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Key to Glandularia

Verbenaceae

Glandularia

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1 Nutlets ca. 4 mm long, with or without a conspicuous ovate appendage at the apex; [e. and s. TX westward and southward]
1 Nutlets 2.5-3.5 mm long, lacking an apical appendage; [collectively widespread in our region].
  2 Leaves finely dissected, the divisions 1 mm or less wide, the margins strongly revolute.
    3 Bracts as long as or longer than the calyx; leaf segments 1-4 mm wide
    3 Bracts much shorter than the calyx; leaf segments 0.5-1.5 mm wide
  2 Leaves coarsely dissected or lobed, the divisions > 1 mm wide, the margins slightly or not at all revolute.
        5 Leaves somewhat succulent, glabrous or with a few hairs; [n. FL southwards]
        5 Leaves not succulent, hirsute to strigose; [collectively widespread in our area].
          6 Corolla limbs 2-5 mm wide; corolla tubes extending only slightly beyond the calyx; plants mostly procumbent to prostrate or ascending; [w. of Mississippi River]
             7 Stem pubescence composed primarily of eglandular hairs; corollas deep lavender to purple; [s. TX to s. MX]
             7 Stem pubescence composed primarily of glandular hairs; corollas light pink-lavender to rarely deep lavender; [sw. AR and OK to n. MX]
          6 Corolla limbs 9-15 mm wide; corolla tubes extending well beyond the calyx; plants decumbent to ascending; [collectively widespread]
               8 Leaves < 1.5x as long as wide, the bases attenuate; [s. TX to n. MX]
               8 Leaves > 1.5× as long as wide, the bases truncate to cuneate; [widespread, westward to e. and nc. TX]