Antennaria howellii subsp. canadensis

(Greene) R. J. Bayer

Brittonia 41: 397. 1989.

Common names: Canadian pussytoes antennaire du Canada
Endemic
Basionym: Antennaria canadensis Greene Pittonia 3: 275. 1898
Synonyms: Antennaria canadensis var. randii Fernald Antennaria canadensis var. spathulata Fernald Antennaria neglecta var. randii (Fernald) Cronquist Antennaria neodioica subsp. canadensis (Greene) R. J. Bayer & Stebbins Antennaria neodioica var. randii (Fernald) B. Boivin Antennaria spathulata
Treatment appears in FNA Volume 19. Treatment on page 404.

Plants 15–35 cm (stems stipitate-glandular). Stolons 3–8 cm. Basal leaves 1-nerved, spatulate to oblanceolate, 20–40 × 6–9 mm, tips mucronate, faces abaxially tomentose, adaxially green-glabrous. Cauline leaves linear, 12–30 mm, distal flagged. Heads 3–7 in corymbiform arrays. Involucres: staminate unknown; pistillate 7–10 mm. Phyllaries (sometimes rose at bases) distally white or cream. Corollas: pistillate 4–6.5 mm. Cypselae 1–1.5 mm, papillate; pappi: pistillate 7–9 mm. 2n = 56, 84 (under A. neodioica).


Phenology: Flowering mid spring–early summer.
Habitat: Pastures, dry fields, openings in woodlands and forests, and rock barrens
Elevation: 0–1500 m

Distribution

V19-649-distribution-map.gif

Man., N.B., Nfld. and Labr. (Nfld.), N.S., Ont., P.E.I., Que., Sask., Yukon, Conn., Del., Ind., Maine, Md., Mass., Mich., Minn., N.H., N.J., N.Y., Ohio, Pa., R.I., Vt., Va., W.Va., Wis.

Discussion

Subspecies canadensis is almost restricted to the eastern half of North America. It is probably most closely related to Antennaria racemosa of the northern Rockies and A. neglecta of the Great Plains; see R. J. Bayer 1985).

Selected References

None.

Lower Taxa

None.
more or less tomentose +  and sericeous or glabrescent +
scarious +
mostly ovate +  and lanceovate or linear +
indeterminate +  and determinate +
Randall J. Bayer +
(Greene) R. J. Bayer +
4.8 cm48 mm <br />0.048 m <br /> (6.5 cm65 mm <br />0.065 m <br />) +
2 cm20 mm <br />0.02 m <br /> (4 cm40 mm <br />0.04 m <br />) +
0.6 cm6 mm <br />0.006 m <br /> (0.9 cm9 mm <br />0.009 m <br />) +
decurrent +
Antennaria canadensis +
compound +  and simple +
spatulate;oblanceolate;spatulate;oblanceolate;linear;lanceolate;elliptic;cuneate +
5-ribbed +, 3-ribbed +  and 2-ribbed +
muriculate +, papillate +  and smooth +
1.2 cm12 mm <br />0.012 m <br /> (3 cm30 mm <br />0.03 m <br />) +
Canadian pussytoes +  and antennaire du Canada +
0.65 cm6.5 mm <br />0.0065 m <br /> (0.8 cm8 mm <br />0.008 m <br />) +
red +, yellow +  and white +
0.4 cm4 mm <br />0.004 m <br /> (0.65 cm6.5 mm <br />0.0065 m <br />) +
papillate +
mostly ellipsoid +  and ovoid +
pistillate +  and staminate +
Man. +, N.B. +, Nfld. and Labr. (Nfld.) +, N.S. +, Ont. +, P.E.I. +, Que. +, Sask. +, Yukon +, Conn. +, Del. +, Ind. +, Maine +, Md. +, Mass. +, Mich. +, Minn. +, N.H. +, N.J. +, N.Y. +, Ohio +, Pa. +, R.I. +, Vt. +, Va. +, W.Va. +  and Wis. +
0–1500 m +
green-glabrous +  and tomentose +
papillate +
pistillate +, staminate +  and neuter +
winged +  and beaked +
dispersed +
Pastures, dry fields, openings in woodlands and forests, and rock barrens +
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 +
0.7 cm7 mm <br />0.007 m <br /> (1 cm10 mm <br />0.01 m <br />) +
sessile +  and petiolate +
cauline +  and basal +
rarely lanceovate +  and lanceolate +
2-carpellate +
persistent +
0.7 cm7 mm <br />0.007 m <br /> (0.9 cm9 mm <br />0.009 m <br />) +
Flowering mid spring–early summer. +
bearing subulate enations +, hairy +  and bristly +
flat;convex or ovoid +
exalbuminous +
appendaged +  and truncate +
papillate +
Antennaria canadensis var. randii +, Antennaria canadensis var. spathulata +, Antennaria neglecta var. randii +, Antennaria neodioica subsp. canadensis +, Antennaria neodioica var. randii +  and Antennaria spathulata +
Antennaria howellii subsp. canadensis +
Antennaria howellii +
subspecies +
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 />) +