Petradoria pumila var. pumila

IllustratedEndemic
Treatment appears in FNA Volume 20. Treatment on page 172.
Revision as of 20:44, 29 July 2020 by imported>Volume Importer
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Stems 0.8–3 cm. Leaf-blades usually 3–5-nerved, broadly linear to oblanceolate, rarely lanceolate, 30–120 × 2–12 mm. Heads 25+. Involucres 6–9.5 × 1.9–3 mm. Phyllaries 10–21. Ray-florets (1–) 2–3; corollas 4.5–9 mm, laminae 1–2.4 mm wide. Disc-florets 2–4; corollas 4.5–6.2 mm, lobes 0.8–1.3 mm. 2n = 18, 36.


Phenology: Flowering summer–fall.
Habitat: Dry, open, rocky places
Elevation: 1000–3100 m

Distribution

V20-376-distribution-map.gif

Ariz., Calif., Colo., Idaho, Nev., N.Mex., Utah, Wyo.

Discussion

Selected References

None.

Lower Taxa

None.
not tailed +, rounded +  and obtuse +
distinct +
mucronate;acute;attenuate obtuse +
subequal +
scarious +
usually triangular +  and linear +
usually deltate +  and lanceolate +
spiciform +, racemiform +, paniculiform +  and corymbiform +
indeterminate +  and determinate +
Lowell E. Urbatsch +, Roland P. Roberts +  and Kurt M. Neubig +
(Nuttall) Greene +
cuneate +  and attenuate +
expanded +
Chrysoma pumila +
linear;lanceolate or oblanceolate +
rugulose +  and muricate +
linear-lanceolate +
not 2-lipped +  and actinomorphic +
0.45 cm4.5 mm <br />0.0045 m <br /> (0.62 cm6.2 mm <br />0.0062 m <br />) +
beaked +, 2-ribbed +  and 5-ribbed +
cylindric +  and slightly compressed +
0.35 cm3.5 mm <br />0.0035 m <br /> (0.55 cm5.5 mm <br />0.0055 m <br />) +
fertile +  and bisexual +
Ariz. +, Calif. +, Colo. +, Idaho +, Nev. +, N.Mex. +, Utah +  and Wyo. +
1000–3100 m +
resinous +
gland-dotted +
glabrous +  and scabrous +
pistillate +, staminate +  and neuter +
winged +  and beaked +
dispersed +
Dry, open, rocky places +
indeterminate +
heterogamous +  and homogamous +
each +  and sessile +
0.6 cm6 mm <br />0.006 m <br /> (0.95 cm9.5 mm <br />0.0095 m <br />) +
cylindric;turbinate +
0.19 cm1.9 mm <br />0.0019 m <br /> (0.3 cm3 mm <br />0.003 m <br />) +
2.5mm;4.5mm +
1mm;2.4mm +
3 cm30 mm <br />0.03 m <br /> (12 cm120 mm <br />0.12 m <br />) +
lanceolate;broadly linear;oblanceolate +
sessile +  and petiolate +
cauline +  and basal +
erect;spreading +
triangular +
2-carpellate +
persistent +
0.35 cm3.5 mm <br />0.0035 m <br /> (0.7 cm7 mm <br />0.007 m <br />) +
scabrous +  and glabrous +
0.1 cm1 mm <br />0.001 m <br /> (0.5 cm5 mm <br />0.005 m <br />) +
Flowering summer–fall. +
0.1 cm1 mm <br />0.001 m <br /> (0.7 cm7 mm <br />0.007 m <br />) +
ovate +  and oblong +
0.05 cm0.5 mm <br />5.0e-4 m <br /> (0.1 cm1 mm <br />0.001 m <br />) +
sessile +  and petiolate +
bearing subulate enations +, hairy +  and bristly +
exalbuminous +
Illustrated +  and Endemic +
resin-coated +
1 +  and 20 +
scabridulous +
0.8 cm8 mm <br />0.008 m <br /> (3 cm30 mm <br />0.03 m <br />) +
appendaged +  and truncate +
papillate +  and smooth +
Compositae +
Petradoria pumila var. pumila +
Petradoria pumila +
variety +
expanded +
tubular +
0.2 cm2 mm <br />0.002 m <br /> (0.35 cm3.5 mm <br />0.0035 m <br />) +
8 cm80 mm <br />0.08 m <br /> (30 cm300 mm <br />0.3 m <br />) +
tree +, shrub +  and subshrub +