Pseudognaphalium helleri

(Britton) Anderberg

Opera Bot. 104: 147. 1991.

Common names: Heller’s rabbit-tobacco
Endemic
Basionym: Gnaphalium helleri Britton Bull. Torrey Bot. Club 20: 280. 1893
Synonyms: Gnaphalium obtusifolium var. helleri (Britton) S. F. Blake
Treatment appears in FNA Volume 19. Treatment on page 421. Mentioned on page 415, 416.

Annuals (fragrant), 30–100 cm; fibrous-rooted (roots relatively thick and lignescent). Stems greenish, glandular-villous (without persistent tomentum, stipitate-glands mostly 0.3–1 mm, often variable, stalks broadened toward bases, about equaling gland widths). Leaf-blades mostly oblong-lanceolate, 2.5–7 cm × 4–20 mm, bases not clasping, not decurrent, margins flat, faces bicolor, abaxial white to gray with lightly persistent tomentum, adaxial green, both minutely stipitate-glandular. Heads in corymbiform arrays. Involucres campanulate, 6–7 mm. Phyllaries in 4–6 series, white (opaque, shiny), ovate to ovate-oblong or oblong, ± tomentose. Pistillate florets 83–107. Bisexual florets 9–15. Cypselae ridged, smooth.


Phenology: Flowering Sep–Oct(–Nov).
Habitat: Dry woods and openings, clay and sandy clay, sand hills
Elevation: 10–300 m

Distribution

V19-688-distribution-map.gif

Ala., Ark., Fla., Ga., La., Miss., N.C., Okla., S.C., Tenn., Tex., Va.

Discussion

Pseudognaphalium helleri and P. micradenium are similar to P. obtusifolium in most features; both differ in their glandular stems without the persistent whitish tomentum of P. obtusifolium.

Selected References

None.

Lower Taxa

None.
... more about "Pseudognaphalium helleri"
white +  and gray +
tomentose +  and velutinous +
stipitate-glandular +
scarious +
mostly ovate +  and lanceovate or linear +
indeterminate +  and determinate +
Guy L. Nesom +
(Britton) Anderberg +
not decurrent +
Gnaphalium helleri +
compound +  and simple +
mostly narrowly lanceolate;oblanceolate +
5-ribbed +, 3-ribbed +  and 2-ribbed +
muriculate +, papillate +  and smooth +
Heller’s rabbit-tobacco +
actinomorphic +
Ala. +, Ark. +, Fla. +, Ga. +, La. +, Miss. +, N.C. +, Okla. +, S.C. +, Tenn. +, Tex. +  and Va. +
10–300 m +
papillate-roughened +
winged +  and beaked +
dispersed +
Dry woods and openings, clay and sandy clay, sand hills +
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 +
0.6 cm6 mm <br />0.006 m <br /> (0.7 cm7 mm <br />0.007 m <br />) +
2.5 cm25 mm <br />0.025 m <br /> (7 cm70 mm <br />0.07 m <br />) +
0.4 cm4 mm <br />0.004 m <br /> (2 cm20 mm <br />0.02 m <br />) +
cauline +  and basal +
rarely lanceovate +  and lanceolate +
2-carpellate +
persistent +
Flowering Sep–Oct(–Nov). +
bearing subulate enations +, hairy +  and bristly +
conic;more or less columnar +
4 +  and 6 +
exalbuminous +
decumbent +  and procumbent +
appendaged +  and truncate +
papillate +
Gnaphalium obtusifolium var. helleri +
Pseudognaphalium helleri +
Pseudognaphalium +
species +
150 cm1,500 mm <br />1.5 m <br /> (200 cm2,000 mm <br />2 m <br />) +
30 cm300 mm <br />0.3 m <br /> (100 cm1,000 mm <br />1 m <br />) +
shrub +  and subshrub +