Antennaria howellii subsp. petaloidea

(Fernald) R. J. Bayer

Brittonia 41: 397. 1989

Common names: Petaloid pussytoes antennaire pétaloïde
Basionyms: Antennaria neodioica var. petaloidea Fernald Proc. Boston Soc. Nat. Hist. 28: 245. 1898
Synonyms: Antennaria appendiculata Fernald Antennaria concolor Piper Antennaria neglecta var. petaloidea (Fernald) Cronquist Antennaria neglecta var. subcorymbosa Fernald Antennaria neodioica subsp. petaloidea (Fernald) R. J. Bayer & Stebbins Antennaria neodioica var. petaloidea Fernald Antennaria pedicellata Greene Antennaria petaloidea unknown Antennaria petaloidea var. novaboracensis Fernald Antennaria petaloidea var. scariosa Fernald Antennaria petaloidea var. subcorymbosa (Fernald) Fernald Antennaria stenolepis unknown
Treatment appears in FNA Volume 19. Treatment on page 405. Mentioned on page 404.
Plants 8–35 cm. Stolons 4–9 cm (leaves along stolons smaller than in rosettes at ends). Basal leaves 1(–3)-nerved, cuneate-oblanceolate, spatulate, or spatulate-obovate (without distinct petioles), 15–45(–65) × 5–20 mm, tips mucronate, faces abaxially tomentose, adaxially gray-pubescent to floccose-glabrescent. Cauline leaves linear, 10–35 mm, mid and distal flagged. Heads 4–10(–15) in corymbiform arrays. Involucres: staminate (uncommon) 6–6.5 mm; pistillate 7–11 mm. Phyllaries distally white or cream. Corollas: staminate 3–4 mm; pistillate 4–6.5(–8) mm. Cypselae 0.8–1.7 mm, minutely papillate; pappi: staminate 4–4.5 mm; pistillate 5.5–8 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: 0–2200 m



St. Pierre and Miquelon, Alta., B.C., N.B., Nfld. and Labr. (Nfld.), N.S., Ont., P.E.I., Que., Colo., Conn., Del., Ill., Ind., Maine, Md., Mass., Mich., Minn., Mont., N.H., N.J., N.Y., N.C., N.Dak., Ohio, Oreg., Pa., R.I., S.Dak., Vt., Va., Wash., W.Va., Wis., Wyo.


Subspecies petaloidea is most common in the eastern half of the range of Antennaria howellii and is frequent as far west as British Columbia and Washington. Its primary sexual progenitors include A. plantaginifolia and A. neglecta (R. J. Bayer 1985).



Lower Taxa

No lower taxa listed.

AuthorRandall J. Bayer +
Authority(Fernald) R. J. Bayer +
BasionymsAntennaria neodioica var. petaloidea +
Common namePetaloid pussytoes + and antennaire pétaloïde +
DistributionSt. Pierre and Miquelon +, Alta. +, B.C. +, N.B. +, Nfld. and Labr. (Nfld.) +, N.S. +, Ont. +, P.E.I. +, Que. +, Colo. +, Conn. +, Del. +, Ill. +, Ind. +, Maine +, Md. +, Mass. +, Mich. +, Minn. +, Mont. +, N.H. +, N.J. +, N.Y. +, N.C. +, N.Dak. +, Ohio +, Oreg. +, Pa. +, R.I. +, S.Dak. +, Vt. +, Va. +, Wash. +, W.Va. +, Wis. + and Wyo. +
Elevation0–2200 m +
HabitatPastures, dry fields, openings in woodlands and forests, and rock barrens +
IllustratorYevonn Wilson-Ramsey +
PhenologyFlowering mid spring–early summer. +
Publication titleBrittonia +
Publication year1989 +
ReferenceNone +
Source xml grained fna xml/V19-20-21/V19 652.xml +
SynonymsAntennaria appendiculata +, Antennaria concolor +, Antennaria neglecta var. petaloidea +, Antennaria neglecta var. subcorymbosa +, Antennaria neodioica subsp. petaloidea +, Antennaria neodioica var. petaloidea +, Antennaria pedicellata +, Antennaria petaloidea +, Antennaria petaloidea var. novaboracensis +, Antennaria petaloidea var. scariosa +, Antennaria petaloidea var. subcorymbosa + and Antennaria stenolepis +
Taxon familyAsteraceae +
Taxon nameAntennaria howellii subsp. petaloidea +
Taxon parentAntennaria howellii +
Taxon ranksubspecies +
VolumeVolume 19 +