Agalinis filicaulis

(Bentham) Pennell

Bull. Torrey Bot. Club 40: 438. 1913.

Common names: Wire-stemmed false foxglove
IllustratedEndemic
Basionyms: Gerardia aphylla var. filicaulis Bentham Compan. Bot. Mag. 1: 174. 1836
Synonyms: G. filicaulis (Bentham) Chapman
Treatment appears in FNA Volume 17. Treatment on page 543. Mentioned on page 527, 537.

Stems simple or branched, 20–40 (–50) cm; branches widely and laxly spreading, nearly terete, papillate proximally to glabrate distally, sometimes glaucous. Leaves appressed to strongly ascending; blade subulate to narrowly triangular, 0.8–2.1 x 0.4–0.7 mm, margins entire, siliceous, abaxial midvein scabrous, adaxial surface glabrate; axillary fascicles absent. Inflorescences paniculate, flowers 1 per node; bracts shorter than pedicels. Pedicels ascending, 3–10 (–12) mm, glabrous. Flowers: calyx campanulate, tube 1.5–2.1 mm, glabrous, lobes triangular, siliceous at tips, 0.1–0.3 mm; corolla pink, without 2 yellow lines and red spots in abaxial throat, 8–11 mm, throat glabrous externally and glabrous within across bases and sinus of adaxial lobes, lobes: abaxial spreading, adaxial arching forward and overlapped resembling a keel, 1.6–4.2 mm, unequal, abaxial 2.5–4.2 mm, adaxial 1.6–2.5 mm, glabrous externally; proximal anthers parallel to filaments, distal perpendicular to filaments, pollen-sacs 0.9–1.6 mm; style exserted, 6.5–7.2 mm. Capsules globular, 3–4 mm. Seeds tan, 0.5–1 mm. 2n = 28.


Phenology: Flowering mid Sep–early Nov.
Habitat: Mesic to moist longleaf pine forests, moist prairies, shallow bogs, moist roadsides, remnant wiregrass communities, borrow pits.
Elevation: 0–20 m.

Distribution

Ala., Fla., Ga., La., Miss.

Discussion

Plants of Agalinis filicaulis are among the more diminutive in the genus. The corolla with short, arching adaxial lobes that appear keeled is unique in Agalinis. This along with the weak, glaucous stems and small, solitary flowers makes it immediately recognizable.

Selected References

None.

Lower Taxa

None.

... more about "Agalinis filicaulis"
0.25 cm2.5 mm <br />0.0025 m <br /> (0.42 cm4.2 mm <br />0.0042 m <br />) +
rounded +  and gibbous +
0.16 cm1.6 mm <br />0.0016 m <br /> (0.25 cm2.5 mm <br />0.0025 m <br />) +
Judith M. Canne-Hilliker† +  and John F. Hays +
(Bentham) Pennell +
Gerardia aphylla var. filicaulis +
0.08 cm0.8 mm <br />8.0e-4 m <br /> (0.21 cm2.1 mm <br />0.0021 m <br />) +
subulate;narrowly triangular +
fleshy +, rigid +  and not leathery +
0.4mm;0.7mm +
glaucous +  and glabrate +
papillate +
campanulate +
0.3 cm3 mm <br />0.003 m <br /> (0.4 cm4 mm <br />0.004 m <br />) +
Wire-stemmed false foxglove +
bilabiate +  and symmetric +
red spots +  and pink +
0.8 cm8 mm <br />0.008 m <br /> (1.1 cm11 mm <br />0.011 m <br />) +
Ala. +, Fla. +, Ga. +, La. +  and Miss. +
0–20 m. +
glabrate +  and lanate +
indehiscent +, septicidal +, loculicidal +  and dehiscence +
Mesic to moist longleaf pine forests, moist prairies, shallow bogs, moist roadsides, remnant wiregrass communities, borrow pits. +
axillary +  and terminal +
alternate +, subopposite +  and opposite +
deciduous +
yellow;yellow;yellow +
triangular +
2-pinnatifid +, pinnatifid +  and cleft +
tenuinucellate +  and unitegmic +
campylotropous-like +
spikelike +
1 cm10 mm <br />0.01 m <br /> (1.2 cm12 mm <br />0.012 m <br />) +
0.3 cm3 mm <br />0.003 m <br /> (1 cm10 mm <br />0.01 m <br />) +
Flowering mid Sep–early Nov. +
0.09 cm0.9 mm <br />9.0e-4 m <br /> (0.16 cm1.6 mm <br />0.0016 m <br />) +
Bull. Torrey Bot. Club +
spikelike +
60 +  and 600 +
Illustrated +  and Endemic +
subequal +
branched +  and simple +
aerial +  and subterranean +
leaning +  and erect +
papillate +  and scabridulous +
20 cm200 mm <br />0.2 m <br /> (40 cm400 mm <br />0.4 m <br />) +
0.65 cm6.5 mm <br />0.0065 m <br /> (0.72 cm7.2 mm <br />0.0072 m <br />) +
G. filicaulis +
Agalinis filicaulis +
Agalinis +
species +
campanulate +
0.15 cm1.5 mm <br />0.0015 m <br /> (0.21 cm2.1 mm <br />0.0021 m <br />) +
perennial +  and annual +