Aureolaria grandiflora

(Bentham) Pennell

Rhodora 20: 135. 1918.

Common names: Large-flower yellow false foxglove
Endemic
Basionym: Gerardia grandiflora Bentham Compan. Bot. Mag. 1: 206. 1836
Synonyms: Aureolaria grandiflora var. cinerea Pennell A. grandiflora var. pulchra Pennell A. grandiflora var. serrata (Bentham) Pennell G. grandiflora var. cinerea (Pennell) Cory G. grandiflora var. pulchra (Pennell) Fernald
Treatment appears in FNA Volume 17. Treatment on page 558. Mentioned on page 556.

Perennials. Stems simple or branched, 5–15 dm, white-puberulent. Leaves: petiole 8–18 mm; blade lanceolate, 50–105 x 30–40 mm, margins pinnatifid and serrate, rarely serrate and not pinnatifid, surfaces puberulent. Bracts leaflike, 15–22 x 3–7 mm, margins serrate to weakly pinnatifid at base. Pedicels 4–11 mm, puberulent. Flowers: calyx puberulent, tube campanulate, 6–10 mm, lobes linear to lanceolate, 3–12 x 1–4 mm, margins entire; corolla-tube 30–40 mm, glabrous, lobes 7–11 x 10–16 mm; filaments 13–27 mm, ciliate; style 29–35 mm. Capsules pyriform, 10–16 x 8–12 mm, glabrous.


Phenology: Flowering Jul–Oct.
Habitat: Maple, pine, and oak woodlands, roadsides.
Elevation: 0–400 m.

Distribution

Ont., Ark., Ill., Ind., Iowa, Kans., La., Mo., Okla., Tex., Wis.

Discussion

J. C. McFeeley and E. P. Roberts (1974) documented Aureolaria grandiflora, typically a parasite of oaks, parasitizing Juniperus virginiana in addition to oak species. F. W. Pennell (1935) recognized four infraspecific taxa within A. grandiflora, differentiated on subtle characteristics (for example, bract margins serrate versus more deeply cut, leaf blade margins more versus less pinnatifid). Additionally, he recognized these infraspecific taxa at both the varietal and subspecific ranks (at different times). No infraspecific taxa are recognized here.

There is a historic record of Aureolaria grandiflora from Houston County, Minnesota, collected in 1899.

Selected References

None.

Lower Taxa

None.

"dm" is not declared as a valid unit of measurement for this property.

... more about "Aureolaria grandiflora"
Jeffery J. Morawetz +
(Bentham) Pennell +
Gerardia grandiflora +
5 cm50 mm <br />0.05 m <br /> (10.5 cm105 mm <br />0.105 m <br />) +
lanceolate +
? (?) +  and ? (?) +
30mm;40mm +
1.5 cm15 mm <br />0.015 m <br /> (2.2 cm22 mm <br />0.022 m <br />) +
0.3 cm3 mm <br />0.003 m <br /> (0.7 cm7 mm <br />0.007 m <br />) +
turbinate +, campanulate +  and symmetric +
1 cm10 mm <br />0.01 m <br /> (1.6 cm16 mm <br />0.016 m <br />) +
0.8 cm8 mm <br />0.008 m <br /> (1.2 cm12 mm <br />0.012 m <br />) +
Large-flower yellow false foxglove +
3 cm30 mm <br />0.03 m <br /> (4 cm40 mm <br />0.04 m <br />) +
Ont. +, Ark. +, Ill. +, Ind. +, Iowa +, Kans. +, La. +, Mo. +, Okla. +, Tex. +  and Wis. +
0–400 m. +
ciliate +  and glabrous +
1.3 cm13 mm <br />0.013 m <br /> (2.7 cm27 mm <br />0.027 m <br />) +
2 +  and 1 +
indehiscent +, septicidal +, loculicidal +  and dehiscence +
Maple, pine, and oak woodlands, roadsides. +
axillary +  and terminal +
deciduous +
cauline +  and basal +
0.7 cm7 mm <br />0.007 m <br /> (1.1 cm11 mm <br />0.011 m <br />) +
linear +  and lanceolate +
10mm;16mm +
entire +  and serrate +
serrate +  and weakly pinnatifid +
tenuinucellate +  and unitegmic +
campylotropous-like +
0.4 cm4 mm <br />0.004 m <br /> (1.1 cm11 mm <br />0.011 m <br />) +
0.8 cm8 mm <br />0.008 m <br /> (1.8 cm18 mm <br />0.018 m <br />) +
Flowering Jul–Oct. +
300 +  and 500 +
ovoid +  and deltoid +
subequal +
branched +  and simple +
aerial +  and subterranean +
not fleshy +
2.9 cm29 mm <br />0.029 m <br /> (3.5 cm35 mm <br />0.035 m <br />) +
Aureolaria grandiflora var. cinerea +, A. grandiflora var. pulchra +, A. grandiflora var. serrata +, G. grandiflora var. cinerea +  and G. grandiflora var. pulchra +
Aureolaria grandiflora +
Aureolaria +
species +
campanulate +
0.6 cm6 mm <br />0.006 m <br /> (1 cm10 mm <br />0.01 m <br />) +
perennial +  and annual +