Stachys palustris L.
Family: Lamiaceae
Stachys palustris image
Michsrl Becker  
Plant: perennial herb; rhizomatous; hairs sparse, spreading or appressed; stems 10-100 cm tall Leaves: 4-7 cm long, 1-2.5 cm wide; petioles mostly winged, absent to 7 mm long; blades broadly triangular-ovate to oblong; margins evenly serrate; bases cordate to truncate INFLORESCENCE: with petiolate bracts, the lower leafy, the others reduced, usually longer than sepals Flowers: calyx nearly actinomorphic, 5-10 mm long; corolla pink-purple to red-purple, 1-1.8 cm long, the tube slightly exserted Fruit: NUTLETS ca. 2 mm long and wide, broadly oblong, smooth REFERENCES: Christy, Charlotte M. 2003. Lamiaceae. J. Ariz. - Nev. Acad. Sci. Volume 35(2).
Rhizomatous perennial 3-10 dm, hairy throughout and often glandular; lvs sessile or some short-petioled, the main ones lance-triangular to lance-ovate or elliptic, broadly rounded to truncate-subcordate at base, 3.5-9 נ1-4 cm, crenate; infl a series of usually 6-fld verticils, the lower often subtended by foliage lvs, the upper by progressively reduced bracts; cal 6-9 mm, the narrow lobes nearly as long as the tube; cor purplish, white-maculate, 11-16 mm, the tube abruptly expanded on the lower side at the base of the oblique internal hairy ring, and often with a small, saccate gibbosity. Moist or wet places; circumboreal, in Amer. from Que. to Alas., s. to N.Y., Ill., Mo., and Ariz. June-Aug. (S. ampla; S. arenicola; S. arguta; S. borealis; S. brevidens; S. homotricha; S. pustulosa; S. schweinitzii) Three vars. in our range:

Gleason, Henry A. & Cronquist, Arthur J. 1991. Manual of vascular plants of northeastern United States and adjacent Canada. lxxv + 910 pp.

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