Agalinis pulchella
Agalinis obtusifolia
beautiful false foxglove, purple gerardia, St. Mark's false foxglove
savanna false foxglove, tenlobe false foxglove
branched, 50–120 cm;
branches spreading-ascending, quadrangular-ridged, scabrous.
simple or branched, 30–80(–100) cm;
branches erect-ascending to arching-ascending, quadrangular, with siliceous ridges on angles and, often, faces proximal to leaves, glabrous, sometimes scabridulous on ridges and at nodes.
spreading-ascending;
blade filiform, 16–40 x 0.4–1 mm, margins entire, midvein harshly scabrous, adaxial surface scabrous;
axillary fascicles: length 1/2–1 times subtending leaves.
erect to erect-ascending;
blade linear-elliptic to narrowly spatulate, most widened distally, 10–20 x 0.4–1.5 mm, margins entire, adaxial surface scabrous;
axillary fascicles absent.
racemiform-paniculiform, flowers 1 per node, some flowers pseudoterminal;
bracts shorter than pedicels.
racemiform-paniculate, flowers 1 or 2 per node, interrupted by short multinoded branches bearing pseudoterminal flowers subtended by tiny bractlets;
bracts shorter than pedicels.
spreading-ascending, 12–50 mm, scabrous.
spreading-ascending, 4–25 mm, glabrous, rarely scabridulous.
calyx hemispheric, tube 3–4(–5) mm, glaucous, lobes erect, subulate, 0.1–0.6 mm;
corolla dark pink to rose, with 2 yellow lines and purple spots in abaxial throat, 22–33 mm, throat sparsely pilose externally and glabrous within across bases of adaxial lobes, sparsely villous at sinus, lobes: abaxial reflexed-spreading, adaxial spreading, 6–12 mm, equal, glabrous externally;
proximal anthers parallel to filaments, distal perpendicular to filaments, pollen sacs 2.5–3.8 mm;
style strongly exserted, 9–18 mm.
calyx hemispheric, tube 2–3 mm, glabrous, lobes deltate, 0.2–0.5 mm;
corolla pink, with 2 yellow lines and pink spots pale or absent in abaxial throat, 12–15(–17) mm, throat pilose externally and villous within across bases and sinus of adaxial lobes, lobes: abaxial spreading, adaxial reflexed-spreading, 3–5 mm, glabrous;
proximal anthers parallel to filaments, distal perpendicular to filaments, pollen sacs 1.5–2.1 mm;
style exserted, 5–7 mm.
globular, 4–6 mm.
globular to oblong, 4–5 mm.
black, 0.5–0.8 mm.
pale yellowish brown, 0.6–0.8(–1) mm.
= 26.
= 26.
Agalinis pulchella
Agalinis obtusifolia
Agalinis pulchella is an uncommon species in the easternmost area of its range and is common only westward in southeastern Texas.
(Discussion copyrighted by Flora of North America; reprinted with permission.)
Agalinis obtusifolia is usually found in dry habitats and less frequently in more hydric conditions. The following suite of characters is useful for differentiating A. obtusifolia from A. decemloba, A. flexicaulis, and A. skinneriana: stems and branches stiffly erect, brittle, prominently siliceous-ridged, stramineous when dried; leaves obtusely and narrowly elliptic-spatulate, margins scabrous and revolute, stramineous when dried; calyx lobes minute and deltoid; corolla lacking internal markings or markings faint; and inflorescences of interrupted racemes with secondary and tertiary branches bearing pseudoterminal flowers. Characters useful for differentiating A. obtusifolia and A. tenella are discussed under 32. A. tenella.
F. W. Pennell (1929) used the name Agalinis erecta (J. F. Gmelin) Pennell for A. obtusifolia. Pennell based his combination on Anonymos erecta Walter, an invalid name.
(Discussion copyrighted by Flora of North America; reprinted with permission.)
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