Stenotus lanuginosus var. andersonii

(Rydberg) C. A. Morse

Sida 21: 2093. 2005.

Endemic
Basionym: Stenotus andersonii Rydberg Bull. Torrey Bot. Club 27: 615. 1900
Synonyms: Haplopappus lanuginosus subsp. andersonii (Rydberg) H. M. Hall Haplopappus lanuginosus var. andersonii (Rydberg) Cronquist
Treatment appears in FNA Volume 20. Treatment on page 177.
Revision as of 20:45, 29 July 2020 by imported>Volume Importer
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Leaf-blades usually greenish, villous to glabrous and capitate-glandular, or occasionally lanate. Peduncles villous to glabrous or occasionally lanate immediately proximal to heads, usually capitate-glandular. Mid phyllaries 1.3–2.2 (–2.4) mm wide, wholly green or margins narrowly scarious to 0.2 mm wide.


Phenology: Flowering late spring; fruiting early summer.
Habitat: Open pine forests, alpine meadows, and sagebrush steppe on granitic, basaltic, or seldomly calcareous soils
Elevation: 1200–3500 m

Discussion

Populations from west-central Idaho assigned to var. andersonii on the basis of phyllary width tend to be intermediate with the typical variety. Larger collections often turn up one or two eglandular individuals. Populations from Montana are frequently lanate and eglandular. They have been included in this variety based on phyllary characters alone.

Selected References

None.

Lower Taxa

None.

"fine" is not a number."except-for margins or with narrow green portions longer than broad" is not a number.

stipitate-glandular +  and villous +
not tailed +, rounded +  and obtuse +
0.25 cm2.5 mm <br />0.0025 m <br /> (0.3 cm3 mm <br />0.003 m <br />) +
distinct +
acute;acuminate +
subequal +
scarious +
usually triangular +  and linear +
usually deltate +  and lanceolate +
indeterminate +  and determinate +
Caleb A. Morse +
(Rydberg) C. A. Morse +
attenuate +
Stenotus andersonii +
7 cm70 mm <br />0.07 m <br /> (10 cm100 mm <br />0.1 m <br />) +
2.4 cm24 mm <br />0.024 m <br /> (7 cm70 mm <br />0.07 m <br />) +
linear;narrowly oblanceolate or spatulate +
0.15 cm1.5 mm <br />0.0015 m <br /> (0.9 cm9 mm <br />0.009 m <br />) +
rugulose +  and muricate +
not 2-lipped +  and actinomorphic +
vase--shaped +
0.55 cm5.5 mm <br />0.0055 m <br /> (0.85 cm8.5 mm <br />0.0085 m <br />) +
beaked +, 2-ribbed +  and 5-ribbed +
0.5 cm5 mm <br />0.005 m <br /> (0.65 cm6.5 mm <br />0.0065 m <br />) +
flattened +, less prismatic +  and oblanceoloid or linear +
fertile +  and bisexual +
fertile +  and bisexual +
Idaho +  and Mont. 2n = 18 +
1200–3500 m +
sericeous +
villous +  and lanate or glabrous adaxially +
pistillate +, staminate +  and neuter +
winged +  and beaked +
dispersed +
Open pine forests, alpine meadows, and sagebrush steppe on granitic, basaltic, or seldomly calcareous soils +
indeterminate +
heterogamous +  and homogamous +
each +  and sessile +
0.5 cm5 mm <br />0.005 m <br /> (0.6 cm6 mm <br />0.006 m <br />) +
1.3 cm13 mm <br />0.013 m <br /> (2.8 cm28 mm <br />0.028 m <br />) +
broadly campanulate;hemispheric +
0.6 cm6 mm <br />0.006 m <br /> (1.5 cm15 mm <br />0.015 m <br />) +
0.9 cm9 mm <br />0.009 m <br /> (1.5 cm15 mm <br />0.015 m <br />) +
2.5mm;7mm +
lanate +, capitate-glandular +, villous +  and glabrous +
triangular +
except-for margins or with narrow green portions longer than broad +
fimbriate +
0mm +  and 0.2mm +
0.8 cm8 mm <br />0.008 m <br /> (1.25 cm12.5 mm <br />0.0125 m <br />) +
0.1 cm1 mm <br />0.001 m <br /> (0.4 cm4 mm <br />0.004 m <br />) +
0.13 cm1.3 mm <br />0.0013 m <br /> (0.22 cm2.2 mm <br />0.0022 m <br />) +
0.75 cm7.5 mm <br />0.0075 m <br /> (1.15 cm11.5 mm <br />0.0115 m <br />) +
0.1 cm1 mm <br />0.001 m <br /> (0.3 cm3 mm <br />0.003 m <br />) +
2-carpellate +
0.5 cm5 mm <br />0.005 m <br /> (0.95 cm9.5 mm <br />0.0095 m <br />) +
persistent +
villous +  and glabrous or occasionally lanate +
2 cm20 mm <br />0.02 m <br /> (15.5 cm155 mm <br />0.155 m <br />) +
Flowering late spring +  and fruiting early summer. +
3-nerved +  and 1-nerved +
oblong +  and broadly oblanceolate +
except-for margins or with narrow green portions longer than broad +
bearing subulate enations +, hairy +  and bristly +
exalbuminous +
stipitate-glandular +, villous +  and lanate +
2 times appendages +
0.06 cm0.6 mm <br />6.0e-4 m <br /> (0.18 cm1.8 mm <br />0.0018 m <br />) +
0.06 cm0.6 mm <br />6.0e-4 m <br /> (0.14 cm1.4 mm <br />0.0014 m <br />) +
subulate +  and broadly lanceolate +
appendaged +  and truncate +
papillate +  and smooth +
Haplopappus lanuginosus subsp. andersonii +  and Haplopappus lanuginosus var. andersonii +
Stenotus lanuginosus var. andersonii +
Stenotus lanuginosus +
variety +
ampliate +
vase--shaped +
30 cm300 mm <br />0.3 m <br /> (60 cm600 mm <br />0.6 m <br />) +
2 cm20 mm <br />0.02 m <br /> (30 cm300 mm <br />0.3 m <br />) +
plant +  and cespitose +