Pseudognaphalium pringlei

(A. Gray) Anderberg

Opera Bot. 104: 147. 1991.

Common names: Pringle’s rabbit-tobacco
Basionym: Gnaphalium pringlei A. Gray Proc. Amer. Acad. Arts 21: 387. 1886
Treatment appears in FNA Volume 19. Treatment on page 422. Mentioned on page 416.

Annuals or perennials, 30–80 cm; taprooted. Stems lightly white-tomentose and/or glabrescent and green, minutely stipitate or sessile-glandular beneath other induments. Leaf-blades (not crowded, internodes mostly 5+ mm) oblanceolate-spatulate to obovate or petiolate-spatulate, 5–10 cm × 10–20 mm (distal oblong to lanceolate or oblanceolate, 2–8 cm, slightly smaller), bases not clasping and decurrent 3–20 mm or clasping and decurrent 1–3 mm or not decurrent at all, margins flat to slightly revolute, faces bicolor, abaxial thinly white-tomentose, adaxial minutely stipitate or sessile-glandular, otherwise glabrous or glabrate (bases of hairs persistent, enlarged). Heads in loose, corymbiform arrays. Involucres campanulate to turbinate, 3.5–4 mm. Phyllaries in 2–3 series, silvery white to tawny, oblong to oblong-ovate, (hyaline, shiny), glabrous. Pistillate florets 15–40 (–64). Bisexual florets (1–) 2–6. Cypselae ridged, papillate-roughened.


Phenology: Flowering (Aug–)Sep–Nov.
Habitat: Rock outcrops and slopes, crevices and thin soil on cliffs, oak or oak-pine woodlands
Elevation: 1500–2300 m

Distribution

V19-691-distribution-map.gif

Ariz., N.Mex., Tex., Mexico (Chihuahua), Mexico (Durango), Mexico (Sonora)

Discussion

Selected References

None.

Lower Taxa

None.
... more about "Pseudognaphalium pringlei"
white +  and gray +
white-tomentose +
grayish;greenish +
glabrate +  and glabrous +
scarious +
mostly ovate +  and lanceovate or linear +
indeterminate +  and determinate +
Guy L. Nesom +
(A. Gray) Anderberg +
clasping +  and not clasping +
not decurrent +  and decurrent +
0.1 cm1 mm <br />0.001 m <br /> (0.3 cm3 mm <br />0.003 m <br />) +
Gnaphalium pringlei +
compound +  and simple +
mostly narrowly lanceolate;oblanceolate +
5-ribbed +, 3-ribbed +  and 2-ribbed +
muriculate +, papillate +  and smooth +
Pringle’s rabbit-tobacco +
actinomorphic +
papillate-roughened +
Ariz. +, N.Mex. +, Tex. +, Mexico (Chihuahua) +, Mexico (Durango) +  and Mexico (Sonora) +
1500–2300 m +
papillate-roughened +
winged +  and beaked +
dispersed +
Rock outcrops and slopes, crevices and thin soil on cliffs, oak or oak-pine woodlands +
singly +  and aggregated +
indeterminate +
homogamous +  and heterogamous +
each +  and sessile +
0.3 cm3 mm <br />0.003 m <br /> (0.4 cm4 mm <br />0.004 m <br />) +
campanulate;turbinate +
0.35 cm3.5 mm <br />0.0035 m <br /> (0.4 cm4 mm <br />0.004 m <br />) +
5 cm50 mm <br />0.05 m <br /> (10 cm100 mm <br />0.1 m <br />) +
1 cm10 mm <br />0.01 m <br /> (2 cm20 mm <br />0.02 m <br />) +
cauline +  and basal +
rarely lanceovate +  and lanceolate +
flat +  and slightly revolute +
2-carpellate +
persistent +
Flowering (Aug–)Sep–Nov. +
bearing subulate enations +, hairy +  and bristly +
conic;more or less columnar +
4 +  and 6 +
exalbuminous +
sessile-glandular +  and stipitate +
decumbent +  and procumbent +
appendaged +  and truncate +
papillate +
Compositae +
Pseudognaphalium pringlei +
Pseudognaphalium +
species +
150 cm1,500 mm <br />1.5 m <br /> (200 cm2,000 mm <br />2 m <br />) +
perennial +  and annual +
30 cm300 mm <br />0.3 m <br /> (80 cm800 mm <br />0.8 m <br />) +
shrub +  and subshrub +