Verbena bipinnatifida Nutt.

• Authority

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

• Family

  Verbenaceae

• Scientific Name

  Verbena bipinnatifida Nutt.

• Description

  Species Description - Diffusely branched perennial 1–4 dm, the stems hispid- hirsute, the lvs appressed-hirsute, the cal hispid-hirsute along the nerves; lvs petiolate, 2–6 cm, pinnatifid, or ternate with ± bipinnatifid segments; spikes pedunculate, short at anthesis, later elongating; bracts linear- subulate, mostly longer than the cal; cal 8.5–10 mm, the slender lobes unequal; cor pink to purple, the tube half again as long as the cal, the limb 7–10 mm wide, the lobes emarginate; nutlets 3 mm; 2n=30. Dry plains and other open places; S.D. to Ariz. and La., barely entering our range in nw. Mo. Feb.–Dec.

• Common Names

  Dakota vervain