. Leaves and stem distinctly pubescent
=Ground Cherry, Physalis virginiana.=

17b. Leaves and stem almost glabrous
=Ground Cherry, Physalis subglabrata.=

SCROPHULARIACEAE, the Figwort Family

Herbs with opposite or alternate leaves and usually irregular flowers;
corolla of united petals, bearing the 2 or 4 (or rarely 5) stamens
attached; petals actually 5, but sometimes apparently only 2 or 4; a
sterile fifth stamen sometimes present; ovary superior, 2-celled.

1a. Anther-bearing stamens 5 (6-15 dm. high; flowers in summer)
(Mullein) --2.

1b. Anther-bearing stamens 4; a sterile fifth stamen may or may not be
present --3.

1c. Anther-bearing stamens 2 --37.

2a. Leaves densely white-woolly; flowers yellow, in dense spikes
=Mullein, Verbascum thapsus.=

2b. Leaves smooth or nearly so; flowers yellow or white, in loose
racemes =Moth Mullein, Verbascum blattaria.=

3a. Flowers (not the bracts) greenish-yellow, yellow, or orange --4.

3b. Flowers blue, purple, brown, red, pink, or white, never yellow --16.

4a. Flowers in dense terminal leafy-bracted spikes --5.

4b. Flowers in loose racemes or axillary --9.

5a. Corolla 7 mm. long or less, or none --6.

5b. Corolla 12 mm. long or more --7.

6a. Leaves alternate (3-6 dm. high; early summer)
=Synthyris, Synthyris bullii.=

6b. Leaves opposite (1-2 dm. high; summer)
=Eyebright, Euphrasia arctica.=

7a. Stem-leaves entire (2-6 dm. high; summer)
=Painted Cup, Castilleja pallida var. septentrionalis.=

7b. Stem-leaves palmately lobed, bracteal leaves scarlet (3-6 dm. high;
early summer) =Painted Cup, Castilleja coccinea.=

7c. Stem-leaves pinnately lobed or incised (Lousewort) --8.

8a. Flowers in spring (2-4 dm. high)
=Lousewort, Pedicularis canadensis.=

8b. Flowers in late summer (3-8 dm. high)
=Lousewort, Pedicularis lanceolata.=

9a. Upper lip of the corolla very different in size and shape from the
lower lip --10.

9b. Upper lip of the corolla resembling the lower lip in shape, and not
very different in size (5