Antennaria corymbosa

E. E. Nelson

Bot. Gaz. 27: 212. 1899.

Common names: Flat-top or meadow pussytoes
Endemic
Synonyms: Antennaria acuta Rydberg Antennaria dioica var. corymbosa (E. E. Nelson) Jepson Antennaria hygrophila Greene Antennaria nardina Greene
Treatment appears in FNA Volume 19. Treatment on page 407. Mentioned on page 390, 393, 396, 409, 410, 415.

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). Heads 3–7 in corymbiform arrays. Involucres: staminate 4–5.3 mm; pistillate 4–5 mm. Phyllaries (bases each with distinct dark-brown or blackish spot) distally white or light-brown. Corollas: staminate 2–3.2 mm; pistillate 2.5–3.5 mm. Cypselae 0.5–1 mm, slightly papillate; pappi: staminate 2.5–3.5 mm; pistillate 3.5–4.5 mm. 2n = 28.


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

Distribution

V19-656-distribution-map.gif

Calif., Colo., Idaho, Mont., Nev., N.Mex., Oreg., Utah, Wash., Wyo.

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.

Selected References

None.

Lower Taxa

None.
... more about "Antennaria corymbosa"
more or less tomentose +  and sericeous or glabrescent +
scarious +
mostly ovate +  and lanceovate or linear +
indeterminate +  and determinate +
Randall J. Bayer +
E. E. Nelson +
1.8 cm18 mm <br />0.018 m <br /> (4.5 cm45 mm <br />0.045 m <br />) +
0.2 cm2 mm <br />0.002 m <br /> (0.4 cm4 mm <br />0.004 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 +
0.8 cm8 mm <br />0.008 m <br /> (1.3 cm13 mm <br />0.013 m <br />) +
Flat-top or meadow pussytoes +
pistillate +  and staminate +
red +, yellow +  and white +
0.25 cm2.5 mm <br />0.0025 m <br /> (0.35 cm3.5 mm <br />0.0035 m <br />) +
papillate +
mostly ellipsoid +  and ovoid +
pistillate +  and staminate +
Calif. +, Colo. +, Idaho +, Mont. +, Nev. +, N.Mex. +, Oreg. +, Utah +, Wash. +  and Wyo. +
1900–3500 m +
gray-tomentose +
papillate +
pistillate +, staminate +  and neuter +
winged +  and beaked +
dispersed +
Moist subalpine-alpine willow thickets in the Rocky and Cascade mountains, the Sierra Nevada and mountains of the Great Basin +
in corymbiform , paniculiform , racemiform or subcapitate , arrays +  and singly +
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 +
0.4 cm4 mm <br />0.004 m <br /> (0.5 cm5 mm <br />0.005 m <br />) +
sessile +  and petiolate +
cauline +  and basal +
rarely lanceovate +  and lanceolate +
2-carpellate +
pistillate +  and staminate +
persistent +
0.35 cm3.5 mm <br />0.0035 m <br /> (0.45 cm4.5 mm <br />0.0045 m <br />) +
Flowering early–mid summer. +
bearing subulate enations +, hairy +  and bristly +
flat;convex or ovoid +
exalbuminous +
appendaged +  and truncate +
papillate +
Antennaria acuta +, Antennaria dioica var. corymbosa +, Antennaria hygrophila +  and Antennaria nardina +
Antennaria corymbosa +
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 />) +