Stachys crenata Raf.
Family: Lamiaceae
Mouse's-Ear,  more...
[Stachys agraria auct. non Cham. & Schlecht.]
Stachys crenata image
Robert Harms  

PLANT: Annual herbs, fibrous rooted, green; hairs sparse, spreading; stems 10 45 cm long.

LEAVES: 5 15 mm long, 2 5 mm wide; petioles winged, absent to 3 mm long; blade ovate to elliptic; margin evenly serrate; base short attenuate.

INFLORESCENCE: with petiolate to subsessile bracts, the lowest leafy, the others reduced, usually equaling or longer than sepals.

FLOWERS: calyx nearly actinomorphic, 4 5 mm long; corolla medium red purple, 5 6 mm long, the tube not exserted from calyx.

NUTLETS: ca. 1-1.5 mm long and wide, broadly obovate, smooth. 2n = 32.

NOTES: Disturbed habitats: Apache, Navajo cos.; 2150 2300 m (7000 7500 ft); Jul Sep; e TX to FL, KY; Mex. This species apparently is documented in AZ by only three collections (ASU, ASC) made by V. D. Rhoton during Jul 1961 and Sep 1962. These specimens appear quite depauperate, none exceeding 20 cm tall. These facts, and the disjunction from its native range, strongly suggest that this species was a localized and nonpersistent introduction, not truly a part of the AZ flora.

REFERENCES: Christy, Charlotte M., et. al. 2003. Lamiaceae. J. Ariz. - Nev. Acad. Sci. Volume 35(2).

Stachys crenata image
Robert Harms  
Stachys crenata image
Jeff McMillian  
Stachys crenata image
Robert Harms  
Stachys crenata image
Robert Harms  
Stachys crenata image
Robert Harms  
Stachys crenata image
Robert Harms