Antennaria virginica

Stebbins

Rhodora 37: 230, figs. 1, 2. 1935.

Common names: Shalebarren pussytoes
Endemic
Synonyms: Antennaria neglecta var. argillicola (Stebbins) Cronquist Antennaria neodioica var. argillicola (Stebbins) Fernald Antennaria virginica var. argillicola Stebbins
Treatment appears in FNA Volume 19. Treatment on page 403. Mentioned on page 390, 391, 396, 404, 405.

Dioecious. Plants 4–25 cm. Stolons 2–8 cm. Basal leaves 1-nerved, spatulate to cuneate-oblanceolate, 10–25 × 3–9 mm, tips mucronate, faces greenish gray, moderately pubescent. Cauline leaves linear, 4–20 mm, not flagged (apices acute). Heads 3–6 (–9) in corymbiform arrays. Involucres: staminate 3.8–6 mm; pistillate 5–7 mm. Phyllaries distally white or stramineous. Corollas: staminate 2.2–3.5 mm; pistillate 2.8–4.5 mm. Cypselae 0.8–1.3 mm, slightly papillate; pappi: staminate 2.8–4 (–5) mm; pistillate 3.5–5.2 mm. 2n = 28, 56.


Phenology: Flowering early–mid spring.
Habitat: Devonian shale barrens and argillaceous soils derived from them, open deciduous woods and fields
Elevation: 300–600 m

Distribution

V19-647-distribution-map.gif

Md., Ohio, Pa., Va., W.Va.

Discussion

G. L. Stebbins (1936) and R. J. Bayer and Stebbins (1982) maintained that Antennaria virginica is a distinct species. After previously recognizing the taxon as a variety of A. neglecta, A. Cronquist (1945; H. A. Gleason and Cronquist 1991) agreed. It is a sexual progenitor of the A. howellii complex and is most closely related to A. howellii subsp. neodioica (Bayer 1985). Antennaria virginica is dioecious and is characterized by its relatively small, spatulate, basal leaves and subulate-tipped cauline leaves, which separate it from A. neglecta and the gynoecious A. howellii complex (Stebbins 1935; Bayer and Stebbins).

Selected References

None.

Lower Taxa

None.
... more about "Antennaria virginica"
more or less tomentose +  and sericeous or glabrescent +
scarious +
mostly ovate +  and lanceovate or linear +
indeterminate +  and determinate +
Randall J. Bayer +
Stebbins +
1 cm10 mm <br />0.01 m <br /> (2.5 cm25 mm <br />0.025 m <br />) +
0.3 cm3 mm <br />0.003 m <br /> (0.9 cm9 mm <br />0.009 m <br />) +
decurrent +
compound +  and simple +
spatulate;oblanceolate;spatulate;oblanceolate;linear;lanceolate;elliptic;cuneate +
5-ribbed +, 3-ribbed +  and 2-ribbed +
muriculate +, papillate +  and smooth +
0.4 cm4 mm <br />0.004 m <br /> (2 cm20 mm <br />0.02 m <br />) +
Shalebarren pussytoes +
pistillate +  and staminate +
red +, yellow +  and white +
0.28 cm2.8 mm <br />0.0028 m <br /> (0.45 cm4.5 mm <br />0.0045 m <br />) +
papillate +
mostly ellipsoid +  and ovoid +
pistillate +  and staminate +
Md. +, Ohio +, Pa. +, Va. +  and W.Va. +
300–600 m +
greenish gray +
papillate +
pistillate +, staminate +  and neuter +
winged +  and beaked +
dispersed +
Devonian shale barrens and argillaceous soils derived from them, open deciduous woods and fields +
in corymbiform , paniculiform , racemiform or subcapitate , arrays +  and singly +
indeterminate +
homogamous +  and heterogamous +
each +  and sessile +
pistillate +  and staminate +
0.3 cm3 mm <br />0.003 m <br /> (0.7 cm7 mm <br />0.007 m <br />) +
campanulate;cylindric +
0.5 cm5 mm <br />0.005 m <br /> (0.7 cm7 mm <br />0.007 m <br />) +
sessile +  and petiolate +
cauline +  and basal +
rarely lanceovate +  and lanceolate +
2-carpellate +
pistillate +  and staminate +
0.4 cm4 mm <br />0.004 m <br /> (0.5 cm5 mm <br />0.005 m <br />) +
persistent +
0.35 cm3.5 mm <br />0.0035 m <br /> (0.52 cm5.2 mm <br />0.0052 m <br />) +
Flowering early–mid spring. +
bearing subulate enations +, hairy +  and bristly +
flat;convex or ovoid +
exalbuminous +
appendaged +  and truncate +
papillate +
Antennaria neglecta var. argillicola +, Antennaria neodioica var. argillicola +  and Antennaria virginica var. argillicola +
Antennaria virginica +
Antennaria +
species +
mucronate +
25 cm250 mm <br />0.25 m <br /> (70 cm700 mm <br />0.7 m <br />) +
4 cm40 mm <br />0.04 m <br /> (25 cm250 mm <br />0.25 m <br />) +