Agalinis plukenetii

(Elliott) Rafinesque

New Fl. 2: 63. 1837.

Common names: Plukenet’s false foxglove
Endemic
Basionyms: Gerardia plukenetii Elliott Sketch Bot. S. Carolina 2: 114. 1822
Treatment appears in FNA Volume 17. Treatment on page 550. Mentioned on page 536, 551, 553.

Stems often leaning, simple or branched, 30–100 cm, bushy; branches spreading-ascending, subterete proximally to quadrangular-ridged distally, glabrous or sparsely scabridulous distally. Leaves widely spreading to slightly ascending; blade filiform, 18–45 x 0.2–0.8 mm, not fleshy, margins entire, adaxial surface scabridulous; axillary fascicles absent. Inflorescences racemiform, flowers 1 per node, some flowers pseudoterminal; bracts longer than pedicels. Pedicels spreading-ascending, 3–8 mm, glabrous. Flowers: calyx hemispheric, tube 3–5 mm, glabrous, lobes deltate-subulate, 0.2–1 mm; corolla dark-pink to rose-pink, with 2 yellow lines and dark-pink spots in abaxial throat, 18–30 mm, throat pilose externally and villous within across bases and sinus of adaxial lobes, lobes: abaxial spreading, adaxial reflexed-spreading, 6–10 mm, abaxial pilose externally, adaxial glabrous externally; proximal anthers parallel to filaments, distal perpendicular to filaments, pollen-sacs 2.2–4 mm; style exserted, 11–17 mm. Capsules globular, 4–5 mm. Seeds dark-brown to black, 0.5–0.8 mm. 2n = 28.


Phenology: Flowering late Sep–early Nov.
Habitat: Dry to xeric, sandy, gravelly or clay roadsides, pine-oak forests, margins of savannas, disturbed ground.
Elevation: 0–300 m.

Distribution

Ala., Fla., Ga., La., Miss., S.C., Tenn.

Discussion

Agalinis plukenetii can be bushy, relatively large, and showy. Agalinis plukenetii is a common component of dry to xeric roadsides in the southern portions of its range. It readily colonizes open, dry ground with very little vegetation. It was reported in South Carolina (F. W. Pennell 1935) based on a specimen that has little label data; its occurrence there is doubtful.

Selected References

None.

Lower Taxa

None.

... more about "Agalinis plukenetii"
rounded +  and gibbous +
reflexed-spreading +
0.6 cm6 mm <br />0.006 m <br /> (1 cm10 mm <br />0.01 m <br />) +
Judith M. Canne-Hilliker† +  and John F. Hays +
(Elliott) Rafinesque +
Gerardia plukenetii +
1.8 cm18 mm <br />0.018 m <br /> (4.5 cm45 mm <br />0.045 m <br />) +
filiform +
not fleshy +
0.2mm;0.8mm +
spreading-ascending +
scabridulous +
quadrangular-ridged +  and subterete +
hemispheric +
0.4 cm4 mm <br />0.004 m <br /> (0.5 cm5 mm <br />0.005 m <br />) +
Plukenet’s false foxglove +
bilabiate +  and symmetric +
dark-pink spots +, dark-pink +  and rose-pink +
1.8 cm18 mm <br />0.018 m <br /> (3 cm30 mm <br />0.03 m <br />) +
Ala. +, Fla. +, Ga. +, La. +, Miss. +, S.C. +  and Tenn. +
0–300 m. +
glabrate +  and lanate +
pseudoterminal +
indehiscent +, septicidal +, loculicidal +  and dehiscence +
Dry to xeric, sandy, gravelly or clay roadsides, pine-oak forests, margins of savannas, disturbed ground. +
axillary +  and terminal +
alternate +, subopposite +  and opposite +
deciduous +
yellow;yellow;yellow +
deltate-subulate +
2-pinnatifid +, pinnatifid +  and cleft +
tenuinucellate +  and unitegmic +
campylotropous-like +
spikelike +
spreading-ascending +
0.3 cm3 mm <br />0.003 m <br /> (0.8 cm8 mm <br />0.008 m <br />) +
Flowering late Sep–early Nov. +
0.22 cm2.2 mm <br />0.0022 m <br /> (0.4 cm4 mm <br />0.004 m <br />) +
spikelike +
60 +  and 600 +
subequal +
branched +  and simple +
aerial +  and subterranean +
papillate +  and scabridulous +
30 cm300 mm <br />0.3 m <br /> (100 cm1,000 mm <br />1 m <br />) +
1.1 cm11 mm <br />0.011 m <br /> (1.7 cm17 mm <br />0.017 m <br />) +
Tomanthera +
Agalinis plukenetii +
Agalinis +
species +
villous +  and pilose +
campanulate +
0.3 cm3 mm <br />0.003 m <br /> (0.5 cm5 mm <br />0.005 m <br />) +
perennial +  and annual +