Antennaria aromatica

Evert

Madroño 31: 109, fig. 1. 1984.

Common names: Scented or aromatic pussytoes
Endemic
Treatment appears in FNA Volume 19. Treatment on page 408. Mentioned on page 390, 394, 409, 410, 411, 415.

Dioecious. Plants 2–7 cm (stems stipitate-glandular). Stolons 0.5–2.5 cm. Basal leaves 1-nerved, usually cuneate-spatulate, sometimes oblanceolate, 5–16 × 3–10 mm, tips mucronate, faces gray-pubescent (and stipitate-glandular; fresh leaves citronella scented). Cauline leaves linear, 3–14 mm, not flagged (apices acute). Heads borne singly or 2–5 in corymbiform arrays. Involucres: staminate 4.5–6.5 mm; pistillate 5–7 (–9) mm. Phyllaries distally light-brown, dark-brown, or olivaceous. Corollas: staminate 2.5–3 mm; pistillate 3.5–4.5 mm. Cypselae 0.9–2 mm, sparingly papillate; pappi: staminate 3–4 mm; pistillate 4.5–5.5 mm. 2n = 28, 56, 84.


Phenology: Flowering mid summer.
Habitat: Subalpine limestone talus
Elevation: 1600–3000 m

Discussion

Known only from the northern Rockies, Antennaria aromatica is characterized by glandulosity, cuneate leaves, and odor of citronella in crushed leaves of living material. It is most closely related to A. densifolia of the Northwest Territories and Yukon (R. J. Bayer 1989c). Some collections of pistillate plants from Colorado and other areas of the Rockies superficially resemble A. aromatica and undoubtedly have A. aromatica in their parentage. They are non-glandular and odorless and are closer to the type of A. pulvinata, which is included in the circumscription of A. rosea, as A. rosea subsp. pulvinata (Bayer). Antennaria aromatica is a sexual progenitor of the A. rosea and A. alpina polyploid complexes.

Selected References

None.

Lower Taxa

None.
... more about "Antennaria aromatica"
84 +, 56 +  and 28 +
more or less tomentose +  and sericeous or glabrescent +
scarious +
mostly ovate +  and lanceovate or linear +
indeterminate +  and determinate +
Randall J. Bayer +
0.5 cm5 mm <br />0.005 m <br /> (1.6 cm16 mm <br />0.016 m <br />) +
0.3 cm3 mm <br />0.003 m <br /> (1 cm10 mm <br />0.01 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 +
0.3 cm3 mm <br />0.003 m <br /> (1.4 cm14 mm <br />0.014 m <br />) +
Scented or aromatic pussytoes +
pistillate +  and staminate +
red +, yellow +  and white +
0.35 cm3.5 mm <br />0.0035 m <br /> (0.45 cm4.5 mm <br />0.0045 m <br />) +
papillate +
mostly ellipsoid +  and ovoid +
pistillate +  and staminate +
Alta. +, Idaho +, Mont. +  and Wyo. +
1600–3000 m +
gray-pubescent +
papillate +
pistillate +, staminate +  and neuter +
winged +  and beaked +
dispersed +
Subalpine limestone talus +
indeterminate +
homogamous +  and heterogamous +
each +  and sessile +
pistillate +  and staminate +
0.7 cm7 mm <br />0.007 m <br /> (0.9 cm9 mm <br />0.009 m <br />) +
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 +
persistent +
0.45 cm4.5 mm <br />0.0045 m <br /> (0.55 cm5.5 mm <br />0.0055 m <br />) +
Flowering mid summer. +
bearing subulate enations +, hairy +  and bristly +
flat;convex or ovoid +
exalbuminous +
appendaged +  and truncate +
papillate +
Compositae +
Antennaria aromatica +
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 />) +