Agalinis aspera
Agalinis homalantha
rough false foxglove, rough foxglove, tall false foxglove
San Antonio false foxglove
simple or branched, 7–100 cm;
branches ascending, terete, ridged, scabridulous proximally, angular, ridged, scabrous distally, sometimes sparingly.
simple or branched, 30–100 cm;
branches ascending, obtusely quadrangular proximally, quadrangular-ridged distally, scabrous.
ascending;
blade linear to filiform, 15–50(–60) x 0.4–1.5(–2) mm, margins entire, siliceous, adaxial surface scabrous;
axillary fascicles well developed, shorter to longer than subtending leaves.
spreading-ascending;
blade narrowly linear to linear, 14–35(–40) x 0.6–1.5 mm, not fleshy, margins entire, abaxial midvein scabrous, adaxial surface scabrous;
axillary fascicles usually to 1/2+ as long as subtending leaves, sometimes absent.
racemes, flowers 1 or 2 per node;
bracts longer than pedicels.
racemes, flowers 1 or 2 per node;
bracts shorter than or both shorter and longer than pedicels.
ascending-spreading, 4–20 mm, glabrous or proximally scabridulous.
ascending, often arching upwards distally, 6–30 mm, scabrous, sometimes only proximally.
calyx campanulate, tube (3–)3.5–5 mm, glabrous, lobes triangular-lanceolate, (1.5–)2–4 mm;
corolla pink, with 2 yellow lines and dark red spots in abaxial throat, 15–28 mm, throat pilose externally and glabrous within across bases and sinus of adaxial lobes, lobes: abaxial projecting to spreading, adaxial spreading to erect, 3–7 mm, glabrous externally;
proximal anthers parallel to filaments, distal perpendicular to filaments, pollen sacs 1.8–3 mm;
style included or exserted, 8–15 mm.
calyx funnelform to obconic, tube 3–5 mm, glabrous, lobes recurved, triangular-subulate, 0.6–1.5 mm;
corolla dark pink, with 2 yellow lines and dark purple spots in abaxial throat, 15–26 mm, throat pilose externally and glabrous within across bases of adaxial lobes, sparsely villous at sinus, lobes: abaxial projecting-spreading, adaxial arched over anthers, 2–6 mm, unequal, abaxial 4–6 mm, adaxial 2–4 mm, glabrous externally;
proximal anthers perpendicular to filaments, distal oblique or perpendicular to filaments, pollen sacs 3–4 mm;
style exserted, 12–18(–20) mm.
ovoid-oblong, 6.5–11 mm.
globular, 5–7 mm.
dark brown, 0.9–2 mm.
dark brown to nearly black, 0.8–1.6 mm.
= 26.
= 26.
Agalinis aspera
Agalinis homalantha
Plants of Agalinis aspera have strongly siliceous hairs that are rough to the touch and appear marbled. The style is usually pilose.
(Discussion copyrighted by Flora of North America; reprinted with permission.)
Agalinis homalantha is a common component of dry to xeric, open communities in Oklahoma and Texas and to a lesser extent in Louisiana. In Arkansas, populations are found from Fort Smith along the Arkansas River to the Mississippi River and southward to Bolivar County, Mississippi, where they are often associated with sandy terraces just downstream from dams and levees. Flooding of the sandbanks often carries seeds of A. homalantha well away from the streams, where it thrives in recently disturbed, weedy, sandy areas (J. F. Hays 1998).
Agalinis homalantha is distinguished from A. tenuifolia by its scabrous branches and pedicels; short, arched adaxial corolla lobes; prominent, wider yellow lines in the corolla; larger anthers with longer awns; and larger seeds.
(Discussion copyrighted by Flora of North America; reprinted with permission.)
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