Antennaria flagellaris

(A. Gray) A. Gray

Proc. Amer. Acad. Arts 17: 212. 1882.

Common names: Whip or stoloniferous pussytoes
IllustratedEndemic
Basionym: Antennaria dimorpha var. flagellaris A. Gray in C. Wilkes et al., U.S. Expl. Exped. 17: 366. 1874
Treatment appears in FNA Volume 19. Treatment on page 399. Mentioned on page 389, 393.

Dioecious. Plants 0.5–1.5 cm. Stolons 3–10 cm (leafless except tips, relatively slender). Basal leaves 1-nerved, linear-oblanceolate, 16–18 × 1.5–2 mm, tips acute, faces ± gray-tomentose. Cauline leaves linear or oblanceolate, 7–15 mm, not flagged. Heads borne singly. Involucres: staminate 6–7 mm; pistillate 7–9 mm. Phyllaries (relatively wide) distally brown to blackish or whitish. Corollas: staminate 3–4.5 mm; pistillate 5–7 mm. Cypselae 2–3 mm, papillate; pappi: staminate 3.5–4.5 mm; pistillate 6–8 mm. 2n = 28.


Phenology: Flowering mid–late spring.
Habitat: Seasonally dry basins in foothills of mountains, often associated with sagebrush flats
Elevation: 900–2700 m

Distribution

V19-634-distribution-map.gif

B.C., Calif., Idaho, Nev., Oreg., S.Dak., Wash., Wyo.

Discussion

Antennaria flagellaris is among the more distinctive species of Antennaria, with its flagelliform stolons (whiplike with leaves only at the very end) and heads borne singly. It belongs to the Dimorphae group (R. J. Bayer 1990; Bayer et al. 1996).

Selected References

None.

Lower Taxa

None.
... more about "Antennaria flagellaris"
more or less tomentose +  and sericeous or glabrescent +
scarious +
mostly ovate +  and lanceovate or linear +
subcapitate +, racemiform +, paniculiform +  and corymbiform +
indeterminate +  and determinate +
Randall J. Bayer +
(A. Gray) A. Gray +
1.6 cm16 mm <br />0.016 m <br /> (1.8 cm18 mm <br />0.018 m <br />) +
0.15 cm1.5 mm <br />0.0015 m <br /> (0.2 cm2 mm <br />0.002 m <br />) +
decurrent +
Antennaria dimorpha var. flagellaris +
compound +  and simple +
spatulate;oblanceolate;spatulate;oblanceolate;linear;lanceolate;elliptic;cuneate +
5-ribbed +, 3-ribbed +  and 2-ribbed +
muriculate +, papillate +  and smooth +
oblanceolate +  and linear +
0.7 cm7 mm <br />0.007 m <br /> (1.5 cm15 mm <br />0.015 m <br />) +
Whip or stoloniferous pussytoes +
pistillate +  and staminate +
red +, yellow +  and white +
0.5 cm5 mm <br />0.005 m <br /> (0.7 cm7 mm <br />0.007 m <br />) +
papillate +
mostly ellipsoid +  and ovoid +
pistillate +  and staminate +
B.C. +, Calif. +, Idaho +, Nev. +, Oreg. +, S.Dak. +, Wash. +  and Wyo. +
900–2700 m +
gray-tomentose +
papillate +
pistillate +, staminate +  and neuter +
winged +  and beaked +
dispersed +
Seasonally dry basins in foothills of mountains, often associated with sagebrush flats +
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 /> (0.9 cm9 mm <br />0.009 m <br />) +
sessile +  and petiolate +
cauline +  and basal +
rarely lanceovate +  and lanceolate +
2-carpellate +
pistillate +  and staminate +
persistent +
0.6 cm6 mm <br />0.006 m <br /> (0.8 cm8 mm <br />0.008 m <br />) +
Flowering mid–late spring. +
Proc. Amer. Acad. Arts +
bearing subulate enations +, hairy +  and bristly +
flat;convex or ovoid +
exalbuminous +
Illustrated +  and Endemic +
appendaged +  and truncate +
papillate +
Compositae +
Antennaria flagellaris +
Antennaria +
species +
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 />) +