Oreostemma alpigenum var. andersonii

(A. Gray) G. L. Nesom

Phytologia 74: 312. 1993.

Common names: Anderson’s mountaincrown
Endemic
Basionym: Erigeron andersonii A. Gray Proc. Amer. Acad. Arts 6: 540. 1865
Synonyms: Aster alpigenus var. andersonii (A. Gray) M. Peck Oreostemma alpigenum subsp. andersonii (A. Gray) Semple
Treatment appears in FNA Volume 20. Treatment on page 360.

Plants (4–) 8–40 (–70) cm. Basal leaf-blades linear-oblanceolate to narrowly oblanceolate, (30–) 80–120 (–350) × (1–) 2–6 (–9) mm, apices acute. Cypselae strigillose. 2n = 18, 36.


Phenology: Flowering Jun–Sep.
Habitat: Bogs (sometimes with Darlingtonia), marshes, moist to wet meadows, lake edges, pine woods, alpine tundra
Elevation: (1200–)1500–3300(–3700) m

Discussion

Selected References

None.

Lower Taxa

None.

"[" is not declared as a valid unit of measurement for this property."]" is not declared as a valid unit of measurement for this property.

not tailed +, rounded +  and obtuse +
distinct +
subequal +
scarious +
usually triangular +  and linear +
usually deltate +  and lanceolate +
spiciform +, racemiform +, paniculiform +  and corymbiform +
indeterminate +  and determinate +
Guy L. Nesom +
(A. Gray) G. L. Nesom +
12 cm120 mm <br />0.12 m <br /> (35 cm350 mm <br />0.35 m <br />) +
0.6 cm6 mm <br />0.006 m <br /> (0.9 cm9 mm <br />0.009 m <br />) +
8 cm80 mm <br />0.08 m <br /> (12 cm120 mm <br />0.12 m <br />) +
0.2 cm2 mm <br />0.002 m <br /> (0.6 cm6 mm <br />0.006 m <br />) +
decurrent +
Erigeron andersonii +
linear;oblanceolate +
rugulose +  and muricate +
Anderson’s mountaincrown +
not 2-lipped +  and actinomorphic +
yellowish +, blue +  and purple +
beaked +, 2-ribbed +  and 5-ribbed +
cylindric +
fertile +  and bisexual +
fertile +  and bisexual +
Calif. +, Nev. +  and Oreg. +
(1200–)1500–3300(–3700) m +
strigillose +, glabrous +, stipitate-glandular +  and villous +
oblanceolate;linear-elliptic +
subequal +
indurate +
pistillate +, staminate +  and neuter +
winged +  and beaked +
dispersed +
Bogs (sometimes with Darlingtonia), marshes, moist to wet meadows, lake edges, pine woods, alpine tundra +
indeterminate +
heterogamous +  and homogamous +
each +  and sessile +
oblanceolate +
densely villous +  and glabrate +
lanceolate +  and deltate +
oblanceolate +  and linear-elliptic +
subequal +
0.08 cm0.8 mm <br />8.0e-4 m <br /> (0.12 cm1.2 mm <br />0.0012 m <br />) +
2-carpellate +
persistent +
Flowering Jun–Sep. +
1-nerved +  and eglandular +
densely villous +  and glabrate +
bearing subulate enations +, hairy +  and bristly +
concave;usually flat;conic +
5 +  and 10 +
exalbuminous +
decumbent-ascending +  and erect +
densely villous +  and glabrate +
appendaged +  and truncate +
papillate +  and smooth +
Aster alpigenus var. andersonii +  and Oreostemma alpigenum subsp. andersonii +
Oreostemma alpigenum var. andersonii +
Oreostemma alpigenum +
variety +
40 cm400 mm <br />0.4 m <br /> (70 cm700 mm <br />0.7 m <br />) +
2 cm20 mm <br />0.02 m <br /> (40 cm400 mm <br />0.4 m <br />) +
40 cm400 mm <br />0.4 m <br /> (70 cm700 mm <br />0.7 m <br />) +