Balsamorhiza rosea

A. Nelson & J. F. Macbride

Bot. Gaz. 56: 478. 1913.

IllustratedEndemic
Synonyms: Balsamorhiza hookeri var. rosea (A. Nelson & J. F. Macbride) W. M. Sharp
Treatment appears in FNA Volume 21. Treatment on page 96. Mentioned on page 93, 94, 95.

Plants 6–10 (–30) cm. Basal leaves: blades gray-green, oblong to lanceovate, 3–10 (–20) × 2–5 cm (rarely pinnately lobed), bases weakly cordate or truncate, margins crenate to serrate, apices rounded to acute, faces finely strigose to moderately scabrous (usually glanddotted as well). Heads usually borne singly. Involucres hemispheric, 18–20 mm diam. Outer phyllaries deltate or ovate to lanceolate, 8–12 mm, not surpassing inner. Ray laminae (becoming brick-red, often drying to pink or rose, and chartaceous) (8–) 15 (–25) mm (hispidulous abaxially; cypselae strigose). 2n = 38.


Phenology: Flowering Apr–May.
Habitat: Dry hills
Elevation: 300–400 m

Discussion

In a hybrid swarm involving Balsamorhiza rosea and B. careyana, B. rosea remains relatively uncontaminated; the dominance among the hybrids appears to lie with B. careyana. A record of a hybrid between B. rosea and B. careyana from the Spokane area is doubtful.

Selected References

None.

Lower Taxa

None.

"broader" is not a number.

... more about "Balsamorhiza rosea"
not tailed +, rounded +  and obtuse +
connate +  and distinct +
subequal +
scarious +
usually ovate +  and lanceolate +
usually deltate +  and lanceolate +
less corymbiform +  and racemiform +
indeterminate +  and determinate +
William A. Weber +
A. Nelson & J. F. Macbride +
bristlelike +
coroniform +
not corrugated +
truncate +  and cordate +
compound +  and simple +
10 cm100 mm <br />0.1 m <br /> (20 cm200 mm <br />0.2 m <br />) +
3 cm30 mm <br />0.03 m <br /> (10 cm100 mm <br />0.1 m <br />) +
oblong;lanceovate +
2cm;5cm +
winged;ribbed;winged;ribbed +
tuberculate +  and rugose +
barbellulate +  and barbellate +
yellow +  and orange +
hairy +  and glabrous +
3-4-angled +  and prismatic +
fertile +  and bisexual +
fertile +  and bisexual +
Oreg. +  and Wash. +
300–400 m +
finely strigose +  and moderately scabrous +
pistillate +, staminate +  and neuter +
winged +  and beaked +
dispersed +
Dry hills +
indeterminate +
homogamous +  and heterogamous +
each +  and sessile +
1.8 cm18 mm <br />0.018 m <br /> (2 cm20 mm <br />0.02 m <br />) +
hemispheric +
alternate +  and opposite +
deltate +
entire +, serrate +  and dentate +
crenate +  and serrate +
ovate +  and lanceolate +
0.8 cm8 mm <br />0.008 m <br /> (1.2 cm12 mm <br />0.012 m <br />) +
2-carpellate +
persistent +
Flowering Apr–May. +
8 +  and 20 +
unequal +  and subequal +
1.5 cm15 mm <br />0.015 m <br /> (2.5 cm25 mm <br />0.025 m <br />) +
15 cm150 mm <br />0.15 m <br /> (?) +
bearing subulate enations +, hairy +  and bristly +
flat;convex +
exalbuminous +
Illustrated +  and Endemic +
appendaged +  and truncate +
hirsutulous +  and glabrous +
papillate +
Balsamorhiza hookeri var. rosea +
Balsamorhiza rosea +
Balsamorhiza subg. Balsamorhiza +
species +
cylindric +
cylindric +
shorter to longer than campanulate +
entire +, serrate +  and dentate +
45 cm450 mm <br />0.45 m <br /> (100 cm1,000 mm <br />1 m <br />) +
10 cm100 mm <br />0.1 m <br /> (45 cm450 mm <br />0.45 m <br />) +