Agalinis viridis
Agalinis gattingeri
green false foxglove
Midwest false foxglove, roundstem false foxglove
branched, 15–70 cm;
branches laxly and widely spreading, proximal arching upward, subterete proximally, quadrangular, with siliceous ridges and wings on angles distally, glabrous, sometimes scabridulous.
simple or branched, 10–60 cm;
branches spreading-ascending, quadrangular-ridged, glabrate, scabridulous, or scabrous.
spreading to spreading-ascending;
blade linear, 8–30 x 0.5–2.3(–3) mm, not fleshy, margins entire, siliceous, adaxial surface finely scabrous;
axillary fascicles absent.
spreading or arching;
blade narrowly linear to filiform, 13–30(–40) x 0.4–1.4 mm, not fleshy, margins entire, adaxial surface finely scabrous;
axillary fascicles absent.
racemiform, with lateral branches bearing solitary flowers, flowers 1 per node;
bracts both shorter and longer than, or shorter than, pedicels.
racemiform, flowers 1 per node, sometimes with pseudoterminal flowers on lateral branches;
bracts shorter than pedicels.
spreading to spreading-ascending or arching, 3–14 mm, glabrous.
spreading-ascending, (4–)8–35 mm, glabrous.
calyx campanulate, tube 3–5.5 mm, glabrous, lobes lanceolate, 1.3–2.5 mm;
corolla pale pink (sometimes nearly translucent), with 2 yellow or pale lines and pale purple spots in abaxial throat, 8–12 mm, throat pilose externally and villous within across bases and sinus of adaxial lobes, lobes: abaxial spreading, adaxial reflexed-spreading, 3–5 mm, glabrous externally;
proximal anthers parallel to filaments, distal perpendicular or oblique to filaments, pollen sacs 0.8–1.5 mm;
style exserted, 3–5 mm.
calyx turbinate to hemispheric, tube 2–4 mm, glabrous, sometimes hairy, lobes triangular-lanceolate, 0.5–1.4(–2.6) mm;
corolla pink to pale purple, with 2 yellow lines and dark pink spots in abaxial throat, 7–17 mm, throat pilose externally and villous within across bases and sinus of adaxial lobes, lobes: abaxial spreading, adaxial recurved, 3–5 mm, abaxial pilose externally, adaxial sparsely pilose or glabrous externally;
proximal anthers parallel to filaments, distal perpendicular to filaments, pollen sacs 1.3–2.5 mm;
style exserted, 7–13 mm.
obovoid, 4–6(–7) mm.
globular-ovoid, 3.5–5 mm.
tan to pale brown, 0.8–1 mm.
yellowish tan, 0.7–1.2 mm.
= 26.
Agalinis viridis
Agalinis gattingeri
Agalinis viridis is tolerant of mowing and grazing; plants severed at mid stem will flower vigorously from the proximal nodes
(Discussion copyrighted by Flora of North America; reprinted with permission.)
Plants of Agalinis gattingeri are most often confused with those of A. skinneriana and A. tenuifolia. They can be distinguished by features discussed under 33. A. tenuifolia. Agalinis gattingeri is also confused with A. skinneriana from which it can be separated by the mostly solitary flowers on lateral branches of A. gattingeri versus the well-formed central raceme of A. skinneriana; pink-purple corollas of A. gattingeri versus the pale pink to nearly white corollas of A. skinneriana; the flexible, well-branched stems of A. gattingeri versus the strict, brittle, mostly simple to few-branched stems of A. skinneriana; and the pilose abaxial corolla lobes in A. gattingeri versus the glabrous external corolla lobes of A. skinneriana. Isolated populations of A. gattingeri on the islands of Georgian Bay, Ontario, have calyx lobes to 2.6 mm and hairs on the calyx tube, characteristics not seen elsewhere in the species.
(Discussion copyrighted by Flora of North America; reprinted with permission.)
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