Erigeron chrysopsidis var. austiniae

(Greene) G. L. Nesom

Phytologia 73: 198. 1992.

Endemic
Basionym: Erigeron austiniae Greene Erythea 3: 100. 1895 (as austinae)
Synonyms: Erigeron chrysopsidis subsp. austiniae (Greene) Cronquist
Treatment appears in FNA Volume 20. Treatment on page 287.

Stems hirsuto-villous (hairs essentially equal). Involucres 4.5–6 mm. Ray laminae absent or not surpassing involucres. Disc corollas 3.5–4.5 mm. 2n = 18.


Phenology: Flowering May–Jun(–Jul).
Habitat: Gravelly soil, open slopes, ridges, crevices, often with sagebrush or juniper
Elevation: 1200–2000 m

Distribution

V20-595-distribution-map.gif

Calif., Idaho, Nev., Oreg.

Discussion

Selected References

None.

Lower Taxa

None.
not tailed +, rounded +  and obtuse +
distinct +
subequal +
scarious +
usually triangular +  and linear +
usually deltate +  and lanceolate +
paniculiform +, corymbiform +  and loose +
indeterminate +  and determinate +
Guy L. Nesom +
(Greene) G. L. Nesom +
decurrent +
Erigeron austiniae +
7 cm70 mm <br />0.07 m <br /> (9 cm90 mm <br />0.09 m <br />) +
4 cm40 mm <br />0.04 m <br /> (7 cm70 mm <br />0.07 m <br />) +
linear;linear-oblanceolate +
reduced +
1mm;3mm +
rugulose +  and muricate +
not 2-lipped +  and actinomorphic +
0.2 cm2 mm <br />0.002 m <br /> (1 cm10 mm <br />0.01 m <br />) +
beaked +, 2-ribbed +  and 5-ribbed +
subterete +, oblong +  and oblong-obovoid compressed +
fertile +  and bisexual +
0.35 cm3.5 mm <br />0.0035 m <br /> (0.45 cm4.5 mm <br />0.0045 m <br />) +
fertile +  and bisexual +
Calif. +, Idaho +, Nev. +  and Oreg. +
1200–2000 m +
strigose +, hispidulous +  and loosely strigose +
pistillate +, staminate +  and neuter +
winged +  and beaked +
dispersed +
Gravelly soil, open slopes, ridges, crevices, often with sagebrush or juniper +
disciform +  and discoid +
in loose , corymbiform or paniculiform arrays +  and singly +
indeterminate +
heterogamous +  and homogamous +
each +  and sessile +
0.35 cm3.5 mm <br />0.0035 m <br /> (0.45 cm4.5 mm <br />0.0045 m <br />) +
0.5 cm5 mm <br />0.005 m <br /> (3.5 cm35 mm <br />0.035 m <br />) +
0.45 cm4.5 mm <br />0.0045 m <br /> (0.75 cm7.5 mm <br />0.0075 m <br />) +
turbinate;hemispheric +
0.45 cm4.5 mm <br />0.0045 m <br /> (0.6 cm6 mm <br />0.006 m <br />) +
0.9 cm9 mm <br />0.009 m <br /> (1.7 cm17 mm <br />0.017 m <br />) +
not coiling +  and tubular +
0.2 cm2 mm <br />0.002 m <br /> (1 cm10 mm <br />0.01 m <br />) +
petiolate +  and sessile +
erect;spreading +
deltate +
Not (?) +  and Scarious (?) +
2-carpellate +
Flowering May–Jun(–Jul). +
3-nerved +  and 1-nerved +
narrowly elliptic +  and linear-lanceolate +
bearing subulate enations +, hairy +  and bristly +
exalbuminous +
inconspicuous +
branched +  and simple +
prostrate +  and decumbent +
appendaged +  and truncate +
papillate +  and smooth +
Erigeron chrysopsidis subsp. austiniae +
Erigeron chrysopsidis var. austiniae +
Erigeron chrysopsidis +
variety +
inflated +  and tubular +
90 cm900 mm <br />0.9 m <br /> (100 cm1,000 mm <br />1 m <br />) +
3 cm30 mm <br />0.03 m <br /> (15 cm150 mm <br />0.15 m <br />) +
tree +, shrub +  and subshrub +