of the base of the oblique internal ring of hairs and often with a small saccate 

 gibbosity; anthers explanate. Incl. var. pilosa (Nutt.) Fern, and var. nipigonensis 

 Jennings. 



In water of ditches, wet meadows, swampy open ground along streams and 

 sloughs, and on edge of lakes and ponds, in Okla. {Waterfall), N. M. (Rio 

 Arriba and Taos cos.) and Ariz. (Apache, Coconino and Greenlee cos.), July- 

 Oct.; Que. to Alas., s. to N.E., N.Y., O., Mich., 111., la.. Mo., Okla., N.M. and 

 Ariz. 



2. Stachys Nuttallii Shuttlew. 



Plant coarse, with long rhizomes; stems erect, simple, 7-12 dm. tall, the angles 

 hispid, the sides glandular-puberulent; leaves sessile to subsessile, narrowly ovate 

 to oblong-elliptic or elliptic-lanceolate, 8-13 cm. long, 2-4.5 cm. wide, cordate 

 at base, acuminate at apex, nearly or quite glabrous on lower surface except for 

 hispid nerves, crenate to crenate-serrate; verticils usually many-flowered; calyx 

 glandular and short-pilose, with tube 3.5-5.5 mm. long and deltoid acuminate 

 teeth about half as long as the tube; mericarps 1.9-2 mm. long. 



In meadows and bogs, in Okla. (Gleason, Waterfall), June-July; w. Va. and 

 N. C. to Ark. and Okla. 



This plant is closely allied to S. palustris, to which it may eventually be 

 referred. 



3. Stachys crenata Raf. Shade betony. 



Annual or biennial, hirsute; stems usually branched at the base, the branches 

 erect or decumbent, to 3 dm. long; leaves ovate to oblong, to 4 cm. long, obtuse 

 at apex, crenate, truncate to cordate at base, the lower ones with petioles as 

 long as or longer than blade, the uppermost sessile; clusters few-flowered; pedicels 

 1-2 mm. long; bracts oval to suborbicular, subulate-tipped;, calyx 3-5 mm. long; 

 calyx lobes ovate-lanceolate to lanceolate, with subulate tips, mostly shorter than 

 the tube, glabrous beyond the middle; corolla 5-6 mm. long, pink-lavender, pink 

 to blue or rarely white, glabrous except the bearded upper lip, the lobes of the 

 lower lip rounded or the middle one barely emarginate; cocci about 1 mm. long, 

 granular. S. agraria Cham. & Schlecht. 



In shaded rocky or gravelly soils in woods, ravines in prairies, in mud on edge 

 of ponds and lakes and along streams, on banks and in open grounds in e., cen. 

 and s. Tex., Feb.-May; also n.e. Mex. 



The plant with white corolla and green calyx teeth is segregated as f. albiffora 

 Benke. 



4. Stachys tenuifolia Willd. Fig. 669. 



Perennial, extensively creeping, glabrous or nearly so; the erect simple or 

 branching stems glabrous or at most sparsely hirtellous on the sides, smooth to 

 roughened or hirsute on the angles, to 13 dm. high; leaves with petiole 1-2 cm. 

 long, linear or linear-lanceolate to narrowly ovate, the principal ones 6 cm. broad, 

 glabrous or hirsute on one or both faces, with rounded to subtruncate or tapering 

 base, taper-pointed, sharply dentate to serrate, the middle and lower blades 4 to 

 1 1 times as long as their petioles; spike few-flowered, interrupted; calyx 5-6 mm. 

 long, glabrous or bristly along the angles, the lance-attenuate teeth soon out- 

 wardly curving; corolla about 1 cm. long, the tube surpassing the calyx, the lower 

 lip drooping and slightly shorter than the tube, the upper lip concave and glan- 

 dular-pubescent on the back; filaments villous at the base; cocci 2 mm. long, 

 somewhat lustrous. 



Rich bottomlands, lake shores, muddy bayous, swamps, marshes, low woods and 

 wet meadows in e. fourth of Tex. and Okla. (Cherokee Co.), Aug.-Nov.; from 

 N. Y. to Minn., s. to S. C, Tenn., La., Okla. and Tex. 



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