Balsamorhiza macrolepis

W. M. Sharp

Ann. Missouri Bot. Gard. 22: 132. 1935.

EndemicConservation concern
Treatment appears in FNA Volume 21. Treatment on page 97. Mentioned on page 94.

Plants 20–40 (–60+) cm. Basal leaves: blades green to gray-green, elliptic to lanceolate, 15–40+ × 4–14 cm (1–2-pinnatifid, primary lobes ovate to linear, 15–70 × 3–15 mm, usually lobed or toothed), bases cuneate to truncate, ultimate margins usually entire (slightly revolute, not ciliate), apices rounded to acute, faces strigillose to subvelutinous or tomentose (sometimes glanddotted as well). Heads usually borne singly. Involucres hemispheric, (15–) 20–30 mm diam. Outer phyllaries ovate or oblong to lanceolate, 12–30 (–40) mm, usually surpassing inner, apices obtuse to acute or attenuate. Ray laminae 20–30+ mm.


Phenology: Flowering Apr–Jun.
Habitat: Open, dry or moist, grassy or rocky slopes, valleys
Elevation: 90–1400 m

Discussion

Of conservation concern.

Balsamorhiza macrolepis grows in the western foothills of central Sierra Nevada and in the eastern San Francisco Bay area (there mostly extirpated). The tall habit, exhibiting gigas characteristics, suggests that, like B. macrophylla, this taxon may be a polyploid. No hybrids with other species have been noted.

Selected References

None.

Lower Taxa

None.

"broader" is not a number.

... more about "Balsamorhiza macrolepis"
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 +
W. M. Sharp +
bristlelike +
coroniform +
not corrugated +
cuneate +  and truncate +
compound +  and simple +
green +  and gray-green +
15 cm150 mm <br />0.15 m <br /> (40 cm400 mm <br />0.4 m <br />) +
elliptic;lanceolate +
4cm;14cm +
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 +
90–1400 m +
strigillose +  and subvelutinous or tomentose +
pistillate +, staminate +  and neuter +
winged +  and beaked +
dispersed +
Open, dry or moist, grassy or rocky slopes, valleys +
indeterminate +
homogamous +  and heterogamous +
each +  and sessile +
2 cm20 mm <br />0.02 m <br /> (3 cm30 mm <br />0.03 m <br />) +
hemispheric +
alternate +  and opposite +
deltate +
entire +, serrate +  and dentate +
crenate +  and entire +
3 cm30 mm <br />0.03 m <br /> (4 cm40 mm <br />0.04 m <br />) +
oblong +  and lanceolate +
1.2 cm12 mm <br />0.012 m <br /> (3 cm30 mm <br />0.03 m <br />) +
2-carpellate +
persistent +
Flowering Apr–Jun. +
8 +  and 20 +
unequal +  and subequal +
Ann. Missouri Bot. Gard. +
2 cm20 mm <br />0.02 m <br /> (3 cm30 mm <br />0.03 m <br />) +
bearing subulate enations +, hairy +  and bristly +
flat;convex +
exalbuminous +
Endemic +  and Conservation concern +
appendaged +  and truncate +
hirsutulous +  and glabrous +
papillate +
Undefined (tribe Undefined) subtribe Enceliinae +, Undefined (tribe Undefined) subtribe Engelmanniinae +, Undefined (tribe Undefined) subtribe Spilanthinae +, Undefined (tribe Undefined) subtribe Verbesininae +  and Undefined (tribe Undefined) subtribe Zinniinae +
Balsamorhiza macrolepis +
Balsamorhiza subg. Balsamorhiza +
species +
cylindric +
cylindric +
shorter to longer than campanulate +
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 />) +