=Blue-eyed Grass, Sisyrinchium hastile.=

7b. Leaves flat; stem broadly winged, 2-3 mm. wide
=Blue-eyed Grass, Sisyrinchium albidum.=

8a. Capsules pale straw-color or whitish --9.

8b. Capsules brown, or tinged with purple --10.

9a. Plant with straight fibrous bristles at base; pedicels long-exserted
=Blue-eyed Grass, Sisyrinchium farwellii.=

9b. Plants not bristly at base; pedicels barely exserted
=Blue-eyed Grass, Sisyrinchium strictum.=

10a. Pedicels scarcely exceeding the inner bract --6a.

10b. Pedicels much exceeding the inner bract --11.

11a. Stem 2-6 mm. wide; bracts 1.5-2 cm. long
=Blue-eyed Grass, Sisyrinchium gramineum.=

11b. Stem 1-2 mm. wide; bracts 1-1.5 cm. long
=Blue-eyed Grass, Sisyrinchium apiculatum.=

ORCHIDACEAE, the Orchis Family

Herbs, with irregular flowers, one petal, the lip, differing from the
others in size and shape, inferior ovary, and one or two stamens
adherent to the style.

1a. Flowers in a spike-like obviously twisted raceme; small, yellowish
or greenish-white, in late summer and autumn (except 4a) (Ladies'
Tresses) --2.

1b. Flowers solitary or in clusters, but never in a twisted raceme --5.

2a. Flowers in 1 row =Ladies' Tresses, Spiranthes gracilis.=

2b. Flowers in several rows --3.

3a. Lip constricted near the apex
=Ladies' Tresses, Spiranthes romanzoftiana.=

3b. Lip not constricted --4.

4a. Lip yellow; flowers in spring and early summer
=Ladies' Tresses, Spiranthes lucida.=

4b. Lip white =Ladies' Tresses, Spiranthes cernua.=

5a. Brown, purple, or yellow plants, without green color, with
scale-like leaves (1-4 dm. high; summer) (Coral Root) --6.

5b. Plants with normal green color --9.

6a. Lip white, not spotted =Coral Root, Corallorrhiza trifida.=

6b. Lip white, spotted with red --7.

7a. Lip distinctly 3-lobed =Coral Root, Corallorrhiza maculata.=

7b. Lip entire, or barely toothed --8.

8a. Flower, exclusive of ovary, 4 mm. long
=Coral Root, Corallorrhiza odontorhiza.=

8b. Flower about 10 mm. long. =Coral Root, Corallorrhiza striata.=

9a. Leaf 1 or