Flora of North America species comparison

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Antennaria racemosa

Hooker's pussy-toes, raceme pussytoes, racemose pussytoes, slender pussy-toes
Habit Dioecious.
Plants

12–50 cm (stems stipitate-glandular distally).
Stolons

3–8 cm.
Basal leaves

3-nerved, elliptic to oblong, 30–100 × 10–40 mm, tips mucronate, abaxially tomentose, adaxially glabrous.
Cauline leaves

linear, 10–30 mm, not flagged (apices obtuse to acute).
Involucres

staminate 4–8 mm; pistillate 7–9 mm.
Corollas

staminate 3–4 mm; pistillate 3–4 mm.
Phyllaries

(relatively wide) distally white or light brown (apices blunt).
Heads

3–12 in loose, racemiform to paniculiform arrays.
Cypselae

1–1.5 mm, glabrous or slightly papillate;

pappi: staminate 3–4.5 mm; pistillate 4.5–7 mm.
2n

= 28.

Antennaria racemosa
Phenology Flowering summer.
Habitat Moist, cool, montane and subalpine coniferous forests and roadcuts in forests
Elevation 1200–3000 m (3900–9800 ft)
Distribution
from FNA
CA; ID; MT; OR; WA; WY; AB; BC
[WildflowerSearch map]
[BONAP county map]
Discussion

Antennaria racemosa is characterized by adaxially glabrous basal leaves and open, racemiform to paniculiform arrays of heads (R. J. Bayer 1985b). The young leaves have a slight odor of citronella when crushed. Antennaria racemosa has a pivotal sexual genome of the Catipes group and has contributed to the origin of clones in the A. howellii, A. parlinii, and A. rosea polyploid agamic complexes (Bayer 1985, 1985b, 1990b).

(Discussion copyrighted by Flora of North America; reprinted with permission.)
Source FNA vol. 19, p. 401.
Parent taxa Asteraceae > tribe Gnaphalieae > Antennaria
Sibling taxa
A. alpina, A. anaphaloides, A. arcuata, A. argentea, A. aromatica, A. corymbosa, 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. rosea, A. rosulata, A. soliceps, A. solitaria, A. stenophylla, A. suffrutescens, A. umbrinella, A. virginica
Synonyms A. petasites, A. piperi
Name authority Hooker: Fl. Bor.-Amer. 1: 330. (1834)
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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