Flora of North America species comparison

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Antennaria corymbosa

flat-top pussytoes, meadow pussytoes
Habit Dioecious.
Plants

6–15 cm.
Stolons

1–10 cm.
Basal leaves

1-nerved, spatulate, 18–45 × 2–4 mm, tips mucronate, faces ± gray-tomentose.
Cauline leaves

linear, 8–13 mm, not flagged (apices acuminate).
Involucres

staminate 4–5.3 mm;

pistillate 4–5 mm.
Corollas

staminate 2–3.2 mm;

pistillate 2.5–3.5 mm.
Phyllaries

(bases each with distinct dark brown or blackish spot) distally white or light brown.
Heads

3–7 in corymbiform arrays.
Cypselae

0.5–1 mm, slightly papillate;

pappi: staminate 2.5–3.5 mm;

pistillate 3.5–4.5 mm.
2n

= 28.

Antennaria corymbosa
Phenology Flowering early–mid summer.
Habitat Moist subalpine-alpine willow thickets in the Rocky and Cascade mountains, the Sierra Nevada and mountains of the Great Basin
Elevation 1900–3500 m (6200–11500 ft)
Distribution
from FNA
CA; CO; ID; MT; NM; NV; OR; UT; WA; WY
[WildflowerSearch map]
[BONAP county map]
Discussion

Antennaria corymbosa is characterized by linear-oblanceolate basal leaves and white-tipped phyllaries, each with a distinct black spot near the base of the scarious portion. A form with black phyllaries (A. acuta) occurs sporadically throughout the range of the species (R. J. Bayer 1988). Antennaria corymbosa is a sexual progenitor of the A. rosea complex.

(Discussion copyrighted by Flora of North America; reprinted with permission.)
Source FNA vol. 19, p. 407.
Parent taxa Asteraceae > tribe Gnaphalieae > Antennaria
Sibling taxa
A. alpina, A. anaphaloides, A. arcuata, A. argentea, A. aromatica, A. densifolia, A. dimorpha, A. dioica, A. flagellaris, A. friesiana, A. geyeri, A. howellii, A. lanata, A. luzuloides, A. marginata, A. media, A. microphylla, A. monocephala, A. neglecta, A. parlinii, A. parvifolia, A. plantaginifolia, A. pulchella, A. pulcherrima, A. racemosa, A. rosea, A. rosulata, A. soliceps, A. solitaria, A. stenophylla, A. suffrutescens, A. umbrinella, A. virginica
Synonyms A. acuta, A. dioica var. corymbosa, A. hygrophila, A. nardina
Name authority E. E. Nelson: Bot. Gaz. 27: 212. (1899)
Web links 
Unless otherwise noted, all data comes from the online version of the Flora of North America, who have made most of their content available via a Creative Commons license (CC BY 4.0).



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