The Plants of Michigan - LightNovelsOnl.com
You're reading novel online at LightNovelsOnl.com. Please use the follow button to get notifications about your favorite novels and its latest chapters so you can come back anytime and won't miss anything.
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 (5-12 dm. high; summer) (False Foxglove) --13.
10a. Leaves alternate (2-5 dm. high; summer) =b.u.t.ter-and-eggs, Linaria vulgaris.=
10b. Leaves opposite --11.
11a. Stem erect; leaves narrowed at the base --30b.
11b. Stem creeping or spreading (summer) --12.
12a. Leaves pinnately veined, ovate =Musk Flower, Mimulus moschatus.=
12b. Leaves palmately veined, circular or nearly so =Yellow Monkey Flower, Mimulus glabratus var. jamesii.=
13a. Stem glabrous --14.
13b. Stem p.u.b.escent --15.
14a. Princ.i.p.al stem-leaves pinnatifid =False Foxglove, Gerardia virginica.=
14b. Princ.i.p.al stem-leaves entire =False Foxglove, Gerardia laevigata.=
15a. Corolla hairy on the outside =False Foxglove, Gerardia pedicularia.=
15b. Corolla smooth on the outside =False Foxglove, Gerardia flava.=
16a. Leaves all basal; flowers on leafless stalks (1 dm. high or less; flowers pink or white, summer) =Mudwort, Limosella aquatica var. tenuifolia.=
16b. Leaves opposite (those subtending the flowers may be alternate) --20.
16c. Leaves alternate or irregularly scattered --17.
17a. Leaves entire --18.
17b. Leaves pinnately lobed or incised --8a.
17c. Leaves palmately veined and lobed; stem trailing (flowers blue, summer) =Kenilworth Ivy, Linaria cymbalaria.=
18a. Corolla-tube less than 1 cm. long, spurred --19.
18b. Corolla more than 2 cm. long, not spurred (3-8 dm. high; flowers red-purple, summer) =Snapdragon, Antirrhinum majus.=
19a. Stem and foliage p.u.b.escent (1-3 dm. high; flowers blue, summer) =Small Snapdragon, Linaria minor.=
19b. Stem and foliage glabrous (2-6 dm. high; flowers blue, summer) =Toad-flax, Linaria canadensis.=
20a. Leaves with 1 or 2 lobes near the base (3-5 dm. high; flowers purple, summer) =Gerardia, Gerardia auriculata.=
20b. Leaves linear (2-6 dm. high; flowers rose-purple, summer and autumn) (Gerardia) --21.
20c. Leaves lanceolate or broader, not lobed --26.
21a. Pedicels equaling or but little longer than the calyx, and conspicuously shorter than the subtending leaf --22.
21b. Pedicels much longer than the calyx, and generally equaling or exceeding the subtending leaf --24.
22a. Plants of moist ground, bogs, and sh.o.r.es --23.
22b. Plants of dry uplands =Gerardia, Gerardia aspera.=
23a. Corolla about 25 mm. long =Gerardia, Gerardia purpurea.=
23b. Corolla less than 20 mm. long =Gerardia, Gerardia paupercula.=
24a. Stem rough on the angles --25.
24b. Stem glabrous =Gerardia, Gerardia tenuifolia.=
25a. Leaves 2-5 mm. wide =Gerardia, Gerardia tenuifolia var. macrophylla.=
25b. Leaves thread-like, 1 mm. wide or less =Gerardia, Gerardia skinneriana.=
26a. Corolla 16 mm. long, or shorter --27.
26b. Corolla 20 mm. long, or longer --32.
27a. Corolla dull-purple, brown, or greenish; one sterile stamen present (1-2.5 m. high; flowers in summer) (Figwort) --28.
27b. Corolla blue or white (1-4 dm. high) --29.
28a. Sterile stamen purple =Figwort, Scrophularia marilandica.=
28b. Sterile stamen yellow =Figwort, Scrophularia leporella.=
29a. Flowers nearly or quite sessile (summer) --30.
